Invention Grant
- Patent Title: Semiconductor device and method of singulating thin semiconductor wafer on carrier along modified region within non-active region formed by irradiating energy
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Application No.: US15379178Application Date: 2016-12-14
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Publication No.: US09934998B2Publication Date: 2018-04-03
- Inventor: Byung Joon Han , Il Kwon Shim , Won Kyoung Choi
- 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 Brian M. Kaufman; Robert D. Atkins
- Main IPC: H01L21/00
- IPC: H01L21/00 ; H01L21/683 ; H01L23/544 ; H01L21/78 ; H01L23/00 ; H01L23/48

Abstract:
A semiconductor device comprises a carrier including an adhesive disposed over the carrier. The semiconductor device further comprises a semiconductor wafer including a plurality of semiconductor die separated by a non-active region. A plurality of bumps is formed over the semiconductor die. The semiconductor wafer is mounted to the carrier with the adhesive disposed around the plurality of bumps. Irradiated energy is applied to the non-active region to form a modified region within the non-active region. The semiconductor wafer is singulated along the modified region to separate the semiconductor die. The semiconductor wafer is singulated along the modified region by applying stress to the semiconductor wafer. The adhesive is removed from around the plurality of bumps after singulating the semiconductor wafer. The semiconductor wafer includes a plurality of semiconductor die comprising through silicon vias. The modified region optionally includes a plurality of vertically stacked modified regions.
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