会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 7. 发明授权
    • Method achieving higher inversion layer mobility in novel silicon carbide semiconductor devices
    • 在新型碳化硅半导体器件中实现更高反型层迁移率的方法
    • US06407014B1
    • 2002-06-18
    • US09464862
    • 1999-12-16
    • Dev Alok
    • Dev Alok
    • H01L21302
    • H01L29/7802H01L21/02532H01L21/02667H01L21/0445H01L21/049H01L21/2022H01L29/1608H01L29/66068Y10S438/966Y10S438/969
    • The invention provides a method for the production of high quality thermally grown oxide on top of silicon carbide. The high quality oxide is obtained by selectively removing the carbon from the silicon carbide in the areas where oxide formation is desired or required. The method includes the steps of: (a) amorphizing the silicon carbide in at least one region of a monocrystalline silicon carbide substrate by ion implantation; (b) removing at least an effective amount of the carbon resulting from amorphizing the silicon carbide with an etchant effective to selectively remove carbon from the amorphized silicon carbide to produce an amorphous silicon-rich region; and (c) forming an oxide on the etched surface to provide a device which has an oxide region on (1) either an amorphous silicon-rich region which is (i) predominantly or entirely amorphous silicon or (ii) a mixture of predominantly amorphous silicon in combination with minor amounts of amorphous silicon carbide and /or silicon dioxide or (2) a monocrystalline silicon region; wherein (1) or (2) is present on a region of a silicon carbide substrate, or (3) a region of a silicon carbide substrate.
    • 本发明提供了一种在碳化硅顶部生产高质量热生长氧化物的方法。 通过在需要或需要氧化物形成的区域中选择性地除去碳化硅中的碳而获得高质量的氧化物。 该方法包括以下步骤:(a)通过离子注入使单晶碳化硅衬底的至少一个区域中的碳化硅非晶化;(b)除去至少有效量的由蚀刻剂使碳化硅非晶化所产生的碳 有效地从非晶化碳化硅中选择性地除去碳以产生无定形富硅区域; 和(c)在蚀刻表面上形成氧化物以提供在(1)无定形富硅区域上具有氧化物区域的器件,所述非晶硅富集区域是(i)主要或全部非晶硅,或(ii)主要为非晶态的 硅与少量非晶碳化硅和/或二氧化硅组合,或(2)单晶硅区;其中(1)或(2)存在于碳化硅衬底的区域上,或(3) 碳化硅衬底。
    • 9. 发明授权
    • Method for forming planar field effect transistors with source and drain
on oxide and device constructed therefrom
    • 用于形成具有氧化物源极和漏极的平面场效应晶体管的方法及由其构成的器件
    • US5913135A
    • 1999-06-15
    • US989985
    • 1997-12-12
    • Ih-Chin Chen
    • Ih-Chin Chen
    • H01L29/78H01L21/336H01L21/762H01L29/06H01L29/417H01L21/20
    • H01L29/66651H01L21/76202H01L29/0653H01L29/41766H01L29/41775Y10S438/969
    • A method for forming a transistor (50) includes forming a first insulating region (16) in the outer surface of a semiconductor body (10) and forming a second insulating region (16) in the outer surface of the semiconductor body (10) and spaced apart from the first insulating region by a region of semiconductor material. The method further includes planarizing the first and second insulating regions and the region of semiconductor material to define a planar surface (17) and forming a conductive source region (34) overlying the first insulating region. The method further includes forming a conductive drain region (36) overlying the second insulating region and forming a conductive gate body (24) overlying the planar surface (17) and spaced apart from the conductive source region (34) and the conductive drain region (36).A field effect transistor device (50) having a substrate (10) is provided. The transistor (50) includes a conductive gate body (24) and a gate insulator layer (32) having a planar outer surface adjacent to the conductive gate body and a planar inner surface (39). The transistor further includes first and second insulating regions (16) formed in the substrate. The transistor (50) also includes a conductive drain region (36) formed on the second insulating region and a conductive source region (34) formed on the first insulating region and spaced apart from the conductive gate body (24) opposite the conductive drain region (36). The conductive drain region and conductive source region define a portion of the planar inner surface (39).
    • 一种形成晶体管(50)的方法包括在半导体本体(10)的外表面中形成第一绝缘区域(16),并在半导体本体(10)的外表面形成第二绝缘区域(16),以及 通过半导体材料的区域与第一绝缘区间隔开。 该方法还包括平面化第一和第二绝缘区域和半导体材料的区域以限定平坦表面(17)并且形成覆盖在第一绝缘区域上的导电源区域(34)。 该方法还包括形成覆盖第二绝缘区域的导电漏极区域(36),并且形成覆盖平面表面(17)并与导电源区域(34)和导电漏极区域(34)隔开的导电栅极体(24) 36)。 提供具有基板(10)的场效应晶体管器件(50)。 晶体管(50)包括导电栅极主体(24)和栅极绝缘体层(32),栅极绝缘体层(32)具有与导电栅极主体相邻的平面外表面和平坦的内表面(39)。 晶体管还包括形成在衬底中的第一和第二绝缘区域(16)。 晶体管(50)还包括形成在第二绝缘区域上的导电漏极区域(36)和形成在第一绝缘区域上并与导电栅极体(24)间隔开的导电源区域(34) (36)。 导电漏极区域和导电源区域限定平面内表面(39)的一部分。
    • 10. 发明授权
    • Field effect transistors comprising electrically conductive plugs having
monocrystalline and polycrystalline silicon
    • 场效应晶体管包括具有单晶硅和多晶硅的导电插塞
    • US5831334A
    • 1998-11-03
    • US912899
    • 1997-08-15
    • Kirk PrallPai-Hung PanSujit Sharan
    • Kirk PrallPai-Hung PanSujit Sharan
    • H01L21/225H01L21/336H01L29/08H01L29/43
    • H01L29/66628H01L21/2257H01L29/0847Y10S438/969
    • A method of forming a field effect transistor relative to a monocrystalline silicon substrate, where the transistor has an elevated source and an elevated drain, includes: a) providing a transistor gate over the monocrystalline silicon substrate, the gate being encapsulated in electrically insulative material; b) providing outer exposed monocrystalline silicon substrate surfaces adjacent the transistor gate; c) cleaning the outer exposed substrate surfaces to remove oxide and impurities therefrom; d) within a rapid thermal chemical vapor deposition reactor and after the cleaning step, chemical vapor depositing a conductively doped non-polycrystalline silicon layer over the cleaned substrate surfaces adjacent the transistor gate, the non-polycrystalline silicon layer having an outer surface, the substrate not being exposed to oxidizing or contaminating conditions between the time of cleaning and the chemical vapor depositing; and e) after chemical vapor depositing, exposing the doped non-polycrystalline silicon layer to high temperature annealing conditions effective to, i) produce doped monocrystalline silicon extending outwardly from the substrate surface, and ii) produce doped polycrystalline silicon extending inwardly from the outer surface; the doped monocrystalline silicon and doped polycrystalline silicon joining at an interface which is displaced elevationally outward of the substrate surfaces. A field effect transistor is also claimed.
    • 一种形成相对于单晶硅衬底的场效晶体管的方法,其中晶体管具有升高的源极和升高的漏极,包括:a)在单晶硅衬底上提供晶体管栅极,栅极被封装在电绝缘材料中; b)提供与晶体管栅极相邻的外部暴露的单晶硅衬底表面; c)清洁外露的基底表面以从其中除去氧化物和杂质; d)在快速热化学气相沉积反应器内部,并且在清洁步骤之后,在与晶体管栅极相邻的清洁的衬底表面上化学气相沉积导电掺杂的非多晶硅层,非多晶硅层具有外表面,衬底 不会在清洗时间和化学气相沉积之间暴露于氧化或污染条件; 以及e)在化学气相沉积之后,将所述掺杂的非多晶硅层暴露于高温退火条件,所述高温退火条件有效地,i)产生从所述衬底表面向外延伸的掺杂单晶硅,以及ii)产生从所述外表面向内延伸的掺杂多晶硅 ; 掺杂的单晶硅和掺杂的多晶硅在衬底表面的高度位移的界面处接合。 还要求一种场效应晶体管。