Invention Grant
US07678611B2 Spacer die structure and method for attaching 有权
垫片模具结构及附着方法

  • Patent Title: Spacer die structure and method for attaching
  • Patent Title (中): 垫片模具结构及附着方法
  • Application No.: US11464631
    Application Date: 2006-08-15
  • Publication No.: US07678611B2
    Publication 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
Spacer die structure and method for attaching
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.
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