发明名称 SOLDER VOID REDUCTION ON CIRCUIT BOARDS
摘要 There is disclosed a method, system, and screen for reducing solder voids on circuit boards. In an embodiment, there is provided a method of reducing solder voids on a circuit board, comprising: locating via holes provided at a conductive landing pad; and covering at least some of the via holes with a coating, whereby gases from the covered via holes are prevented from expanding and forming voids. In another embodiment, the method further comprises covering the location of at least some of the via holes in a pattern of strips, whereby more of the via holes may be covered by the coating while reducing areas of the conductive landing pad covered by the coating. In another embodiment, the coating and removal process may be performed at the same time as when all other areas of the circuit board are coated and removed, such that a separate manufacturing step is not required.
申请公布号 CA2652107(C) 申请公布日期 2014.04.01
申请号 CA20092652107 申请日期 2009.01.30
申请人 RESEARCH IN MOTION LIMITED 发明人 KHAN, ATIQ
分类号 H05K3/22;H05K13/00 主分类号 H05K3/22
代理机构 代理人
主权项
地址