Invention Application
- Patent Title: Method for making a micromechanical device by using a sacrificial substrate
- Patent Title (中): 通过使用牺牲基板制造微机械装置的方法
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Application No.: US10099314Application Date: 2002-03-15
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Publication No.: US20020132389A1Publication Date: 2002-09-19
- Inventor: Satyadev R. Patel , Andrew G. Huibers
- Applicant: REFLECTIVITY, INC., a Delaware corporation
- Applicant Address: CA Santa Clara
- Assignee: REFLECTIVITY, INC., a Delaware corporation
- Current Assignee: REFLECTIVITY, INC., a Delaware corporation
- Current Assignee Address: CA Santa Clara
- Main IPC: H01L021/00
- IPC: H01L021/00 ; H01L021/302 ; H01L021/461 ; H01L021/26

Abstract:
A method is disclosed for forming a micromechanical device. The method includes fully or partially forming one or more micromechanical structures multiple times on a first substrate. A second substrate is bonded onto the first substrate so as to cover the multiple areas each having one or more micromechanical structures, so as to form a substrate assembly. The substrate assembly is then separated into individual dies, each die having the one or more micromechanical structures held on a portion of the first substrate, with a portion of the second substrate bonded to the first substrate portion. Finally, the second substrate portion is removed from each die to expose the one or more micromechanical structures on the first substrate portion. The invention is also directed to a method for forming a micromechanical device, including: forming one or more micromechanical structures in one or more areas on a first substrate; bonding caps onto the first substrate so as to cover the one or more areas each having one or more micromechanical structures, so as to form a substrate assembly; after a period of time, removing the caps to expose the one or more micromechanical structures. During the period of time between bonding the caps and later removing the caps, the substrate assembly can be singulated, inspected, irradiated, annealed, die attached, shipped and/or stored.
Public/Granted literature
- US06900072B2 Method for making a micromechanical device by using a sacrificial substrate Public/Granted day:2005-05-31
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