Invention Grant
- Patent Title: Multilayer screen printing stencil
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Application No.: US17010952Application Date: 2020-09-03
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Publication No.: US11576266B2Publication Date: 2023-02-07
- Inventor: Jia Yu Zheng , WeiFeng Zhang , YanLong Hou , Guo Wei , Zhipeng Wang , Miao Zhang
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Jeffrey M. Ingalls
- Main IPC: B41N1/24
- IPC: B41N1/24 ; H05K3/12 ; H05K3/34 ; B41M1/12

Abstract:
A method of forming solder paste on an object is provided. The method includes providing a multilayered stencil, each stencil layer having an aperture formed therethrough from a top surface of the respective stencil layer to a bottom surface of the stencil layer. The method also includes applying the stencil to a surface of the object. The method also includes filling a void space formed by a combination of the apertures in the stencil layers with solder paste. The method also includes removing the stencil layers in a sequential manner to leave the solder paste.
Public/Granted literature
- US20220071017A1 MULTILAYER SCREEN PRINTING STENCIL Public/Granted day:2022-03-03
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