Invention Grant
- Patent Title: Pressure-activated electrical interconnection by micro-transfer printing
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Application No.: US15830645Application Date: 2017-12-04
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Publication No.: US10163735B2Publication Date: 2018-12-25
- Inventor: Christopher Andrew Bower , Ronald S. Cok , Matthew Meitl , Carl Ray Prevatte, Jr.
- Applicant: X-Celeprint Limited
- Applicant Address: IE Cork
- Assignee: X-Celeprint Limited
- Current Assignee: X-Celeprint Limited
- Current Assignee Address: IE Cork
- Agency: Choate, Hall & Stewart LLP
- Agent William R. Haulbrook; Michael D. Schmitt
- Main IPC: H01L21/66
- IPC: H01L21/66 ; H01L33/56 ; H01L33/62 ; H01L23/00 ; H01L25/00 ; H01L27/12 ; H01L51/00 ; H01L27/32 ; H01L51/10 ; H01L51/52

Abstract:
A printed electrical connection structure includes a substrate having one or more electrical connection pads and a micro-transfer printed component having one or more connection posts. Each connection post is in electrical contact with a connection pad. A resin is disposed between and in contact with the substrate and the component. The resin has a reflow temperature less than a cure temperature. The resin repeatedly flows at the reflow temperature when temperature-cycled between an operating temperature and the reflow temperature but does not flow after the resin is exposed to a cure temperature. A solder can be disposed on the connection post or the connection pad. After printing and reflow, the component can be tested and, if the component fails, another component is micro-transfer printed to the substrate, the resin is reflowed again, the other component is tested and, if it passes the test, the resin is finally cured.
Public/Granted literature
- US20180090394A1 PRESSURE-ACTIVATED ELECTRICAL INTERCONNECTION BY MICRO-TRANSFER PRINTING Public/Granted day:2018-03-29
Information query
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