Invention Grant
US07780811B2 Dicing die-bonding film, method of fixing chipped work and semiconductor device
有权
切割芯片接合膜,切割工件的固定方法和半导体器件
- Patent Title: Dicing die-bonding film, method of fixing chipped work and semiconductor device
- Patent Title (中): 切割芯片接合膜,切割工件的固定方法和半导体器件
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Application No.: US11671982Application Date: 2007-02-06
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Publication No.: US07780811B2Publication Date: 2010-08-24
- Inventor: Takeshi Matsumura , Masaki Mizutani , Sadahito Misumi
- Applicant: Takeshi Matsumura , Masaki Mizutani , Sadahito Misumi
- Applicant Address: JP Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Osaka
- Agency: Knobbe Martens Olson & Bear LLP
- Priority: JP2003-152659 20030529
- Main IPC: B29C65/50
- IPC: B29C65/50 ; B29C65/52 ; B29C65/56 ; B32B37/04 ; B32B37/10 ; B32B37/12 ; B32B37/14 ; B32B37/26 ; B32B38/10 ; B29C65/02 ; B32B37/06 ; B32B37/18 ; B32B37/28

Abstract:
The dicing die-bonding film of this invention comprises a pressure-sensitive adhesive layer (2) on a supporting base material (1) and a die-bonding adhesive layer (3) on the pressure-sensitive adhesive layer (2), wherein a releasability in an interface between the pressure-sensitive adhesive layer (2) and the die-bonding adhesive layer (3) is different between an interface (A) corresponding to a work-attaching region (3a) in the die-bonding adhesive layer (3) and an interface (B) corresponding to a part or the whole of the other region (3b), and the releasability of the interface (A) is higher than the releasability of the interface (B). According to this invention, there can be provided a dicing die-bonding film excellent in balance between retention in dicing a work and releasability in releasing its diced chipped work together with the die-bonding adhesive layer.
Public/Granted literature
- US20070137782A1 DICING DIE-BONDING FILM, METHOD OF FIXING CHIPPED WORK AND SEMICONDUCTOR DEVICE Public/Granted day:2007-06-21
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