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Printed Circuit Board Designer's Reference; Basics by Chris Robertson

Printed Circuit Board Designer's Reference; Basics Chris Robertson ebook
ISBN: 0130674818, 9780130674814
Publisher: Prentice Hall PTR
Format: chm
Page: 304

This plane is commonly formed by a metal case or ground area on a PCB. Capacitive sensors are areas on a PCB that have been filled with copper and then connected back to the PIC® for the designer. Edge rate changes over the While FR406 sets the industry standard for basic multilayer PCB fabrication, FR408 is a high-performance FR4 epoxy dielectric for improved signal performance. 50 and 200 thou are the most common. Move (F7) commands, I increased the border to 1.5x1.2" which is a bit bigger than I would like, but for the purposes of this tutorial, we're not going to stress tight packing of components - rather we want to stress the basics for a good PCB. The majority of electronic 100 thou is a basic “reference point” for all aspects of PCB design, and a vast array of common component lead spacing are multiples or fractions of this basic unit. Microchip touch and input sensing solutions web site at http://www.microchip.com/mTouch. This isn't just for the sake of nostalgia, although that is a major reason! The ground plane acts as a counterpoise that forms the other 1/4-wave element, creating in essence a half-wave dipole. So whether you like it or not – you are now a high- speed designer. As any long time PCB designer will tell you, you should always use imperial units (i.e. When developing a capacitive touch system, it is important to know what your main goal should be from. They're just there for your own reference. If using a RightTouch turnkey product, these techniques are built-in as part of the solution. This article presents a brief overview of board level simulation for high-speed, multilayer PCB design and highlights some common traps and some tips so hopefully you get it right first time. Having a PCB sit flat against a surface is also a bad idea electrically - I've sent $200 up in smoke because some bits of clipped wire shorted against the bottom of my board when I was troubleshooting it .