发明授权
- 专利标题: Ball grid array package employing raised metal contact rings
- 专利标题(中): 使用凸起金属接触环的球栅阵列封装
-
申请号: US837530申请日: 1997-04-21
-
公开(公告)号: US5841191A公开(公告)日: 1998-11-24
- 发明人: Chok J. Chia , Qwai H. Low , Maniam Alagaratnam
- 申请人: Chok J. Chia , Qwai H. Low , Maniam Alagaratnam
- 申请人地址: CA Milpitas
- 专利权人: LSI Logic Corporation
- 当前专利权人: LSI Logic Corporation
- 当前专利权人地址: CA Milpitas
- 主分类号: H01L23/12
- IPC分类号: H01L23/12 ; H01L21/60 ; H01L23/50 ; H01L23/52 ; H01L23/48
摘要:
A ball grid array package in which one or more conductive rings are positioned on a surface of the package substrate along with solder bond contacts on the surface of the substrate to facilitate the interconnection of wire bonds to an integrated circuit chip on the surface of the substrate. The use of rings allows for better distribution of power to the chip since a plurality of wires can be connected between the chip and the conductive rings for power distribution. The rings create a different shelf for the power and ground bonds on the substrate, and by providing a vertical separation between the surfaces of the rings and bonding pads on the surface of the substrate more bonds in the package can be accommodated.
公开/授权文献
- US5219267A Method for salvaging the contents of a leaking drum 公开/授权日:1993-06-15
信息查询
IPC分类: