Category:PCB PCB Design Rules

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Initially PCBs were designed manually by creating a photomask on a clear mylar sheet, usually at two or four times the true size. Starting from the schematic diagram the component pin pads were laid out on the mylar and then traces were routed to connect the pads. If you have many questions of PCB Design, please come here!

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Search Results: 276 Threads,28 Pages
3 answers
231 views

The way of covering up exposed high voltage pcb traces

The thick lines of my PCB should be able to pass a high voltage signal through it. The board will be kept inside a enclosed box. I think my boar5d is relatively safe. However, there is still a questi... (See More)

Thomas Lithen
2016-10-01 14:55:30
narcisbahi
2016-12-13 22:20:10
3 answers
308 views

For a 4 layers PCB, is it necessary to cover with ground polygon on Layer 1&4 necessary?

I will cover all the empty spaces in the layout with Ground in simple single or doubled layer PCB. The stackup of my 4 layers PCB is as fllowing: Layer 1: top signal Layer 2: Ground plane Layer 3: ... (See More)

Daniel Gilbert
2016-09-29 14:37:52
rownickijan
2016-12-17 20:12:32
1 answers
280 views

Would you like to offer me your PCB design?

I'm not very skilled at designing PCBs,so I want to know if anyone would like to give me a design,helping me make some boards. (See More)

Daniel Gilbert
2016-09-25 13:00:11
Charles
2016-09-27 13:00:11
2 answers
185 views

The PCB tool for 50 ohm transmission lines, does it exist?

Is there any tool to help with 50 ohm transmission lines? What is the way to draw a spiral track in the pcb artwork? (See More)

Bartosz Orzechowski
2016-09-23 23:16:37
Prashanth Gunjur
2016-11-17 16:58:38
2 answers
201 views

Is there a way to make via stitching before copper fill without problem?

I need via's to connect ground planes across different layers. But I have problems in doing so with the right order. (See More)

javier mainar val
2016-09-21 19:33:29
drka
2016-12-30 16:15:19
3 answers
197 views

How to work correctly with GND and PWRGND?

There is a circuit of me with a couple of bucket converters. The bucket converters are either standalone or getting a PWM signal from a processor and give a feedback to the processor. As far as I kn... (See More)

Charlie Laub
2016-09-21 08:53:29
barkoczay
2016-11-06 23:21:44
3 answers
213 views

Decoupling caps and PCB layout

When it comes to the finer details of pcb layout. Here is a example of a recent board of mine, and I have highlighted three of the decoupling caps. The MCU is a LQFP100 package and the caps are ... (See More)

sakchaisiri
2016-09-20 20:10:04
Chris
2016-12-21 04:09:13
3 answers
192 views

How to center the grid to a pad in 4.0 RC 1?

I can center the grid to a pad in 2013 veresion of RC. Is it possible in 4.0? (See More)

Ben
2016-09-18 23:43:13
pmaggi
2016-11-29 01:16:03
3 answers
285 views

PCB design for high-speed TTL

I am designing high-speed TTL-based processor. I will be using fast AC, ACT and LVC series, so switching frequencies will be in 100Mhz range with 1-3ns fronts. I plan to use double-sided PCB, Bo... (See More)

Lukas Krehel
2016-09-16 16:16:50
Kermit
2016-12-28 20:20:44
3 answers
329 views

The method of making traces on an universal PCB

I'd like to know best way to make traces on universal PCB's with individual holes. (See More)

Jukka Ainali
2016-09-15 21:53:15
Fly
2016-11-18 17:17:39
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