Invention Grant
- Patent Title: Spacer die structure and method for attaching
- Patent Title (中): 垫片模具结构及附着方法
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Application No.: US11464631Application Date: 2006-08-15
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Publication No.: US07678611B2Publication Date: 2010-03-16
- Inventor: Seung Wook Park
- Applicant: Seung Wook Park
- Applicant Address: US CA Fremont
- Assignee: ChipPAC, Inc.
- Current Assignee: ChipPAC, Inc.
- Current Assignee Address: US CA Fremont
- Agent Robert D. Atkins
- Main IPC: H01L21/50
- IPC: H01L21/50

Abstract:
A semiconductor spacer structure comprises in order a backgrinding tape layer, a spacer adhesive layer, a semiconductor spacer layer, an optional second spacer adhesive layer, a dicing tape layer. In a first method a spacer wafer having first and second sides, a backgrinding tape layer and a spacer adhesive layer between the first side and the backgrinding tape layer, is obtained. The second side is background and secured to a dicing tape. The backgrinding tape is removed and the resulting structure is diced to create spacer/adhesive die structures. A second method backgrinds the second side with the backgrinding tape layer at the first side. A protective cover layer is secured to the second side with a spacer adhesive layer therebetween. The backgrinding tape layer is removed and the remaining structure is secured to a dicing tape with the protective cover layer exposed. The protective cover layer is removed and the resulting structure is diced thereby creating spacer/adhesive die structures. The thickness of the second spacer adhesive layer may be selected to accommodate an uneven support surface.
Public/Granted literature
- US20060292831A1 Spacer Die Structure and Method for Attaching Public/Granted day:2006-12-28
Information query
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