- Patent Title: Semiconductor device and method of controlling warpage during LAB
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Application No.: US17447001Application Date: 2021-09-07
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Publication No.: US11688718B2Publication Date: 2023-06-27
- Inventor: Wagno Alves Braganca, Jr. , KyungOe Kim
- Applicant: STATS ChipPAC Pte. Ltd.
- Applicant Address: SG Singapore
- Assignee: STATS ChipPAC Pte. Ltd.
- Current Assignee: STATS ChipPAC Pte. Ltd.
- Current Assignee Address: SG Singapore
- Agency: Patent Law Group: Atkins and Associates, P.C.
- Agent Robert D. Atkins
- Main IPC: H01L21/683
- IPC: H01L21/683 ; H01L23/00 ; H01L21/78

Abstract:
A semiconductor device has a semiconductor die and a support tape disposed over a back surface of the semiconductor die opposite an active surface of the semiconductor die. A portion of the back surface of the semiconductor wafer is removed to reduce its thickness. The semiconductor die is part of a semiconductor wafer, and the wafer is singulated to provide the semiconductor die with the support tape disposed on the back surface of the semiconductor die. The support tape can be a polyimide tape. A dicing tape is disposed over the support tape. The semiconductor die is disposed over a substrate. A laser emission is projected onto the semiconductor die to bond the semiconductor die to the substrate. The support tape provides stress relief to avoid warpage of the semiconductor die during the laser emission. The support tape is removed from the back surface of the semiconductor die.
Public/Granted literature
- US20230077132A1 Semiconductor Device and Method of Controlling Warpage During LAB Public/Granted day:2023-03-09
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