Invention Grant
- Patent Title: Epitaxial lift off systems and methods
- Patent Title (中): 外延提升系统和方法
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Application No.: US14281386Application Date: 2014-05-19
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Publication No.: US09381731B2Publication Date: 2016-07-05
- Inventor: Brian Brown , Brian Burrows , David Berkstressor , Gang He , Thomas J Gmitter
- Applicant: ALTA DEVICES, INC.
- Applicant Address: US CA Sunnyvale
- Assignee: ALTA DEVICES, INC.
- Current Assignee: ALTA DEVICES, INC.
- Current Assignee Address: US CA Sunnyvale
- Agency: Arent Fox LLP
- Main IPC: B32B43/00
- IPC: B32B43/00 ; H01L21/67 ; H01L21/677 ; H01L21/78 ; H01L31/18

Abstract:
Epitaxial lift off systems and methods are presented. In one embodiment a tape is disposed on the opposite side of the epitaxial material than the substrate is used to hold the epitaxial material during the etching and removal steps of the ELO process. In various embodiments, the apparatus for removing the ELO film from the substrates without damaging the ELO film may include an etchant reservoir, substrate handling and tape handling mechanisms, including mechanisms to manipulate (e.g., cause tension, peel, widen the etch gap, etc.) the lift off component during the lift off process.
Public/Granted literature
- US20140251547A1 EPITAXIAL LIFT OFF SYSTEMS AND METHODS Public/Granted day:2014-09-11
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