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開關(guān)電源雙面板

請教:開關(guān)電源的雙面板中,地線走TOPLAYER好,還是走BOTTOMLAYER好?
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jacki_wang
LV.11
2
2006-03-01 09:10
基本上走BOTTOMLAYER的話比較有機(jī)會加裸銅.
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winfrey1
LV.6
3
2006-05-12 21:07
@jacki_wang
基本上走BOTTOMLAYER的話比較有機(jī)會加裸銅.
Wang'R ,What's the function of the bare copper foil?
3x
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jacki_wang
LV.11
4
2006-05-12 21:21
@winfrey1
Wang'R,What'sthefunctionofthebarecopperfoil?3x
tin the bare copper foil to reduce DC resistance and decrease the trace loss.
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winfrey1
LV.6
5
2006-05-12 21:32
@jacki_wang
tinthebarecopperfoiltoreduceDCresistanceanddecreasethetraceloss.
i see, 3x, it's said that tin has a poor conductivity than copper does.
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jacki_wang
LV.11
6
2006-05-12 21:46
@winfrey1
isee,3x,it'ssaidthattinhasapoorconductivitythancopperdoes.
Yes, u a right, but it should be better with tin.
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李紹波
LV.9
7
2006-07-26 11:35
暈死,,,,全是說英文的
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