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    • 5. 发明授权
    • Method of forming semiconductor device patterns
    • 形成半导体器件图案的方法
    • US08227354B2
    • 2012-07-24
    • US12480807
    • 2009-06-09
    • Bong-cheol KimDae-youp LeeSang-youn JoJa-min KooByeong-hwan SonJang-hwan Jeong
    • Bong-cheol KimDae-youp LeeSang-youn JoJa-min KooByeong-hwan SonJang-hwan Jeong
    • H01L21/302
    • H01L21/3086H01L21/0337H01L21/32139H01L27/11521
    • Provided is a method of forming patterns of a semiconductor device, whereby patterns having various widths can be simultaneously formed, and pattern density can be doubled by a double patterning process in a portion of the semiconductor device. In the method of forming patterns of a semiconductor device, a first mold mask pattern and a second mold mask patter having different widths are formed on a substrate. A pair of first spacers covering both sidewalls of the first mold mask pattern and a pair of second spacers covering both sidewalls of the second mold mask pattern are formed. The first mold mask pattern and the second mold mask pattern are removed, and a wide-width mask pattern covering the second spacer is formed. A lower layer is etched using the first spacers, the second spacers, and the wide-width mask pattern as an etch mask.
    • 提供了一种形成半导体器件的图案的方法,由此可以同时形成具有各种宽度的图案,并且通过在半导体器件的一部分中的双重图案化工艺可以使图案密度加倍。 在形成半导体器件的图案的方法中,在衬底上形成具有不同宽度的第一模具掩模图案和第二模具掩模图案。 形成覆盖第一模具掩模图案的两个侧壁的一对第一间隔件和覆盖第二模具掩模图案的两个侧壁的一对第二间隔件。 去除第一模具掩模图案和第二模具掩模图案,并且形成覆盖第二间隔件的宽幅掩模图案。 使用第一间隔物,第二间隔物和宽幅掩模图案作为蚀刻掩模蚀刻下层。
    • 9. 发明授权
    • Methods of forming electrically isolated active region pedestals using
trench-based isolation techniques
    • 使用基于沟槽的隔离技术形成电隔离的有源区域基座的方法
    • US5750433A
    • 1998-05-12
    • US748865
    • 1996-11-14
    • Sang-youn Jo
    • Sang-youn Jo
    • H01L21/66H01L21/76H01L21/762H01L21/8242H01L27/108
    • H01L21/76224
    • Methods of forming electrically isolated active regions in semiconductor substrates include the steps of forming a plurality of trenches in a face of a semiconductor substrate to define an active region pedestal between first and second dummy region pedestals and then forming an electrically insulating layer on the active region and dummy region pedestals and in the trenches disposed therebetween. A mask is then patterned to expose a portion of the electrically insulating layer on the active region pedestal and then the exposed portion of the electrically insulating layer is etched so that a thickness of the electrically insulating layer on the active region pedestal is less than a thickness of the electrically insulating layer on the first and second dummy region pedestals. A step is then performed to planarize the electrically insulating layer to selectively expose the active region pedestal but not the first and second dummy region pedestals. This planarizing step also results in the formation of a uniform surface profile at the edges of the active region pedestal.
    • 在半导体衬底中形成电绝缘的有源区的方法包括以下步骤:在半导体衬底的表面上形成多个沟槽,以在第一和第二虚拟区域基座之间限定有源区基座,然后在有源区上形成电绝缘层 和虚设区域基座,并设置在它们之间的沟槽中。 然后对掩模进行构图以暴露有源区基座上的电绝缘层的一部分,然后蚀刻电绝缘层的暴露部分,使得有源区基座上的电绝缘层的厚度小于厚度 在第一和第二虚拟区域基座上的电绝缘层。 然后执行步骤以使电绝缘层平坦化以选择性地暴露有源区基座,而不是第一和第二虚拟区基座。 该平坦化步骤还导致在有源区基座的边缘处形成均匀的表面轮廓。