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4 layer board with 0.12mm via,Serpentine line impedance

9/8/2015

 

We have a few customers are Universities in US,Singapore,UK and Australia.Here is a project for university as well .

Here is a set of 4 layer ,3 designs per set. Gold thickness :5 U'' (0.13um),min hole 0.13mm.
BGA pad to hole 4.25mil, board thickness 1.4mm,Serpentine line impedance

Impedance control
single ended: 24 mil ,50 ohm +/-8%. 
Differential impedance:9/7 mil,100 ohm +/-8%
Picture
Serpentine line impedance
Serpentine line impedance
图片
0.12mm via,BGA. board 15*13m

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