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    • 4. 发明授权
    • Hollow structure in an integrated circuit and method for producing such a hollow structure in an integrated circuit
    • 集成电路中的空心结构和在集成电路中制造这种中空结构的方法
    • US07259441B2
    • 2007-08-21
    • US10469279
    • 2002-02-15
    • Werner PamlerSiegfried SchwarzlZvonimir Gabric
    • Werner PamlerSiegfried SchwarzlZvonimir Gabric
    • H01L29/00
    • H01L23/5222H01L21/7682H01L23/53295H01L2924/0002H01L2924/00
    • A pattern of voids in an integrated circuit having a first layer, a first layer surface and adjacent lands on the first layer surface, the adjacent lands enclosing spaces and including a second layer of a first isolation material and a third layer of a second isolation material arranged on the second layer. The pattern of voids has a fourth layer of a third isolation material which closes off at least some of the spaces and cannot be deposited on the first isolation material. The fourth layer is arranged on the third layer and has a second layer surface. Spaces that are not closed off by means of the fourth layer are filled with electrically conductive material. In the method for producing a pattern of voids in an integrated circuit, a second layer of a first isolation material is applied to a first layer surface of a first layer. A third layer of a second isolation material is applied to the second layer, the third layer acquiring a second layer surface which is arranged parallel to the first layer surface. Adjacent lands with spaces are formed from the second layer and the third layer. A third isolation material is selectively applied on the adjacent lands to the third layer, such that a fourth layer is formed between and above the adjacent lands. Parallel to the first layer surface, the fourth layer is partially removed until the second layer surface is uncovered. The fourth layer is completely removed above some spaces, and finally these spaces are filled with electrically conductive material in order to form electrical contacts between the first layer surface and the second layer surface, resulting in a pattern of voids.
    • 具有第一层,第一层表面和第一层表面上的相邻焊盘的​​集成电路中的空隙图案,相邻焊盘包围空间并且包括第二层第一隔离材料和第三层第二隔离材料 布置在第二层上。 空隙的图案具有第四隔离材料的第四层,其封闭至少一些空间并且不能沉积在第一隔离材料上。 第四层布置在第三层上并具有第二层表面。 未被第四层封闭的空间用导电材料填充。 在集成电路中产生空隙图案的方法中,将第一隔离材料的第二层施加到第一层的第一层表面。 将第三隔离材料层施加到第二层上,第三层获得平行于第一层表面布置的第二层表面。 从第二层和第三层形成具有空间的相邻区域。 第三隔离材料被选择性地施加到相邻的焊盘上到第三层,使得在相邻的焊盘之间和之上形成第四层。 与第一层表面平行,第四层被部分去除,直到第二层表面未被覆盖。 第四层在一些空间之上完全除去,最后这些空间填充有导电材料,以形成第一层表面和第二层表面之间的电接触,导致空隙图案。