Invention Grant
- Patent Title: Wafer point by point analysis and data presentation
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Application No.: US14936559Application Date: 2015-11-09
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Publication No.: US09934351B2Publication Date: 2018-04-03
- Inventor: Dermot Cantwell , Sathyendra Ghantasala
- 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: Lowenstein Sandler LLP
- Main IPC: G06F17/50
- IPC: G06F17/50 ; G03F7/20

Abstract:
A method for wafer point by point analysis includes receiving first recipe parameters for a first process recipe, second recipe parameters for a second process recipe, a first plurality of measurements of a plurality of locations on a first wafer processed using the first process recipe, and a second plurality of measurements of the plurality of locations on a second wafer processed using the second process recipe. A plurality of sensitivity values are calculated using the first and second values for the plurality of recipe parameters and the first and second plurality of measurements, each of the plurality of sensitivity values corresponding to one of the plurality of locations and representing a sensitivity to one of the plurality of recipe parameters. A graphical representation of a wafer is then provided that shows at least a subset of the first plurality of sensitivity values for the plurality of locations.
Public/Granted literature
- US20170132352A1 WAFER POINT BY POINT ANALYSIS AND DATA PRESENTATION Public/Granted day:2017-05-11
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