Category:PCB PCB Design Rules

Group Administrators: 0 | Group Member: 199 | Group Threads: 289

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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How to make an irregular shape hole

I want to create an irregular shape hole. Could you have any suggestions?(view more)

cec021
2016/8/2 7:04:06
3 comments
737 views

How to chang all via and routing sizes at once?

There is a PCB design completed by Altium Designer, for which I want to increase via sizes. But there are too much of them, and changing all of them one by one will cost a long time. Is there any w...(view more)

Markus Schmitz
2016/8/1 16:35:17
1 comments
720 views

How to determine type of through-hole resistor?

Standard carbon through-hole resistors is familiar to us, but there are of course other types like wirewound, metal film, metal oxide, etc which we are not familiar. The trouble is, how do you identi...(view more)

Tom Wong-Cornall
2016/8/1 14:50:20
2 comments
722 views

We all know that plated-through hole is should be larger than lead diamater, but how much larger should it be to get good solder wetting?

Can anyone give me suggestions on how much clearance around the component lead I should have in order to get good solder wetting and adhesion.(view more)

Mike Sharkey
2016/8/1 9:21:13
3 comments
714 views

Can I use an internal layer as a heat bed if I want to warm my multilayer pcb?

Is it proper to use the internal layer as a heat bed? If not, any disadvantage?(view more)

Turchi Leonardo
2016/7/30 17:38:14
1 comments
876 views

PCB impedance calculator

I have to make a report for 4 different data bytes DDR3, making sure each signal bit trace has same impedance.But I find doing it manually will spend lot of time. Please give me some suggestions about...(view more)

carlos.pinto5
2016/7/30 14:25:39
2 comments
754 views

Pad size from technical drawings

what would the best drill size and pad size for 0.56/0.36 and spacing for 2.80/2.40?(view more)

Anders Appelgren
2016/7/30 9:04:21
4 comments
561 views

The procedure of PCB design

What is the way of developing PCB of a circuit?(view more)

Chester
2016/7/20 13:41:19
3 comments
1037 views

The panelization of a Metal Core pcb

What is a good way to panelise a Metal Core pcb, V-scoring or Tab-routing?(view more)

Peter Sleeman
2016/7/17 9:33:12
1 comments
611 views

Problem of PCB design

There is a 0.5mm through hole, and 1.5mm pad in my PCB, but the manufacturer told me the cost need to increase because it is difficult to fabricate. Why it is hard to fabricate?(view more)

ALuKa
2016/7/15 13:42:03

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