Invention Application
- Patent Title: Process-robust alignment mark structure for semiconductor wafers
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Application No.: US10303501Application Date: 2002-11-22
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Publication No.: US20040099963A1Publication Date: 2004-05-27
- Inventor: Karen L. Holloway , Andrew Lu , Qiang Wu
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Applicant Address: NY ARMONK
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: NY ARMONK
- Main IPC: H01L023/544
- IPC: H01L023/544

Abstract:
An alignment mark structure for use upon a semiconductor substrate is disclosed. In an exemplary embodiment, the alignment mark structure includes a plurality of segments arranged in an alignment pattern, with each of the plurality of segments being formed from a base pattern created on the substrate. The base pattern includes a plurality of sizes, wherein each of the plurality of sizes of the base pattern is repeated throughout an entire length of each of the plurality of segments.
Public/Granted literature
- US06803668B2 Process-robust alignment mark structure for semiconductor wafers Public/Granted day:2004-10-12
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