Invention Grant
- Patent Title: Method of manufacturing printed circuit board with embedded electronic components positioned by using solder paste
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Application No.: US15146418Application Date: 2016-05-04
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Publication No.: US09974186B2Publication Date: 2018-05-15
- Inventor: Ming Yi Yeh , Shun Yueh Hsu , Kun Chi Chen , Hung Min Chen
- Applicant: UNITECH PRINTED CIRCUIT BOARD CORP.
- Applicant Address: TW New Taipei
- Assignee: UNITECH PRINTED CIRCUIT BOARD CORP.
- Current Assignee: UNITECH PRINTED CIRCUIT BOARD CORP.
- Current Assignee Address: TW New Taipei
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: TW104121090A 20150630
- Main IPC: H05K3/34
- IPC: H05K3/34 ; H05K1/18 ; H05K3/46 ; H05K1/02

Abstract:
A method of manufacturing a printed circuit board with embedded electronic components fixed by a solder paste includes: providing a carrier board with a copper foil layer on the carrier board, an insulating layer on the copper foil layer, and an opening on the insulating layer by laser; putting a solder paste into the opening to form a solder paste layer; performing a high-temperature reflow process of the electronic components on the solder paste layer until the solder paste layer is molten; curing the solder paste layer after cooling to fix the components to the center position of the opening; placing the copper foil layer below the electronic components and removing the solder paste layer; and performing copper plating and electroplating processes in an electroplating space to form a plating copper. The cohesion of the molten solder paste pulls the electronic components towards the center to eliminate position offset produced when the electronic components are installed.
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