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发明名称
积体电路制造过程中之导电层研磨法
摘要
在积体电路制造过程中,沟渠(184)系形成介电层(170)中,再于其上沈积金属(如钨或铜)。金属(194)系以研磨程序(如化学机械研磨CMP)自介电层之上表面移除,而沟渠中之金属仍然存在。本发明系发现在研磨程序中,结构之磨损并非强烈取决于该结构之尺寸,因此,大结构(440)之磨损,即可藉由测量较小测试结构(450)之磨损来估量。测试结构之磨损系利用探针仪器(230)来测量,如轮廓描画仪或扫瞄式探针显微镜。测试结构之利用降低了较大结构被探针破坏之可能性。本发明亦提供其他实施例。
申请公布号
TW200400562
申请公布日期
2004.01.01
申请号
TW092103461
申请日期
2003.02.19
申请人
台湾茂矽电子股份有限公司
发明人
吴国俊
分类号
H01L21/3205
主分类号
H01L21/3205
代理机构
代理人
王丽茹;曾国轩
主权项
地址
新竹市新竹科学工业园区力行路十九号
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