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    • 6. 发明公开
    • 반도체 소자의 게이트 형성방법
    • 在TRENCH中蚀刻多晶硅层的方法
    • KR1020020050563A
    • 2002-06-27
    • KR1020000079738
    • 2000-12-21
    • 삼성전자주식회사
    • 오영묵성석현이철웅
    • H01L21/76
    • PURPOSE: An etch method of a polysilicon layer in a trench is provided to minimize a polysilicon layer filled into a trench and losses of the polysilicon layer by depositing a photoresist on the polysilicon layer. CONSTITUTION: A trench is firstly formed on a semiconductor substrate(110). Then, an oxide(120) having an equal thickness is formed by a blanket method on the entire surface of the resultant structure. A polysilicon layer(130) is filled into the trench. Then, a photoresist(150) having a smaller etching selectivity than the polysilicon layer(130) is deposited on the resultant structure. At this time, the photoresist(150) is slowly etched than the polysilicon layer(130) due to a difference of an etching selectivity, thereby reducing losses of the polysilicon(130). The photoresist(150) and the polysilicon layer(130) are sequentially etched.
    • 目的:提供沟槽中的多晶硅层的蚀刻方法,以通过在多晶硅层上沉积光刻胶来最小化填充到沟槽中的多晶硅层和多晶硅层的损耗。 构成:首先在半导体衬底(110)上形成沟槽。 然后,在所得结构的整个表面上通过毯式方法形成具有相同厚度的氧化物(120)。 多晶硅层(130)被填充到沟槽中。 然后,在所得结构上沉积具有比多晶硅层(130)更小的蚀刻选择性的光致抗蚀剂(150)。 此时,由于蚀刻选择性的差异,光致抗蚀剂(150)被缓慢地蚀刻成多晶硅层(130),从而减少多晶硅(130)的损耗。 依次蚀刻光致抗蚀剂(150)和多晶硅层(130)。
    • 9. 发明公开
    • NMOS 게이트 전극의 형성방법
    • 形成NMOS栅极电极的方法
    • KR1020080043645A
    • 2008-05-19
    • KR1020060112438
    • 2006-11-14
    • 삼성전자주식회사
    • 이철웅전성용윤한식성석현오치관이인근
    • H01L21/336
    • H01L21/28035H01L21/31111H01L21/32105H01L21/32139H01L21/823828
    • A method for forming an NMOS gate electrode is provided to prevent deterioration of speed characteristics of a device by preventing damage of an upper sidewall of a polysilicon gate electrode. A gate insulating layer(12) is formed on a semiconductor substrate(10) including an NMOS region. An NMOS gate polysilicon layer(21) doped with an n type impurity is formed on the gate insulating layer of the NMOS region. A gate hard mask pattern is formed on the NMOS gate polysilicon layer. An NMOS gate polysilicon pattern is formed by etching the NMOS gate polysilicon layer. The substrate including the NMOS gate polysilicon pattern is processed by performing an O2 or O3 process, in order to oxidize a surface of the NMOS gate polysilicon pattern. The gate hard mask pattern is removed.
    • 提供一种用于形成NMOS栅电极的方法,以通过防止多晶硅栅电极的上侧壁的损坏来防止器件的速度特性的劣化。 在包括NMOS区域的半导体衬底(10)上形成栅极绝缘层(12)。 掺杂有n型杂质的NMOS栅多晶硅层(21)形成在NMOS区的栅极绝缘层上。 栅极硬掩模图案形成在NMOS栅极多晶硅层上。 通过蚀刻NMOS栅极多晶硅层形成NMOS栅极多晶硅图案。 通过执行O 2或O 3工艺来处理包括NMOS栅极多晶硅图案的衬底,以便氧化NMOS栅极多晶硅图案的表面。 去除门硬掩模图案。
    • 10. 发明公开
    • 반도체 소자의 금속 배선 형성 방법
    • 金属互连方法在半导体器件
    • KR1020070073523A
    • 2007-07-10
    • KR1020060001500
    • 2006-01-05
    • 삼성전자주식회사
    • 이철웅이정진전성용성석현
    • H01L21/28
    • H01L21/76829H01L21/31116
    • A method for forming a metal line of a semiconductor device is provided to restrain the degradation of contact resistance between metals and to improve reliability of the metal line by reducing the generation of byproducts in an etching process on an etch stop layer using a high etch selectivity on the etch stop layer. A first interlayer dielectric(100) is formed on a semiconductor substrate. A first metal line(120) is formed in the first interlayer dielectric. An etch stop layer(300) and a second interlayer dielectric(400) are sequentially formed on the resultant structure. An opening portion for exposing the etch stop layer to the outside is formed through the second interlayer dielectric. The exposed etch stop layer is removed from the resultant structure by using a mixed gas of CH3F, Ar and O2. At this time, the first metal line is exposed to the outside. A second metal line(420) for contacting the first metal line is formed on the resultant structure.
    • 提供一种用于形成半导体器件的金属线的方法,以抑制金属之间的接触电阻的劣化并且通过使用高蚀刻选择性减少在蚀刻停止层上的蚀刻工艺中的副产物的产生来提高金属线的可靠性 在蚀刻停止层上。 第一层间电介质(100)形成在半导体衬底上。 第一金属线(120)形成在第一层间电介质中。 在所得结构上依次形成蚀刻停止层(300)和第二层间电介质(400)。 通过第二层间电介质形成用于将蚀刻停止层暴露于外部的开口部分。 通过使用CH 3 F,Ar和O 2的混合气体,从所得结构除去暴露的蚀刻停止层。 此时,第一条金属线暴露在外面。 在所得结构上形成用于接触第一金属线的第二金属线(420)。