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    • 2. 发明申请
    • METHOD OF FORMING GATE CONDUCTOR STRUCTURES
    • 形成栅极导体结构的方法
    • US20120288802A1
    • 2012-11-15
    • US13103108
    • 2011-05-09
    • Chang-Ming WuYi-Nan ChenHsien-Wen Liu
    • Chang-Ming WuYi-Nan ChenHsien-Wen Liu
    • G03F7/20
    • H01L21/32139H01L21/28123H01L21/28132
    • A method of forming gate conductor structures. A substrate having thereon a gate electrode layer is provided. A multi-layer hard mask is formed overlying the gate electrode layer. The multi-layer hard mask comprises a first hard mask, a second hard mask, and a third hard mask. A photoresist pattern is formed on the multi-layer hard mask. A first etching process is performed to etch the third hard mask, using the photoresist pattern as a first etch resist, thereby forming a patterned third hard mask. A second etching process is performed to etch the second hard mask and the first hard mask, using the patterned third hard mask as a second etch resist, thereby forming a patterned first hard mask. A third etching process is performed to etch a layer of the gate electrode layer, using the patterned first hard mask as a third etch resist.
    • 一种形成栅极导体结构的方法。 提供了具有栅电极层的基板。 形成覆盖栅电极层的多层硬掩模。 多层硬掩模包括第一硬掩模,第二硬掩模和第三硬掩模。 在多层硬掩模上形成光刻胶图形。 执行第一蚀刻工艺以蚀刻第三硬掩模,使用光致抗蚀剂图案作为第一蚀刻抗蚀剂,由此形成图案化的第三硬掩模。 执行第二蚀刻工艺以蚀刻第二硬掩模和第一硬掩模,使用图案化的第三硬掩模作为第二蚀刻抗蚀剂,由此形成图案化的第一硬掩模。 执行第三蚀刻工艺以蚀刻栅极电极层的层,使用图案化的第一硬掩模作为第三蚀刻抗蚀剂。
    • 3. 发明授权
    • Method of forming gate conductor structures
    • 形成栅极导体结构的方法
    • US08758984B2
    • 2014-06-24
    • US13103108
    • 2011-05-09
    • Chang-Ming WuYi-Nan ChenHsien-Wen Liu
    • Chang-Ming WuYi-Nan ChenHsien-Wen Liu
    • H01L21/70
    • H01L21/32139H01L21/28123H01L21/28132
    • A method of forming gate conductor structures. A substrate having thereon a gate electrode layer is provided. A multi-layer hard mask is formed overlying the gate electrode layer. The multi-layer hard mask comprises a first hard mask, a second hard mask, and a third hard mask. A photoresist pattern is formed on the multi-layer hard mask. A first etching process is performed to etch the third hard mask, using the photoresist pattern as a first etch resist, thereby forming a patterned third hard mask. A second etching process is performed to etch the second hard mask and the first hard mask, using the patterned third hard mask as a second etch resist, thereby forming a patterned first hard mask. A third etching process is performed to etch a layer of the gate electrode layer, using the patterned first hard mask as a third etch resist.
    • 一种形成栅极导体结构的方法。 提供了具有栅电极层的基板。 形成覆盖栅电极层的多层硬掩模。 多层硬掩模包括第一硬掩模,第二硬掩模和第三硬掩模。 在多层硬掩模上形成光刻胶图形。 执行第一蚀刻工艺以蚀刻第三硬掩模,使用光致抗蚀剂图案作为第一蚀刻抗蚀剂,由此形成图案化的第三硬掩模。 执行第二蚀刻工艺以蚀刻第二硬掩模和第一硬掩模,使用图案化的第三硬掩模作为第二蚀刻抗蚀剂,由此形成图案化的第一硬掩模。 执行第三蚀刻工艺以蚀刻栅极电极层的层,使用图案化的第一硬掩模作为第三蚀刻抗蚀剂。
    • 7. 发明授权
    • Method for forming openings in semiconductor device
    • 在半导体器件中形成开口的方法
    • US08642479B2
    • 2014-02-04
    • US13183358
    • 2011-07-14
    • Chih-Ching LinYi-Nan ChenHsien-Wen Liu
    • Chih-Ching LinYi-Nan ChenHsien-Wen Liu
    • H01L21/302
    • H01L21/76802H01L21/31144H01L21/32137
    • A method for forming an opening in a semiconductor device is provided, including: providing a semiconductor substrate with a silicon oxide layer, a polysilicon layer and a silicon nitride layer sequentially formed thereover; patterning the silicon nitride layer, forming a first opening in the silicon nitride layer, wherein the first opening exposes a top surface of the polysilicon layer; performing a first etching process, using gasous etchants including hydrogen bromide (HBr), oxygen (O2), and fluorocarbons (CxFy), forming a second opening in the polysilicon layer, wherein a sidewall of the polysilicon layer adjacent to the second opening is substantially perpendicular to a top surface of the silicon oxide layer, wherein x is between 1-5 and y is between 2-8; removing the silicon nitride layer; and performing a second etching process, forming a third opening in the silicon oxide layer exposed by the second opening.
    • 提供了一种在半导体器件中形成开口的方法,包括:向半导体衬底提供其上顺序形成的氧化硅层,多晶硅层和氮化硅层; 图案化氮化硅层,在氮化硅层中形成第一开口,其中第一开口暴露多晶硅层的顶表面; 使用包括溴化氢(HBr),氧(O 2)和碳氟化合物(C x F y)的气体蚀刻剂进行第一蚀刻工艺,在多晶硅层中形成第二开口,其中与第二开口相邻的多晶硅层的侧壁基本上 垂直于氧化硅层的顶表面,其中x在1-5之间,y在2-8之间; 去除氮化硅层; 以及进行第二蚀刻工艺,在由所述第二开口暴露的所述氧化硅层中形成第三开口。