发明授权
- 专利标题: Film for flip chip type semiconductor back surface
- 专利标题(中): 倒装芯片型半导体背面薄膜
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申请号: US12975893申请日: 2010-12-22
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公开(公告)号: US08704382B2公开(公告)日: 2014-04-22
- 发明人: Naohide Takamoto , Takeshi Matsumura , Goji Shiga
- 申请人: Naohide Takamoto , Takeshi Matsumura , Goji Shiga
- 申请人地址: JP Osaka
- 专利权人: Nitto Denko Corporation
- 当前专利权人: Nitto Denko Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2009-292767 20091224; JP2010-253031 20101111
- 主分类号: H01L23/48
- IPC分类号: H01L23/48 ; H01L21/44
摘要:
The present invention provides a film for flip chip type semiconductor back surface, which is to be formed on a back surface of a semiconductor element flip-chip connected on an adherend, the film including a wafer adhesion layer and a laser marking layer, in which the wafer adhesion layer has a light transmittance of 40% or more in terms of a light having a wavelength of 532 nm and the laser marking layer has a light transmittance of less than 40% in terms of a light having a wavelength of 532 nm.
公开/授权文献
- US20110156279A1 FILM FOR FLIP CHIP TYPE SEMICONDUCTOR BACK SURFACE 公开/授权日:2011-06-30
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