presentation of pcb design

The PCB Design Process Methodology and Application

Table of Contents

Schematic design: the first step in the pcb design process, simulation-driven design in your schematic, your printed circuit board layout process, get to fabrication with post-layout simulations and documentation, create your pcb design process methodology in altium designer.

Your next great idea probably started on a piece of notebook paper. How do you go about taking your great idea and turning it into a real design, and eventually into a finished product? There are a number of ways to approach your new design. Any new circuit board can be very complicated, but the right PCB design process methodology helps you get through the design process quickly.

PCB designers follow a general PCB design process methodology, and there are some important things to consider in your schematic and layout before you get started. Who will be using your circuit board? Where will it be used? Which aspects of its environment will affect its functionality? Thinking about the answers to these questions can help you avoid common problems in PCB design process methodology and determine the right PCB design process methodology for your next idea.

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PCB designers used to be forced into using multiple programs with a rigid workflow to create a schematic and PCB layout. Now, innovations in PCB design software allow PCB designers to create a PCB design process methodology around complex key features in their circuit board layout. Powerful routing tools, schematic simulation features, and ECAD/MCAD collaboration features help keep PCB designers productive and building advanced printed circuit designs.

Once it comes time to lay out your circuit board, you’ll need to adopt a methodology that ensures your signals remain free of common problems, your board is manufacturable, and that you have followed important design rules. The right PCB design software with design rule checking features throughout the schematic and layout phases will help ensure your printed circuit boards can be manufactured properly and will function as designed. You can take advantage of the functionality and power of PCB design software applications—such as Altium Designer—to create advanced printed circuit designs with ease.

Once you’ve got a basic idea for your board, it’s time to start creating schematics that show how components are connected throughout your printed circuit board. Your schematic is the first document you will create when you want to create a real model for your entire product. Your schematic will show all connections between components (both single-ended and differential) that will appear in your circuit board.

Having access to components sets the stage for placing the components on the schematic and for wiring the circuit. Well-structured and detailed design notes also assist with determining signal integrity and power integrity faults with the design. Your PCB design process methodology begins with selecting and sourcing components, followed by creating schematics that show electrical behavior.

Selecting components for your schematic in your PCB design software

Some designs will require simulations as an application of the PCB design process methodology, especially if you are not using well-known circuits, making creative use of active components, or working with proprietary components. With the right simulation package, you can evaluate circuit functions before you create your PCB layout. This can help you explore the effects of transients in your interconnects and components, address undershoot/overshoot, and plenty of other performance aspects of your circuit board design.

Some components, like printed circuit antennas or external antennas without impedance matching or filtration, will require simulations to design an appropriate impedance matching network to support circuit board signal integrity. You can take a simulation-driven approach to help you design supporting components to ensure signal integrity before you finalize your schematic. This PCB design technology will help prevent some unnecessary redesigns after you start laying out your PCB layout.

Learn some design strategies for getting started with schematic design.

Learn more about enforcing organization with hierarchical schematics.

Learn more about creating simulations from your schematics in your PCB design software.

Schematic organization helps you create the right PCB design process methodology.

After you create schematics and verify electrical functionality with simulation tools, you need to define your layer stack, which will show the arrangement of signal layers, each power plane, and each ground plane. When you’re ready to start arranging components and route traces throughout your PCB layout, you can define routing rules and constraints within your PCB design software on any of the key features in your printed circuit design. These design rules and constraints can be defined around specific industry standards that govern manufacturability and functionality. This helps ensure that you do not make any errors while creating your PCB layout.

As you create your PCB layout, your PCB design software should check your routing and layout against the design rules and constraints you define. This helps you catch errors early and prevent them altogether. When you’ve completed your layout, you can use post-layout simulations to verify signal integrity before you create manufacturer deliverables for your fabricator.

Learn more about routing traces in your PCB layout.

Learn more about signal integrity in your PCB with Eric Bogatin.

Learn more about the manufacturing process and how manufacturers use design data.

Create your manufacturing deliverables within your PCB design process methodology.

The unified design rules-driven environment in Altium Designer lets PCB designers easily create schematic drawings, a PCB layout, and manufacturing documentation in a single environment. After configuring your printed circuit board workspace, layers, grids, and design rules, your design team can arrange components and route traces throughout a circuit board layout. The PCB Editor supports the 32 signal layers, 16 internal power plane and ground plane layers, and 32 general purpose mechanical, special, and non-electrical layers. Altium Designer displays attributes for all layers in a color-coded workspace. You’ll have the best PCB design technology on the market when you use Altium Designer.

Stay Productive with Unified PCB Design Software

Because your PCB design process occurs within a seamless, unified environment, your team can easily move from creating a project to full-scale production. Every function in Altium Designer is built on a rules-driven engine, allowing PCB designers to apply design rules to a project and ensure electrical functionality. Moreover, Altium Designer provides tools for automatically compiling extensive manufacturing documentation, including Gerber files, design notes, and bills of materials. The key features in Altium Designer can be viewed in extensive tutorials, and you'll have access to plenty of schematic design and PCB layout resources to create your board.

Learn more about the unified design rules-driven environment in Altium Designer.

Learn more about producing manufacturing documentation in Altium Designer.

Learn more about using Altium Designer through Altium Academy.

Integrated 3D modeling for printed circuit board design makes Altium Designer stand out from the rest.

No other PCB design software platform gives you this many tools in an easy-to-use interface. For your PCB designing tutorial, Altium gives you access to on-demand webinars, design tutorials, and the AltiumLive forum. You’ll have the tools and resources you need for successful printed circuit board design in Altium Designer.

Altium Designer on Altium 365 delivers an unprecedented amount of integration to the electronics industry until now relegated to the world of software development, allowing designers to work from home and reach unprecedented levels of efficiency.

We have only scratched the surface of what is possible to do with Altium Designer on Altium 365. You can check the product page for a more in-depth feature description or one of the On-Demand Webinars .

About Author

Zachariah Peterson has an extensive technical background in academia and industry. He currently provides research, design, and marketing services to companies in the electronics industry. Prior to working in the PCB industry, he taught at Portland State University and conducted research on random laser theory, materials, and stability. His background in scientific research spans topics in nanoparticle lasers, electronic and optoelectronic semiconductor devices, environmental sensors, and stochastics. His work has been published in over a dozen peer-reviewed journals and conference proceedings, and he has written 2500+ technical articles on PCB design for a number of companies. He is a member of IEEE Photonics Society, IEEE Electronics Packaging Society, American Physical Society, and the Printed Circuit Engineering Association (PCEA). He previously served as a voting member on the INCITS Quantum Computing Technical Advisory Committee working on technical standards for quantum electronics, and he currently serves on the IEEE P3186 Working Group focused on Port Interface Representing Photonic Signals Using SPICE-class Circuit Simulators.

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How to Design a PCB Layout

Posted by Scott Campbell | DIY Electronics | 22

Breadboards are great for prototyping circuits, but they aren’t so good for actually using the thing you’re building. At some point, you’ll probably want to make a project more permanent. The best way to do that is to put it on a PCB.

In this tutorial, I’ll walk you through the process of designing a PCB layout and getting it printed by a custom PCB manufacturer. The performance of your circuit will depend greatly on how it’s laid out on the PCB, so I’ll give you lots of tips on how to optimize your design.

You can always etch PCBs at home with a process that’s similar to developing prints from photographic film. But that method is messy and it uses a lot of chemicals. It’s much easier (and cheaper) to get your PCB made by a professional manufacturer. To demonstrate the process, I’ll use an online service called EasyEDA  to design a PCB layout for an LM386 audio amplifier, then I’ll have it manufactured and show you the results. Their free online design software is easy to use and the rates are very affordable.

It All Starts With a Schematic

Before you start designing your PCB, it’s a good idea to make a schematic of your circuit. The schematic will serve as a blueprint for laying out the traces and placing the components on the PCB. Plus, the PCB editing software can import all of the components, footprints, and wires into the PCB file, which will make the design process easier (more on this later).

Start by logging in to EasyEDA , and create a new project:

Once you’re on the Start page, click on the “new Schematic” tab:

Now you’ll see a blank canvas where you can draw the schematic:

It’s best to place all of your schematic symbols on the canvas before drawing any wires. In EasyEDA, schematic symbols are located in “Libraries”. The default EasyEDA library has most of the common symbols, but there are also “User Generated Libraries” with lots of other symbols:

Each schematic symbol you use needs to have a PCB footprint associated with it. The PCB footprint will define the component’s physical dimensions and placement of the copper pads or through holes. Now is a good time to decide which components you’ll be using.

The schematic symbols in the EasyEDA library already have footprints associated with them, but they can be changed if your’re using a different size or style:

To change the footprint associated with a schematic symbol, search in the “User Generated” libraries for a footprint that matches the component you’re using. Once you find it, click on the heart icon to “Favorite” it:

Then copy the name of the component:

Now click on the symbol in the schematic editor, and paste the name of the new footprint into the “package” field in the right sidebar menu (watch the video below for a demonstration):

Once all of your symbols are placed on the schematic and you’ve assigned footprints to each symbol, it’s time to start drawing the wires. Rather than explain the details of all that in this article, I’ve made a video so you can watch me draw the schematic for my LM386 audio amplifier:

After all the wiring is done, it’s a good idea to label the symbols. The labels will be transferred over to the PCB layout and eventually be printed on the finished PCB. Each symbol has a name (R1, R2, C1, C2 etc.) and value (10 μF, 100 Ω, etc.) that can be edited by clicking on the label.

The next step is to import the schematic into the PCB editor, but before we do that, let’s talk about some things to keep in mind when designing your PCB.

PCB Design Optimization

Identify what each part of your circuit does, and divide the circuit into sections according to function. For example, my  LM386 audio amplifier circuit  has four main sections: a power supply, an audio input, the LM386, and an audio output. It might help to draw some diagrams at this point to help you visualize the design before you start laying it out.

Keep the components in each section grouped together in the same area of the PCB to keep the conductive traces short. Long traces can pick up electromagnetic radiation from other sources, which can cause interference and noise.

The different sections of your circuit should be arranged so the path of electrical current is as linear as possible. The signals in your circuit should flow in a direct path from one section to another, which will keep the traces shorter.

Each section of the circuit should be supplied power with separate traces of equal length. This is called a  star configuration , and it ensures that each section gets an equal supply voltage. If sections are connected in a daisy-chain configuration, the current drawn from sections closer to the supply will create a voltage drop and result in lower voltages at sections further from the supply:

PCB Shape and Size

It’s not uncommon to see round, triangular, or other interesting PCB shapes. Most PCBs are designed to be as small as possible, but that’s not necessary if your application doesn’t require it.

If you plan on putting the PCB into an enclosure, the dimensions may be limited by the size of the housing.  In that case, you’ll need to know the enclosure’s dimensions before laying out the PCB so that everything fits inside.

The components you use will also have an effect on the size of the finished PCB. For instance, surface mounted components are small and have a low profile, so you’ll be able to make the PCB smaller. Through hole components are larger, but they’re often easier to find and easier to solder.

User Interfaces

The location of components like power connections, potentiometers, LEDs, and audio jacks in your finished project will affect how your PCB is laid out. Do you need an LED near a power switch to indicate that it’s on? Or do you need to put a volume potentiometer next to a gain potentiometer? For the best user experience you might have to make some compromises and design the rest of your PCB around the locations of these components.

Larger circuits can be difficult to design on a single layer PCB because it’s hard to route the traces without intersecting one another. You might need to use two copper layers, with traces routed on both sides of the PCB.

The traces on one layer can be connected to the other layer with a via . A via is a copper plated hole in the PCB that electrically connects the top layer to the bottom layer. You can also connect top and bottom traces at a component’s through hole:

Ground Layers

Some double layer PCBs have a ground layer, where the entire bottom layer is covered with a copper plane connected to ground. The positive traces are routed on top and connections to ground are made with through holes or vias. Ground layers are good for circuits that are prone to interference, because the large area of copper acts as a shield against electromagnetic fields. They also help dissipate the heat generated by the components.

Layer Thickness

Most PCB manufacturers will let you order different layer thicknesses. Copper weight  is the term manufacturers use to describe the layer thickness, and it’s measured in ounces. The thickness of a layer will affect how much current can flow through the circuit without damaging the traces. Trace width is another factor that affects how much current can safely flow through the circuit (discussed below).  To determine safe values for width and thickness, you need to know the amperage that will flow through the trace in question. Use an  online trace width calculator  to determine the ideal trace thickness and width for a given amperage.

If you look at a professionally designed PCB, you’ll probably notice that most of the copper traces bend at 45° angles. One reason for this is that 45° angles shorten the electrical path between components compared to 90° angles. Another reason is that high speed logic signals can get reflected off the back of the angle, causing interference:

If your project uses digital logic or high speed communication protocols above 200 MHz, you should probably avoid 90° angles and vias in your traces. For slower speed circuits, 90° traces won’t have much of an effect on the performance of your circuit.

Trace Width

Like layer thickness, the width of your traces will affect how much current can flow through your circuit without damaging the circuit.

The proximity of traces to components and adjacent traces will also determine how wide your traces can be. If you’re designing a small PCB with lots of traces and components, you might need to make the traces narrow for everything to fit.

Creating the PCB Layout

Now that we’ve discussed some off the ways you can optimize your PCB design, let’s see how to layout a PCB in EasyEDA.

Open your schematic in the schematic editor, and click on the “Convert Project To PCB” button:

The footprints associated with each schematic symbol will be automatically transferred to the PCB editor:

Notice the thin blue lines connecting the components. These are called  ratsnest  lines. Ratsnest lines are virtual wires that represent the connections between components. They show you where you need to route the traces according to the wiring connections you created in your schematic:

Now you can start arranging the components, keeping in mind the design tips mentioned above. You might want to do some research to find out if there are any special design requirements for your circuit. Some circuits perform better with certain components in specific locations. For example, in an LM386 amplifier circuit the power supply decoupling capacitors need to be placed close to the chip to reduce noise.

After you’ve arranged all of the components, it’s time to start drawing the traces. Use the ratsnest wires as a rough guide for routing each trace. However, they won’t always show you the best way to route the traces, so it’s a good idea to refer back to your schematic to verify the correct connections.

Traces can also be routed automatically using the software’s auto-router . For complicated circuits, it’s generally better to route traces manually, but try the auto-router on simpler designs and see what it comes up with. You can always adjust individual traces later.

This video will show you how to draw traces in EasyEDA’s PCB editor:

Now it’s time to define the size and shape of the PCB outline. Click on the board outline and drag each side until all of the components are inside:

The last thing to do before placing the order is to run a design rule check . A design rule check will tell you if any components overlap or if traces are routed too close together. The design rule check can be found by clicking the “Design Manager” button in the right side window:

Items that fail the design rule check will be listed below the “DRC Errors” folder. If you click on one of the errors, the problem trace or component will be highlighted in the PCB view:

You can specify your own settings for the design rule check by clicking the drop down menu in the upper right hand corner and going to Miscellaneous > Design Rule Settings:

This will bring up a window where you can set design rules for trace width, distance between traces, and other useful parameters:

At this point it’s a good idea to double check your PCB layout against your schematic to make sure that everything is connected properly. If you’re satisfied with the result, the next step is to order the PCB. EasyEDA makes this part really easy…

Ordering the PCB

Start by clicking the “Fabrication Output” button in the top menu of the PCB editor:

This will take you to another screen where you can choose the options for your PCB order :

You can select the number of PCBs you want to order, the number of copper layers, the PCB thickness, copper weight, and even the PCB color. After you’ve made your selections, click “Save to Cart” and you’ll be taken to a page where you can enter your shipping address and billing information.

You can also download your PCB’s Gerber files if you want to send them to a different manufacturer:

Gerber files are a set of image files that contain the patterns used to manufacture your PCB. All of the files are compressed into a single .zip file. There is a separate file for the copper traces, silk screen, and locations of drill holes and vias:

I ordered 15 PCBs for my LM386 audio amplifier circuit and the cost came out to about $15 USD. Manufacturing and shipping took about two weeks. The PCBs were well made, and I couldn’t find any defects. After I soldered on the components and tested the amplifier, it worked great. You can clone my LM386 amplifier schematic and PCB here  if you want.

Making your own custom PCB is a lot of fun, and the results can be very rewarding. Hopefully this article will help you get your prototype circuit onto a PCB. Let us know in the comments if you have any questions, and let us know what PCB design projects you have planned. If you liked this tutorial and want to get more like it, be sure to subscribe!

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Printed Circuit Board Design

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Printed Circuit Board Design

Nov 01, 2014

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Printed Circuit Board Design. Sung Yeul Park Dept. of Electrical and Computer Eng University of Connecticut September 24, 2014. What can you see from an electrical engineering perspective?. Three Elements to be considered. Components : - How to select components?

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Printed Circuit Board Design Sung Yeul Park Dept. of Electrical and Computer Eng University of Connecticut September 24, 2014

What can you see from an electrical engineering perspective? 2

Three Elements to be considered • Components : - How to select components? - What values are needed? - What kind of package will be? • Printed Circuit Board : - Schematic Design - PCB Layout Design - Prototype board • Case or Box for the prototype board : - Purchase or build by yourself 3

Printed Circuit Board ? A printed circuit board (PCB) mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. PCBs can be single sided (one copper layer),double sided (two copper layers) or multi-layer. Conductors on different layers are connected with plated-through holes called vias. Advanced PCBs may contain components - capacitors, resistors or active devices - embedded in the substrate.

Printed Circuit Board Design A PCB as a design on a computer (left) and realized as a board assembly populated with components (right). The board is double sided, with through-hole plating, green solder resist and a white legend. Both surface mount and through-hole components have been used. 5

Printed Circuit Board Design Schematic Design 6 PCB Layout

Key terms for PCB design • Pads are where the components are soldered to the PCB. • Traces are the copper tracks that connect pads together. • Via are small holes through the board that link a bottom and top trace together electrically. Traces on the same layer cannot cross, so often, when you are laying out a PCB, you need to a signal to jump from one layer to another. 7

Key terms for PCB design • Silk-screen refers to any lettering that will appear on the final board. • Solder-mask is a layer of insulating lacquer that covers both sides of the board except where there are pads. 8

Multi-layer PCB design • 2 Layer PCB design: Top layer and bottom layer • 4 Layer PCB design: Top, Bottom, and two middle layers. 9

PCB design procedure • Design specification • Circuit diagram • Schematic design  Select components Check the dimension  Build a footprint  Make a PCB library  Add parts • Export schematic design to layout design • Route all connection • Design rule check • Generate Gerber files and drill file and zip them • Upload zip file to PCB order website 10

PCB Library design • Are you Ready to build a library? • Component datasheet • Dimension: mil (imperial unit) vs mm (metric) 1 inch =1000 mil, 1 mil = 0.0254 mm 1 mm = 39.3700787 mil DIP component and connector: 100 mil or 2.54 mm • Symbol in schematic vs Exact dimension in Layout • Pad number should be matched in schematic symbol and layout footprint 11

PCB Library dimension example • Male header 12

PCB manufacturing procedure http://www.pa-international.com/images/stories/Multi-layer%20Metal%20Plate%20PCB%20Process%20Flow%20Chart.JPG 13

Tips for PCB design • Keep traces straight, • Try to avoid 90o turns use two 45o’s. • Double, even triple check layout, • Having a fresh pair of eyes look it over, • “measure twice, cut once” idea. • Trace thickness & spacing • Spacing of at least .010”, • 0.030” for In-house • ~0.025” per 1 Amp carrying lines, • Don’t use anything smaller than 0.010” for traces, • 0.030” for In-house milling. • Try to keep all connections on one side of PCB • Take into account component package 14

Free PCB design program • EAGLE PCB Design Software: http://www.cadsoftusa.com/download-eagle/freeware/ • Express PCB: http://www.expresspcb.com/expresspcbhtm/download.htm • Free PCB: http://www.freepcb.com/ • Advanced Circuits: http://www.4pcb.com/free-pcb-layout-software/ 15

Making PCBs • Layout your circuit / circuits • Check out http://www.expressPCB.com for some great tips on component layout and power distribution. • Layout is more of an art. • Tight spaces • Lots of connections • Make a 2 level board into a 3 level with vias 16

PCB Design Example 17

Top and Bottom Layer 18

Middle Layers(2nd & 3rd) 19

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PCB Design Assignment • Every senior design team need to design one printed circuit board during fall semester. • The number of components should be more than 10 components with connectors, surface mount components, through-hole components, and ICs. • The number of layers should be 2 or more. • Report due date is November 19th 2014 • Report: Schematic, Layout, and Free dfm Check result • https://www.my4pcb.com/net35/FreeDFMNet/FreeDFMHome.aspx 21

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Printed circuit board manufacturing

Printed circuit board manufacturing.

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Printed Circuit Board Design. Design Team 6 Alex Volinski Derek Brower Phil Jaworski Jung-Chung Lu Matt Affeldt. Introduction. Software Flow Routing / Board Layout Components/Assembly Electrical Considerations. Software Flow-Schematic. Software Packages Schematic Advantages

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Printed Circuit Board

Printed Circuit Board. System Block Diagram:. Schematic Pin Mapping. Power Supply. PCB Layout. Vin Min: 3.2V Vin out: 9V Vin Max: 3.4 V Frequency:1600kHz. Finite Element Analysis.

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Printed Circuit Board Manufacturer China

RayMing Technology is the China's leading PCB Board Manufacturer company located in Shenzhen & Jian offering the aggressive cost savings with a flexible production of PCB prototyping & PCB assembling services.

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Printed Circuit Board Description

Printed Circuit Board Description. Note 2. To VCO Implement whatever interface circuit you need in this area. C 2. Crystal. C 1. R 1. C bypass. MC12181. Note 1. Rx. Ro. C bypass. 8-pin DIP. 1000pF. C A. Cx. Co. 1000pF. GND.

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Printed Circuit Board (PCB) Market

Growth of consumer electronics in the North America ushered in the evolution of new technologies in the Printed Circuit Board (PCB) Market. Request for Sample Data / Brochure: http://industryarc.com/pdfdownload.aspx?id=110

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printed circuit board cutter

If you want to have a printed circuit board cutter which also cut the hard wires or LED, then just buy it from our website at best price

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Printed Circuit Board Supplier

PCBs are everywhere. Precision Electronic Technologies, a China PCB Manufacturing company uses extensive manufacturing knowledge and experience to seamlessly transfer best equipments for the cost-effective manufacture of larger production runs. Contact us 852 3521 0005.

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Printed Circuit Board Assembly

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Printed Circuit Board Manufacturer

Welcome to Avanti Circuits- A Company that specializes in designing and supplying USA-made PCBs. We know the importance of getting orders on time, and with our extended experience spanning over three decades, we are capable of delivering products more efficiently within the decided timelines.

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Your one-stop source for all types of PCB Design, Fabrication, Printed Circuit Board Manufacture & Full Turnkey PCB Assembly in the Heart of Silicon Valley!

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Printed Circuit Board Fabrication

High Quality PCB Co., Limited is a leading PCB(Printed Circuit Board) Manufacturer in China since 1995. Dedicate to the technologies innovation, being engaged in IC Substrates, High-Density Interconnect PCB, Multi-layer PCB, Rigid Flexible PCB, Flexible, Radiofrequency PCB. Both prototypes and mass production projects are available for High Quality PCB.

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Printed Circuit Board Design. Avnish Kumar Dept. of Electrical & Computer Engineering University of Connecticut September 26, 2016. (Based on Prof. Sung Y. Park’s slides, Fall 2014). Printed Circuit Board ?.

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Printed Circuit Board Manufacturers

Acme Circuits provides high-quality PCB manufacturing to meet many different needs in the dynamic electronics company. We offer competitive solutions for our clients and have recognized domestic and off-shore relationships with many high-quality and respected fabricators. A professionally managed organization, Acme Circuits is skillfully engaged in manufacturing, parts assembling and exporting of precision engineered printed circuitry boards (PCB). Incorporated in the year 2005, we've an excellent track record in PCB fabrication in addition to servicing. https://www.acmecircuit.com/

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Printed Circuit Board Assembly – PCBA Design 2020

Pcb board assembly: At times there are also customers who look for the printed board materials that are used in large ships. In constructing a ship, a lot of PCB materials are required such as 1OZ copper, different layer circuit boards, solder mask, surface finishing, etc. View more: https://www.greatpcb.com/pcb-assembly/

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Printed Circuit Board Materials Market

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Printed Circuit Board Market

The primary drivers surging the growth of the global printed circuit board market include industrial automation, technological advancements in healthcare devices, and the growing demand for advanced electronic devices by consumers.

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Printed Circuit Board Backplane

Backplane PCBs are an essential component of many electrical systems, providing a convenient and efficient way to connect multiple printed circuit boards. Weu2019ll explore the basics of backplane PCBs and discuss the process of fabricating them. Backplane PCBs vary in terms of types, construction materials, and the key steps in the fabrication process. After understanding all essentials, you can create a reliable, high-quality backplane Printed Circuit Board that meets your needs. For more details to visit: https://www.pnconline.com/blog/printed-circuit-board-backplane/

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What is Design Rule Checking in PCB Design?

Explore the importance of Design Rule Checking (DRC) in PCB design and how Autodesk Fusion enhances the process.

When designing a product, it’s necessary to ensure that the design has no flaws before sending it to manufacturing. Whether you’re verifying that a component is manufacturable, or optimizing a design for the highest quality in manufacturability , design rule checks are a pivotal part of product design. In the realm of PCB fabrication, there are especially notable limitations to be aware of and check before moving on to the next stage of development. Let’s learn more about design rule checking (DRC) and explore how Autodesk Fusion can help facilitate the DRC process.

Understanding DRC

At its core, DRC primarily focuses on validating a PCB design against predefined criteria and standards. These criteria often pertain to the capabilities and limitations of manufacturing processes, materials, and the intended functionality of the product. For example, in electronics design, DRC includes checking aspects like spacing between circuit elements, trace width, and hole sizes to ensure they are within the limits that can be reliably manufactured.

The purpose of DRC is to identify potential manufacturing issues early in the PCB design process—thereby reducing costly reworks and delays. While DRC generally refers to PCB design, product design can also encounter some common design rule checks. These include: 

• Dimensional accuracy: This involves ensuring that all dimensions of a design are accurate and within the tolerable limits for manufacturing. In the aerospace industry, for instance, the dimensional accuracy of components like turbine blades is crucial, as even minor deviations can lead to performance issues or safety hazards.
• Material compatibility: DRC also checks for the compatibility of selected materials with the intended manufacturing processes and product usage. For example, in the automotive industry, selecting the appropriate material for engine components is critical for withstanding high temperatures and pressures.
• Tolerance analysis: Tolerances indicate the allowable variations in dimensions. In precision engineering, such as in the manufacture of medical devices, tight tolerances are essential to ensure the functionality and reliability of products like surgical instruments.
• Electrical rules for PCB design : In electronics manufacturing, DRC includes checking the spacing between circuit elements, trace width , and hole sizes in PCB design. In high-speed electronics, precise electrical rules must be adhered to for the system to function correctly.

Autodesk Fusion and DRC

A Design Rule Check allows you to establish a set of boundaries for trace widths, component spacing, via diameters, etc. Autodesk Fusion offers comprehensive support for all of these areas and, during a DRC, will flag any concerns.

Fusion’s built-in rule checkers play a pivotal role in comparing design elements against sets of constraints. This feature aids designers in making decisions that are both cost-effective and manufacturable, ensuring that the final product can be produced efficiently and meet market demands.

Learn how to run a DRC in Autodesk Fusion here.

Ensuring top product quality

By ensuring that designs adhere to the manufacturer’s capabilities, DRC helps designers create better-quality products with higher yields and a lower chance of failure. With a slew of advanced features to assist the DRC process, Autodesk Fusion is a leading tool for all product design needs. As products continue to become more advanced and complex, DRC features, like those in Fusion, will be necessary for maintaining product quality and reliability. 

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How to Make a “Good” Presentation “Great”

• Guy Kawasaki

Remember: Less is more.

A strong presentation is so much more than information pasted onto a series of slides with fancy backgrounds. Whether you’re pitching an idea, reporting market research, or sharing something else, a great presentation can give you a competitive advantage, and be a powerful tool when aiming to persuade, educate, or inspire others. Here are some unique elements that make a presentation stand out.

• Fonts: Sans Serif fonts such as Helvetica or Arial are preferred for their clean lines, which make them easy to digest at various sizes and distances. Limit the number of font styles to two: one for headings and another for body text, to avoid visual confusion or distractions.
• Colors: Colors can evoke emotions and highlight critical points, but their overuse can lead to a cluttered and confusing presentation. A limited palette of two to three main colors, complemented by a simple background, can help you draw attention to key elements without overwhelming the audience.
• Pictures: Pictures can communicate complex ideas quickly and memorably but choosing the right images is key. Images or pictures should be big (perhaps 20-25% of the page), bold, and have a clear purpose that complements the slide’s text.
• Layout: Don’t overcrowd your slides with too much information. When in doubt, adhere to the principle of simplicity, and aim for a clean and uncluttered layout with plenty of white space around text and images. Think phrases and bullets, not sentences.

As an intern or early career professional, chances are that you’ll be tasked with making or giving a presentation in the near future. Whether you’re pitching an idea, reporting market research, or sharing something else, a great presentation can give you a competitive advantage, and be a powerful tool when aiming to persuade, educate, or inspire others.

• Guy Kawasaki is the chief evangelist at Canva and was the former chief evangelist at Apple. Guy is the author of 16 books including Think Remarkable : 9 Paths to Transform Your Life and Make a Difference.

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