All Questions
Tagged with manufacturing via
7
questions
2
votes
2
answers
120
views
Plating via without chemicals
In my lab we can mill and drill double sided PCBs. Holes are not plated. To create a via we usually use little copper rivets. Electroplating is out of the question because we don’t do any chemicals ...
- 31
1
vote
1
answer
103
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PCB design for Renesas' DA7212 audio codec
I'm designing my very first PCB. I managed to route all my components and I'm stuck at the last footprint - DA7212 from Renesas:
Those balls are both incredibly tiny and packed dense. I'd need a ...
- 33
4
votes
1
answer
189
views
Deliver high current through vias
There is a demand for a delivery of 3 A through several layers using vias.
Presented below in the picture is my PCB manufacturer's abilities regarding vias.
A single via can withstand 1.4 A. Are there ...
- 375
2
votes
2
answers
1k
views
Why is that vias are generally made of tungsten while contact is made using aluminum?
From this thread:
...
- 300
1
vote
0
answers
407
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Thermal reliefs for via-in-pad under BGA?
I'm doing the layout of a high-speed (Multi gigabit) system based on an FPGA with more than a thousand BGA pads and 0.8mm pitch on a 10-layer board. I'm using via in pads that will be copper-filled ...
- 2,612
3
votes
2
answers
2k
views
Many small via vs few bigger via
While I was designing a board I thought, if we want to make a better path for the current what is the best choise?
Small vias and big in numbers or fewer but with bigger hole?
- 2,053
21
votes
2
answers
14k
views
How are vias made commercially?
How are or were vias made commercially?
Wikipedia (http://en.wikipedia.org/wiki/Via_(electronics)) mentions
"The hole is made conductive by electroplating, or is lined with a tube or a rivet"
Can ...
- 418