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    • 9. 发明授权
    • Etching solution, method of forming a pattern using the same, method of manufacturing a multiple gate oxide layer using the same and method of manufacturing a flash memory device using the same
    • 蚀刻溶液,使用其形成图案的方法,使用该方法制造多栅极氧化物层的方法以及使用其制造闪存器件的方法
    • US07579284B2
    • 2009-08-25
    • US11482773
    • 2006-07-10
    • Byoung-Moon YoonJi-Hong KimYong-Sun KoKyung-Hyun Kim
    • Byoung-Moon YoonJi-Hong KimYong-Sun KoKyung-Hyun Kim
    • H01L21/311
    • C09K13/04H01L21/32134
    • Example embodiments of the present invention relate to an etching solution, a method of forming a pattern using the same, a method of manufacturing a multiple gate oxide layer using the same and a method of manufacturing a flash memory device using the same. Other example embodiments of the present invention relate to an etching solution having an etching selectivity between a polysilicon layer and an oxide layer, a method of forming a pattern using an etching solution using the same, a method of manufacturing a multiple gate oxide layer using the same, and a method of manufacturing a flash memory device using the same. An etching solution including hydrogen peroxide (H2O2) and ammonium hydroxide (NH4OH) by a volume ratio of about 1:2 to about 1:10 mixed in water. In a method of forming a pattern and methods of manufacturing a multiple gate oxide layer and a flash memory device, a polysilicon layer may be formed on a substrate. An insulation layer pattern including an opening exposing the polysilicon layer may be formed on the polysilicon layer. The polysilicon layer exposed by the insulation layer pattern may be etched using the etching solution. A polysilicon layer pattern may be formed on the substrate using the etching solution.
    • 本发明的示例性实施例涉及一种蚀刻溶液,使用该方法形成图案的方法,使用该蚀刻溶液的多栅极氧化物层的制造方法以及使用其制造闪存器件的方法。 本发明的其它示例性实施例涉及在多晶硅层和氧化物层之间具有蚀刻选择性的蚀刻溶液,使用其使用蚀刻溶液形成图案的方法,使用该栅极氧化物层的方法 以及使用其制造闪存器件的方法。 包含在水中混合的体积比为约1:2至约1:10的过氧化氢(H 2 O 2)和氢氧化铵(NH 4 OH)的蚀刻溶液。 在形成图案的方法和制造多栅极氧化物层和闪存器件的方法中,可以在衬底上形成多晶硅层。 可以在多晶硅层上形成包括露出多晶硅层的开口的绝缘层图案。 可以使用蚀刻溶液蚀刻由绝缘层图案暴露的多晶硅层。 可以使用蚀刻溶液在衬底上形成多晶硅层图案。
    • 10. 发明授权
    • Method of manufacturing a semiconductor device
    • 制造半导体器件的方法
    • US07151043B2
    • 2006-12-19
    • US11082616
    • 2005-03-17
    • Tae-hyun KimByoung-moon YoonWon-jun LeeYong-sun KoKyung-hyun Kim
    • Tae-hyun KimByoung-moon YoonWon-jun LeeYong-sun KoKyung-hyun Kim
    • H01L21/76
    • H01L27/11521H01L21/76224H01L27/115
    • Methods of manufacturing a semiconductor device are provided. A trench is formed in a semiconductor substrate. A first field oxide layer is formed that partially fills the trench. The first field oxide layer defines an active region of the substrate that is adjacent to the trench. An upper portion of sidewalls of the trench extends upward beyond a surface of the first field oxide layer. A first liner is formed on the first field oxide layer and on the portion of the sidewalls of the trench that extend upward beyond the first field oxide layer. A second field oxide layer is formed on the first liner and fills the trench. The second field oxide layer and the first liner are each partially removed to expose a top adjacent surface and upper sidewalls of the trench along the active region of the substrate. A dielectric layer is formed on the exposed top adjacent surface and upper sidewalls of the trench. A gate electrode is formed on the dielectric layer.
    • 提供制造半导体器件的方法。 在半导体衬底中形成沟槽。 形成部分填充沟槽的第一场氧化物层。 第一场氧化物层限定与沟槽相邻的衬底的有源区。 沟槽的侧壁的上部向上延伸超过第一场氧化物层的表面。 第一衬垫形成在第一场氧化物层上并且在沟槽的侧壁的部分上方向上延伸超过第一场氧化物层。 在第一衬垫上形成第二场氧化物层并填充沟槽。 每个部分去除第二场氧化物层和第一衬里以沿着衬底的有源区域暴露沟槽的顶部相邻表面和上侧壁。 介电层形成在沟槽的暴露的顶部相邻表面和上侧壁上。 在电介质层上形成栅电极。