发明名称 Pattern for improved visual inspection of semiconductor devices
摘要 A semiconductor structure is disclosed that enhances quality control inspection of device. The structure includes a substrate having at least one planar face, a first metal layer on the planar face, and covering some, but not all of the planar face in a first predetermined geometric pattern, and a second metal layer on the planar face, and covering some, but not all of the planar face in a second geometric pattern that is different from the first geometric pattern. A quality control method for manufacturing a semiconductor device is also disclosed. The method includes the steps of placing a first metal layer on a semiconductor face of a device in a first predetermined geometric pattern, placing a second metal layer on the same face of the device as the first layer and in a second predetermined geometric pattern that is different from the first geometric pattern, and then inspecting the device to identify the presence or absence of one or both of the patterns on the face.
申请公布号 US6903446(B2) 申请公布日期 2005.06.07
申请号 US20010045766 申请日期 2001.10.23
申请人 CREE, INC. 发明人 TUTTLE RALPH C.;PLUNKET CHRISTOPHER SEAN;SLATER, JR. DAVID B.;NEGLEY GERALD H.;SCHNEIDER THOMAS P.
分类号 H01L21/66;H01L23/482;H01L23/544;H01L33/00;(IPC1-7):H01L37/035 主分类号 H01L21/66
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