Invention Grant
- Patent Title: Deflectable microstructure and method of manufacturing the same through bonding of wafers
- Patent Title (中): 可偏转的微结构及其制造方法通过晶片的结合
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Application No.: US10504714Application Date: 2003-02-14
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Publication No.: US07172911B2Publication Date: 2007-02-06
- Inventor: Edvard Kälvesten , Thorbjörn Ebefors , Niklas Svedin , H{dot over (a)}kan Westin
- Applicant: Edvard Kälvesten , Thorbjörn Ebefors , Niklas Svedin , H{dot over (a)}kan Westin
- Applicant Address: SE Jarfalla
- Assignee: Silex Microsystems AB
- Current Assignee: Silex Microsystems AB
- Current Assignee Address: SE Jarfalla
- Agency: Young & Thompson
- International Application: PCT/SE03/00252 WO 20030214
- International Announcement: WO03/068669 WO 20030821
- Main IPC: H01L21/00
- IPC: H01L21/00

Abstract:
A method of making a deflectable, free hanging micro structure having at least one hinge member, the method includes the steps of providing a first sacrificial wafer having a single crystalline material constituting material forming the micro structure. A second semiconductor wafer including necessary components for forming the structure in cooperation with the first wafer is provided. Finite areas of a structured bonding material is provided, on one or both of the wafers at selected locations, the finite areas defining points of connection for joining the wafers. The wafers are bonded using heat and optionally pressure. Sacrificial material is etched away from the sacrificial wafer, patterning the top wafer by lithography is performed to define the desired deflectable microstructures having hinges, and subsequently silicon etch to make the structures.
Public/Granted literature
- US20050124159A1 Deflectable microstructure and method of manufacturing the same through bonding of wafers Public/Granted day:2005-06-09
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