Invention Grant
- Patent Title: Semiconductor integrated circuit device and method of manufacturing same
- Patent Title (中): 半导体集成电路器件及其制造方法
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Application No.: US12761350Application Date: 2010-04-15
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Publication No.: US08373270B2Publication Date: 2013-02-12
- Inventor: Takuro Homma , Katsuhiko Hotta , Takashi Moriyama
- Applicant: Takuro Homma , Katsuhiko Hotta , Takashi Moriyama
- Applicant Address: JP Kawasaki-shi
- Assignee: Renesas Electronics Corporation
- Current Assignee: Renesas Electronics Corporation
- Current Assignee Address: JP Kawasaki-shi
- Agency: Miles and Stockbridge P.C.
- Priority: JP2009-099689 20090416
- Main IPC: H01L23/48
- IPC: H01L23/48 ; H01L23/485

Abstract:
In the current manufacturing process of LSI, or semiconductor integrated circuit device, the step of assembling device (such as resin sealing step) is normally followed by the voltage-application test (high-temperature and high-humidity test) in an environment of high temperature (such as an approximate range from 85 to 130° C.) and high humidity (such as about 80% RH). For that test, the inventors of the present invention found the phenomenon of occurrence of separation of titanium nitride film as the anti-reflection film from upper film and of generation of cracks in the titanium nitride film at an edge part of upper surface of the aluminum-based bonding pad applied with a positive voltage during the high-temperature and high-humidity test caused by an electrochemical reaction due to moisture incoming through the sealing resin and the like to generate oxidation and bulging of the titanium nitride film. An invention of the present application is to remove the titanium nitride film over the pad in a ring or slit shape at peripheral area of the aluminum-based bonding pad.
Public/Granted literature
- US20100264414A1 SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE AND METHOD OF MANUFACTURING SAME Public/Granted day:2010-10-21
Information query
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