- Patent Title: Post-lithography defect inspection using an e-beam inspection tool
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Application No.: US16044629Application Date: 2018-07-25
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Publication No.: US10578981B2Publication Date: 2020-03-03
- Inventor: Luciana Meli Thompson , Ekmini A. De Silva , Yasir Sulehria , Nelson Felix
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Agent Vazken Alexanian
- Main IPC: G03F7/20
- IPC: G03F7/20 ; H01L21/02 ; G03F7/16 ; C23C16/30 ; C23C16/40 ; C23C16/455 ; H01L21/67 ; H01L21/027 ; C23C16/56

Abstract:
Methods for post-lithographic inspection using an e-beam inspection tool of organic extreme ultraviolet sensitive (EUV) sensitive photoresists generally includes conformal deposition of a removable metal carboxide or metal carboxynitride onto the relief image. The conformal deposition of the metal carboxide or metal carboxynitride includes a low temperature vapor deposition process of less than about 100° C. to provide a coating thickness of less than about 5 nanometers. Subsequent to e-beam inspection, the metal carboxide or metal carboxynitride coating is removed using a wet stripping process. Once stripped, the wafer can continue on to further process fabrication without being a sacrificial wafer.
Public/Granted literature
- US20200033733A1 POST-LITHOGRAPHY DEFECT INSPECTION USING AN E-BEAM INSPECTION TOOL Public/Granted day:2020-01-30
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