Invention Grant
- Patent Title: Method and apparatus for high pressure sensor device
- Patent Title (中): 高压传感器装置的方法和装置
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Application No.: US13371635Application Date: 2012-02-13
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Publication No.: US08686550B2Publication Date: 2014-04-01
- Inventor: William G. McDonald , Alexander M. Arayata , Philip H. Bowles , Stephen R. Hooper
- Applicant: William G. McDonald , Alexander M. Arayata , Philip H. Bowles , Stephen R. Hooper
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- Agent Jonathan N. Geld
- Main IPC: H01L23/02
- IPC: H01L23/02

Abstract:
A pressure sensor package is provided that reduces the occurrence of micro gaps between molding material and metal contacts that can store high-pressure air. The present invention provides this capability by reducing or eliminating interfaces between package molding material and metal contacts. In one embodiment, a control die is electrically coupled to a lead frame and then encapsulated in molding material, using a technique that forms a cavity over a portion of the control die. The cavity exposes contacts on the free surface of the control die that can be electrically coupled to a pressure sensor device using, for example, wire bonding techniques. In another embodiment, a region of a substrate can be encapsulated in molding material, using a technique that forms a cavity over a sub-portion of the substrate that includes contacts. A pressure sensor device can be electrically coupled to the exposed contacts.
Public/Granted literature
- US20130207207A1 METHOD AND APPARATUS FOR HIGH PRESSURE SENSOR DEVICE Public/Granted day:2013-08-15
Information query
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