Invention Grant
- Patent Title: Localized stress modulation by implant to back of wafer
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Application No.: US17396101Application Date: 2021-08-06
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Publication No.: US12217974B2Publication Date: 2025-02-04
- Inventor: Sony Varghese , Pradeep Subrahmanyan , Dennis Rodier , Kyuha Shim
- Applicant: Applied Materials, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Applied Materials, Inc.
- Current Assignee: Applied Materials, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: KDW FIRM PLLC
- Main IPC: H01L21/3115
- IPC: H01L21/3115 ; H01J37/147 ; H01J37/304 ; H01J37/317 ; H01L21/66

Abstract:
Embodiments herein are directed to localized stress modulation by implanting a first side of a substrate to reduce in-plane distortion along a second side of the substrate. In some embodiments, a method may include providing a substrate, the substrate comprising a first main side opposite a second main side, wherein a plurality of features are disposed on the first main side, performing a metrology scan to the first main side to determine an amount of distortion to the substrate due to the formation of the plurality of features, and depositing a stress compensation film along the second main side of the substrate, wherein a stress and a thickness of the stress compensation film is determined based on the amount of distortion to the substrate. The method may further include directing ions to the stress compensation film in an ion implant procedure.
Public/Granted literature
- US20220344171A1 LOCALIZED STRESS MODULATION BY IMPLANT TO BACK OF WAFER Public/Granted day:2022-10-27
Information query
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