发明名称 Electrical measurements of the profile of semiconductor devices during their manufacturing process
摘要 A method for measuring the width and profile of structures in a semiconductor wafer comprises the step of constructing test structures on the wafer shaped to function as moats for confining electrically conductive liquid. The moats have an elongated shape. By measuring the electrical resistance exhibited by the liquid within the moat, the dimensions of the moat and, thus, the other structures on the wafer can be measured. In an alternative embodiment, the conductive liquid is used to facilitate electrical contact to the various structures formed in the wafer.
申请公布号 US4978923(A) 申请公布日期 1990.12.18
申请号 US19900525424 申请日期 1990.05.17
申请人 MALTIEL, RON 发明人 MALTIEL, RON
分类号 G01B7/14 主分类号 G01B7/14
代理机构 代理人
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