Abstract:
PROBLEM TO BE SOLVED: To reduce or essentially remove an upheaval or protrusion which generally extends upward from an almost plane surface of polysilicon film that is manufactured by low-temperature polysilicon silicon (LTPS) annealing of an amorphous silicon film deposited on a substrate. SOLUTION: The planarizing solution which is highly aqueous and strongly basic has a pH of 12 or more and contains water, at least one kind of strong base, and at least one kind of etching speed controlling agent. The method of use thereof includes a process which contacts the almost plane surface of polysilicon film with the solution which is highly aqueous and strongly basic for a sufficient time to make etching selectively the upheaval or protrusion from the surface of the almost plane polysilicon film without etching significantly the almost plane polysilicon film. COPYRIGHT: (C)2009,JPO&INPIT
Abstract in simplified Chinese:本发明系关于一种高度含水、强碱性平坦化溶液及其用以缩减或基本上消除自一大体上平坦之多晶硅膜表面大体上向上延伸之突起或突出的方法,该多晶硅膜系借由使一沉积于一基板上之非晶硅膜低温多晶硅(LTPS)退火而产生;该方法包括使该大体上平坦之多晶硅膜之该表面与该高度含水、强碱性平坦化溶液接触,接触时间足以自该大体上平坦之多晶硅膜之该表面选择性地蚀刻该等突起或突出而且对该大体上平坦之多晶硅膜无任何显着蚀刻,该高度含水、强碱性溶液为具有12或更高pH値之溶液且包含水、至少一种强碱及至少一种蚀刻率控制剂。
Abstract in simplified Chinese:本发明系关于一种制造半导体设备之方法,其包括在化学机械抛光组合物(Q1)的存在下对含至少一种III-V族材料之基板或层进行化学机械抛光,该组合物(Q1)包含:(A)无机颗粒、有机颗粒、或其混合物或复合物,(B)至少一种两性非离子界面活性剂,其具有(b1)至少一个疏水性基团;及(b2)至少一个选自由聚氧伸烷基基团组成之群之亲水性基团,该等聚氧伸烷基包含(b22)除氧伸乙基单体单元以外之氧伸烷基单体单元;及(M)水性介质。