Whether fatigue of solder joint and the location of the chip are related to the curvature and torsional curvature of PCB are discussed.

 
  • 芯片焊點(diǎn)壽命的長(cháng)短和芯片所處位置的曲率和扭率都有關(guān)系,但是扭率對壽命的影響總是被忽略。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan