发明名称 Method for manufacturing a reclaimable test pattern wafer for CMP applications
摘要 In a method for manufacturing a test pattern wafer, a silicon substrate is provided. A sacrificial oxide layer is deposited over the silicon substrate, and simulated transistor structure test features are fabricated into and on the sacrificial oxide layer. Chemical mechanical polishing characterization is performed using the test pattern wafer which provides data for the characterization of the chemical mechanical polishing. The sacrificial oxide layer is then stripped along with the simulated transistor structure test features, allowing the silicon substrate to be reclaimed and to be used in the fabrication of subsequent test pattern wafers.
申请公布号 US6809031(B1) 申请公布日期 2004.10.26
申请号 US20000752610 申请日期 2000.12.27
申请人 LAM RESEARCH CORPORATION 发明人 LACY MICHAEL S.
分类号 H01L21/3105;H01L23/544;(IPC1-7):H01L21/302 主分类号 H01L21/3105
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