Invention Grant
- Patent Title: Multi-layer stamp
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Application No.: US17125037Application Date: 2020-12-17
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Publication No.: US11318663B2Publication Date: 2022-05-03
- Inventor: Tanya Yvette Moore , Ronald S. Cok , David Gomez
- Applicant: X Display Company Technology Limited
- Applicant Address: IE Dublin
- Assignee: X Display Company Technology Limited
- Current Assignee: X Display Company Technology Limited
- Current Assignee Address: IE Dublin
- Agency: Choate, Hall & Stewart LLP
- Agent Michael D. Schmitt
- Main IPC: B29C33/38
- IPC: B29C33/38 ; B29C59/02 ; H01L23/00 ; H01L21/683 ; B41F17/00 ; B29C59/00 ; B29L31/34 ; B41F16/00 ; B29L7/00

Abstract:
A stamp for micro-transfer printing includes a support having a support stiffness and a support coefficient of thermal expansion (CTE). A pedestal layer is formed on the support, the pedestal layer having a pedestal layer stiffness that is less than the support stiffness and a pedestal layer coefficient of thermal expansion (CTE) that is different from the support coefficient of thermal expansion (CTE). A stamp layer is formed on the pedestal layer, the stamp layer having a body and one or more protrusions extending from the body in a direction away from the pedestal layer. The stamp layer has a stamp layer stiffness that is less than the support stiffness and a stamp layer coefficient of thermal expansion that is different from the support coefficient of thermal expansion.
Public/Granted literature
- US20210101329A1 MULTI-LAYER STAMP Public/Granted day:2021-04-08
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