发明授权
US07679190B2 Raised solder-mask-defined (SMD) solder ball pads for a laminate electronic circuit board
有权
用于叠层电子电路板的凸起焊锡掩模定义(SMD)焊球垫
- 专利标题: Raised solder-mask-defined (SMD) solder ball pads for a laminate electronic circuit board
- 专利标题(中): 用于叠层电子电路板的凸起焊锡掩模定义(SMD)焊球垫
-
申请号: US11867527申请日: 2007-10-04
-
公开(公告)号: US07679190B2公开(公告)日: 2010-03-16
- 发明人: Tz-Cheng Chiu , Manjula N Variyam
- 申请人: Tz-Cheng Chiu , Manjula N Variyam
- 申请人地址: US TX Dallas
- 专利权人: Texas Instruments Incorporated
- 当前专利权人: Texas Instruments Incorporated
- 当前专利权人地址: US TX Dallas
- 代理商 Yingsheng Tung; Wade J. Brady, III; Frederick J. Telecky, Jr.
- 主分类号: H01L23/48
- IPC分类号: H01L23/48
摘要:
A raised solder-mask-defined (SMD) pad configured for receiving a solder ball on a laminate electronic circuit board and a method of creating the raised SMD pad on a laminate electronic circuit board. The method may comprise forming a base bump, covering the base bump with a conductive bump layer and layering a surrounding material over an extended edge of the conductive bump layer. The surrounding material is patterned to expose a pad face and of a portion of the sides of the conductive bump layer, such that the pad face is disposed above the surface of the surrounding material. The surrounding material may be patterned by a photolithography operation or alternatively, a laser-drill operation.
公开/授权文献
信息查询
IPC分类: