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: 262 Threads,27 Pages
2 answers
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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
160 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
191 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
167 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
263 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
285 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
4 answers
251 views

Why people prefered for 45 degree angles in PCB routing?

I've fond that every single modern PCB is routed at 45 degree angle increments. Why does the industry prefer this so much? Doesn't any-angle routing works better? (See More)

Thomas Cobb
2016-09-15 11:08:09
Elektro Doni
2016-12-31 01:50:40
3 answers
193 views

The way of turning off GND airwires

How to toggle visibility of the GND airwires in the ratsnest? (See More)

Telesound Bt.
2016-09-14 08:53:04
kelvint
2016-11-01 23:03:38
4 answers
266 views

PCB trace GSM antenna be affected by EMI

There is a PCB design with 3 SIM800 GSM modules sharing a external antenna. The external antenna is connected to the PCB via an antenna connector, and from that connector, the antenna signal is “sh... (See More)

nopphadon
2016-09-12 23:23:51
roman.200918715
2016-12-19 14:25:15
1 answers
377 views

How to add vias in Cadstar

I try to add a via in Cadstar and I think I can add a via with the add a via command manually. But I failed. What should I do? (See More)

Elhanafy
2016-09-11 21:18:43
don_peter
2016-09-13 21:18:43
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Search Results: 262 Threads,27 Pages