发明名称 Package substrate having electrically connecting structure
摘要 A package substrate having an electrically connecting structure are provided. The package substrate include: a package substrate substance with at least a surface having a plurality of electrically connecting pads formed thereon, allowing an insulating protective layer to be formed on the surface of the package substrate substance and the electrically connecting pads and formed with a plurality of openings corresponding in position to the electrically connecting pads so as to expose a portion of the electrically connecting pads, respectively; and a metal layer provided on an exposed portion of the electrically connecting pads, walls of the openings of the insulating protective layer, and a circular portion of the insulating protective layer encircling each of the openings thereof, and provided with a slope corresponding in position to a bottom rim of each of the openings. Accordingly, solder bleeding and short circuits are prevented.
申请公布号 US8022530(B2) 申请公布日期 2011.09.20
申请号 US20080265305 申请日期 2008.11.05
申请人 UNIMICRON TECHNOLOGY CORP. 发明人 SHIH CHAO-WEN
分类号 H01L23/48 主分类号 H01L23/48
代理机构 代理人
主权项
地址