发明授权
US06433360B1 Structure and method of testing failed or returned die to determine failure location and type
失效
测试的结构和方法失败或返回模具以确定故障位置和类型
- 专利标题: Structure and method of testing failed or returned die to determine failure location and type
- 专利标题(中): 测试的结构和方法失败或返回模具以确定故障位置和类型
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申请号: US09231733申请日: 1999-01-15
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公开(公告)号: US06433360B1公开(公告)日: 2002-08-13
- 发明人: S. Gabriel R. Dosdos , Joel J. Orona , Daniel C. Nuez
- 申请人: S. Gabriel R. Dosdos , Joel J. Orona , Daniel C. Nuez
- 主分类号: H01L2358
- IPC分类号: H01L2358
摘要:
A structure and method for testing a failed integrated circuit device includes a ball grid array substrate with its heat sink removed to form a cavity where a failed bare die is to be placed. An adhesive tape is attached to the lower surface of the ball grid array substrate covering the cavity, and the die is placed into the cavity against the sticky side of the adhesive tape. Wire bonds are formed from necessary pads on the die to electrical conductors on the substrate and the cavity and bond wires are covered with epoxy. When the epoxy is cured, the adhesive tape is removed, thus exposing the back side of the die for visual inspection while under test.
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