Tagged Questions
4
votes
1answer
19 views
What are these spots on the PCB that are by the mounting holes?
When you look at the board, there is a weird part of the PCB right of the top left mounting hole. There is also another one above the top right mounting hole.
...
6
votes
3answers
194 views
Does PCB artwork affect operation and how is the effect validated?
Sometimes PCB designers will draw some art on unused PCB areas. Like here and here.
Looks great, but does this affect schema functioning? According to answers to this question an entirely isolated ...
6
votes
5answers
598 views
Ideas to stack multiple PCBs on top of each other?
My design has a number of boards stacked on top of each other. I would like to connect signals across the boards. The boards all need the same 10 signals running through them (all boards from top to ...
-1
votes
2answers
359 views
Which is the best PCB software to generate gerber file?
I have seen MultiSim+Ultiboard does some good jobs creating single-layer PCB to multi-layers, yet in academic version, it does not do auto placement. Because of this, during autorouting process it ...
0
votes
4answers
278 views
High Quality Free PCB Software Download
is there any high quality PCB software that's free for download? I am trying to design a mother board, and want to be sure of the circuitry. Is there any PCB software that if you order your design it ...
7
votes
1answer
230 views
First-time-right designing?
see this question.
OP wants to breadboard a PC motherboard design, which is, er, funny, but raises the question: how are motherboards designed? Breadboarding, with incremental improvements, is out, ...
1
vote
1answer
252 views
Making connections to coin-cell batteries
I'm working on a project that will be using several coin cells in parallel to a flex PCB. The product will be disposable with non-replaceable batteries, so I'm looking for ways to attach the ...
9
votes
3answers
713 views
Getting started with PCB designing
I'm a hobbyist EE in college, and have been building breadboard circuits and perfboard circuits for the past year or so. I want to move on to doing PCB design.
I wanted to start with something small ...
6
votes
1answer
774 views
PCB 'Emi proof' design
Currently I'm designing a GPS basestation which will have a radiomodem (broadcasting at 407-480MHz), a ARM7 microcontroller running at 60MHz and a FTDI USB chip. The FTDI USB chip even runs at 480MHz ...
16
votes
7answers
1k views
SMD vs. Through-hole components in high vibration environments
This is more of a opinion question than a information question. I am designing some boards that will be working near decent sized actuators, so I ask you, what is more resistant a 0805 SMD or a 7mm ...
11
votes
3answers
1k views
Getting started with PCB Layout for BGA Packages
Are there any good resources for learning the intricacies of PCB layout when dealing with BGA packages?
I'm very familiar with layout for almost every SMT part that has leads on the edge (QFP, TSSOP, ...
8
votes
3answers
541 views
What to think about when designing HF PCB's?
I am currently designing a small PCB in Eagle Cad that has a GPS 1PPS signal (one short pulse per second) as input. The pulsetime for the 1pss is something like 1us.
Ok, I know thats not super HF ...
31
votes
13answers
3k views
What are low cost circuit and PCB design software?
Do you know of any freeware or low cost circuit / PCB design software?
I know a few which I have listed below but I was wondering if there were more of its kind. Please mention the good features and ...
