Invention Grant
- Patent Title: Post bump passivation for soft error protection
- Patent Title (中): 后凸钝化用于软错误保护
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Application No.: US10908084Application Date: 2005-04-27
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Publication No.: US07348210B2Publication Date: 2008-03-25
- Inventor: Timothy H. Daubenspeck , Jeffrey Peter Gambino , Christopher David Muzzy , Wolfgang Sauter , Edmund Juris Sprogis
- Applicant: Timothy H. Daubenspeck , Jeffrey Peter Gambino , Christopher David Muzzy , Wolfgang Sauter , Edmund Juris Sprogis
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Schmeiser, Olsen & Watts
- Agent William D. Sabo
- Main IPC: H01L21/00
- IPC: H01L21/00

Abstract:
A structure and a method for forming the same. The method includes (a) providing a structure which includes (i) a dielectric layer, (ii) an electrically conducting bond pad on and in direct physical contact with the dielectric layer top surface, (iii) a first passivation layer on the dielectric layer top surface and on the electrically conducting bond pad, wherein the first passivation layer comprises a first hole directly above the electrically conducting bond pad, and (iv) an electrically conducting solder bump filling the first hole and electrically coupled to the electrically conducting bond pad; and (b) forming a second passivation layer on the first passivation layer, wherein second passivation layer is in direct physical contact with the electrically conducting solder bump, and wherein the electrically conducting solder bump is exposed to a surrounding ambient immediately after said forming the second passivation layer is performed.
Public/Granted literature
- US20060246703A1 POST BUMP PASSIVATION FOR SOFT ERROR PROTECTION Public/Granted day:2006-11-02
Information query
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