Invention Grant
- Patent Title: Leadless package system having external contacts
- Patent Title (中): 无引线封装系统具有外部触点
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Application No.: US11964567Application Date: 2007-12-26
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Publication No.: US07993979B2Publication Date: 2011-08-09
- Inventor: Byung Tai Do , Linda Pei Ee Chua , Heap Hoe Kuan
- Applicant: Byung Tai Do , Linda Pei Ee Chua , Heap Hoe Kuan
- Applicant Address: SG Singapore
- Assignee: Stats Chippac Ltd.
- Current Assignee: Stats Chippac Ltd.
- Current Assignee Address: SG Singapore
- Agent Mikio Ishimaru
- Main IPC: H05K3/34
- IPC: H05K3/34 ; H05K3/38 ; H01L23/28 ; H01L21/48 ; H01L23/31

Abstract:
A leadless package system includes: providing a chip carrier having indentations defining a pattern for a protrusion for external contact terminals; placing an external coating layer in the indentations in the chip carrier; layering a conductive layer on top of the external coating layer; depositing an internal coating layer on the conductive layer; patterning the internal coating layer and the conductive layer to define external contact terminals with a T-shape profile; connecting an integrated circuit die to the external contact terminals; encapsulating the integrated circuit die and external contact terminals; and separating the chip carrier from the external coating layer.
Public/Granted literature
- US20090166824A1 LEADLESS PACKAGE SYSTEM HAVING EXTERNAL CONTACTS Public/Granted day:2009-07-02
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