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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The reason of PCBs have big interfaces

Although the lines leaving the IC in the middle start fairly close to each other, they are significantly separated through the edge of the PCB. The width of and spacing between the leaving lines are ... (See More)

Jeronimo F Atencio
2016-09-10 10:54:31
protocad
2016-10-02 20:48:49
1 answers
202 views

Is there a way to lock footprint pad changes in PCB while reload the netlist?

I changed pad net name in PCBnew, but the change reverted when I reload the netlist. Is there a way to lock the changed name so that they will not reverse? (See More)

Ibrahim ARI
2016-09-08 11:06:53
Eden
2016-09-14 02:22:08
2 answers
193 views

How to decide the capacitor drill and pad size?

The lectrolyte capacitor hole diameter is 0.6mm, what the drill hole size and pad outer size should I decide? (See More)

Juan Pablo Vales
2016-09-06 15:00:10
Terry Lenny
2017-01-08 09:28:04
2 answers
225 views

Ruleset of PCB design

I am using Altium Designner to learn PCB design having a basic question about PCB Rule set. Rule set is defined by the Altium, but can we edit the rule set according to our priorities? (See More)

Alex Alfonso
2016-08-30 23:28:30
Agustin
2016-12-07 17:11:39
3 answers
287 views

pcb used for High Power LEDs

With aluminum pcb, it can't transfer enough heat to cool down the temperature.I thought about using a ceramic pcb. Does anyone have experience with ceramic pcbs? Another question is that is there a... (See More)

Bartosz Orzechowski
2016-08-26 17:07:49
Jeff Hanenkrat
2016-12-09 16:30:16
1 answers
263 views

Would you like to offer me some advices on my first PCB design?

Actually,I've already finished my first PCB design by Eagle.I also expect my design can make the noise as low as possible. I wonder if someone is willing to check my design and find some mistakes from... (See More)

soulrevival
2016-08-25 15:40:16
Dick
2016-08-27 15:40:16
2 answers
219 views

Sponge way for etching pcbs?

I have seen a way that people just poured a small amount of etchant over the pcb and rubbed the board with a sponge. I want to know can it work. (See More)

Garry Thorn
2016-08-24 09:12:16
uooa
2016-11-18 05:27:16
1 answers
227 views

Why other people's trace widths are smaller than my?

I use the calculators to find I have width values of around 1mm, or 1.7mm. But I've found out that some people use tracks of only 6mils. Why other people's trace widths are smaller than my? (See More)

Sebastien CRETENET
2016-08-22 10:40:28
Juan Matte
2016-08-24 10:40:28
1 answers
194 views

To do panelization

Any third-party PCB design software that can combine gerber files to do panelization? (See More)

Tsvetan
2016-08-21 20:21:34
petrstudeny
2016-08-23 20:21:34
2 answers
224 views

Questions about High Speed PCB impedance

When designing a high speed digital design including an FPGA and GSPS A/D interfaced with multi-gigabit/s serial ports. I have some questions like following: 1.When I use tools to calculate the imp... (See More)

Richard Baggaley
2016-08-18 22:34:22
va2ss
2016-12-04 04:18:41
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Search Results: 262 Threads,27 Pages