Invention Grant
- Patent Title: Thin quad flat package with no leads (QFN) fabrication methods
- Patent Title (中): 薄型扁平封装,无引线(QFN)制造方法
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Application No.: US12109635Application Date: 2008-04-25
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Publication No.: US07713784B2Publication Date: 2010-05-11
- Inventor: Xiaochun Tan , Zhining Li , Xiaolan Jiang
- Applicant: Xiaochun Tan , Zhining Li , Xiaolan Jiang
- Applicant Address: CN Shanghai
- Assignee: Shanghai Kaihong Technology Co., Ltd.
- Current Assignee: Shanghai Kaihong Technology Co., Ltd.
- Current Assignee Address: CN Shanghai
- Agency: Fountainhead Law Group P.C.
- Agent Chad R. Walsh
- Priority: CN200810034572 20080313
- Main IPC: H01L21/00
- IPC: H01L21/00

Abstract:
Embodiments of the present invention include a method of packaging semiconductor devices. The method comprises the steps of molding a surface of a wafer, sawing the wafer into individual devices, attaching the individual semiconductor device to an adhesive surface, molding the exposed surface, and sawing the wafer into individual semiconductor devices. The step of molding forms a continuous molded layer. The step of sawing results in each individual semiconductor having a molded layer. This molded layer corresponds to a portion of the continuous molded layer. The step of attaching includes attaching the molded layer of the individual semiconductor devices to the adhesive surface. The step of molding the exposed area includes molding an exposed area above the adhesive surface. This forms a solid expanse of material. The step of sawing the wafer into individual semiconductor devices includes sawing the solid expanse of material.
Public/Granted literature
- US20090233401A1 THIN QUAD FLAT PACKAGE WITH NO LEADS (QFN) FABRICATION METHODS Public/Granted day:2009-09-17
Information query
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