Invention Grant
- Patent Title: Methodology for early detection of TS to PC short issue
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Application No.: US14989109Application Date: 2016-01-06
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Publication No.: US10451666B2Publication Date: 2019-10-22
- Inventor: Ming Lei
- Applicant: GLOBALFOUNDRIES Inc.
- Applicant Address: KY Grand Cayman
- Assignee: GLOBALFOUNDRIES INC.
- Current Assignee: GLOBALFOUNDRIES INC.
- Current Assignee Address: KY Grand Cayman
- Agency: Ditthavong & Steiner, P.C.
- Main IPC: G01R31/28
- IPC: G01R31/28 ; H01L21/66 ; H01L27/11 ; G01R31/27 ; G01R31/307

Abstract:
Methods for enabling in-line detection of TS-PC short defects at the TS-CMP processing stage are provided. Embodiments include providing a semiconductor substrate, the substrate having a plurality of partially formed MOSFET devices; performing a first defect inspection on the substrate, the first inspection including ACC; identifying one or more BVC candidates on the substrate based on the first inspection; performing a second defect inspection on the one or more BVC candidates, the second inspection performed without ACC; and detecting one or more BVC defects on the substrate based on the one or more BVC candidates appearing during both the first and second inspections.
Public/Granted literature
- US20170192050A1 METHODOLOGY FOR EARLY DETECTION OF TS TO PC SHORT ISSUE Public/Granted day:2017-07-06
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