Invention Grant
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
- Patent Title: Raised solder-mask-defined (SMD) solder ball pads for a laminate electronic circuit board
- Patent Title (中): 用于叠层电子电路板的凸起焊锡掩模定义(SMD)焊球垫
-
Application No.: US11867527Application Date: 2007-10-04
-
Publication No.: US07679190B2Publication Date: 2010-03-16
- Inventor: Tz-Cheng Chiu , Manjula N Variyam
- Applicant: Tz-Cheng Chiu , Manjula N Variyam
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Yingsheng Tung; Wade J. Brady, III; Frederick J. Telecky, Jr.
- Main IPC: H01L23/48
- IPC: H01L23/48

Abstract:
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.
Public/Granted literature
- US20080023834A1 Raised Solder-Mask-Defined (SMD) Solder Ball Pads For a Laminate Electronic Circuit Board Public/Granted day:2008-01-31
Information query
IPC分类: