Thermal fatigue life of lead-free solder joint of Air-conditioner PCB (Printed Circuit Board) under the form of THT (Through Hole Technology) is studied.
本文对空调器印刷电路板(PCB)通孔插装形式无铅焊点的热疲劳寿命进行了研究。
Solder Bridging: Solder connecting, in most cases, misconnecting, two or more adjacent pads that come into contact to form a conductive path.
桥接：焊料连接，通常是导线间由焊料形成的多余的导电通路。
All of the three solder pastes could form plump and splendid solder point, and the appearance of Sn-Pb solder point was more regular and sleek.
三种焊锡膏均可形成饱满、光亮的焊点，锡铅焊点外观比无铅焊点更规整圆滑。
The experiment is conducted by selective laser heating and melting the thin solder layer and then preprinting it on CCL in order to form the matrix with solder pads.
实验通过选择性地对涂敷在CCL基板上的钎料进行激光加热并熔化，最后形成焊料凸点矩阵。
The solder glass is in a powdered form and is suspended in a liquid carrier for ease and accuracy of application.
为了便于使用和精确控制，焊料玻璃呈粉末状，并悬浮于液态载体中。
Put a lot of this kind particles together will soon to form a solid solder, which need the temperature rise to the melting point for remelting.
所以如果二次回焊的温度过高，还是可能造成第一面的焊点重新熔融，零件可能掉落的风险。
Put a lot of this kind particles together will soon to form a solid solder, which need the temperature rise to the melting point for remelting.
所以如果二次回焊的温度过高，还是可能造成第一面的焊点重新熔融，零件可能掉落的风险。
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