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    • 3. 发明专利
    • Silicon processing method and silicon substrate with etching mask
    • 硅加工方法和带有蚀刻掩模的硅基材
    • JP2010056379A
    • 2010-03-11
    • JP2008221247
    • 2008-08-29
    • Canon Incキヤノン株式会社
    • KATO TAKAHISASHIMADA YASUHIRO
    • H01L21/306B81B3/00B81C1/00G02B26/08G02B26/10
    • B81C1/00626B81B2201/0271B81C1/00404B81C2201/0133B81C2201/0198
    • PROBLEM TO BE SOLVED: To provide a silicon processing method forming a structure small in a processing dimensional error even when there is an alignment error between a crystal axis orientation and an etching mask, a silicon substrate with an etching mask, and the like.
      SOLUTION: The silicon processing method includes: forming a mask pattern on a single-crystal silicon substrate 100 of which principal surface is (100) an equivalent face 103 or (110) an equivalent face; and applying crystal anisotropic etching to form a structure comprising (111) an equivalent face and having width W1 and length L1. A determining section for determining the width W1 of the structure is formed in the mask pattern. The width of the determining section for the width W1 of the mask pattern has width W2. The width of the mask pattern other than the determining section is larger than the width W2 over a length direction of the mask pattern.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:即使当晶轴方向和蚀刻掩模之间存在取向误差时,也提供一种形成处理尺寸误差小的结构的硅处理方法,具有蚀刻掩模的硅衬底和 喜欢。 解决方案:硅处理方法包括:在主面为(100)为等效面103或(110)等效面的单晶硅基板100上形成掩模图案; 并施加晶体各向异性蚀刻以形成包括(111)等效面并具有宽度W1和长度L1的结构。 用于确定结构的宽度W1的确定部分形成在掩模图案中。 掩模图案的宽度W1的确定部分的宽度具有宽度W2。 除了确定部分之外的掩模图案的宽度大于在掩模图案的长度方向上的宽度W2。 版权所有(C)2010,JPO&INPIT