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    • 33. 发明申请
    • Semiconductor device
    • 半导体器件
    • US20070181886A1
    • 2007-08-09
    • US11701429
    • 2007-02-02
    • Yoshio ShimoidaMasakatsu HoshiTetsuya HayashiHideaki TanakaShigeharu Yamagami
    • Yoshio ShimoidaMasakatsu HoshiTetsuya HayashiHideaki TanakaShigeharu Yamagami
    • H01L31/0312
    • H01L29/267H01L29/0619H01L29/0623H01L29/0696H01L29/1608H01L29/66068H01L29/7828
    • A semiconductor device, includes: a first conductivity-semiconductor substrate; a hetero semiconductor region for forming a hetero junction with the first conductivity-semiconductor substrate; a gate electrode adjacent to a part of the hetero junction by way of a gate insulating film; a drain electrode connecting to the first conductivity-semiconductor substrate; a source electrode connecting to the hetero semiconductor region; and a second conductivity-semiconductor region formed on a part of a first face of the first conductivity-semiconductor substrate in such a configuration as to oppose the gate electrode via the gate insulating film, the gate insulating film, the hetero semiconductor region and the first conductivity-semiconductor substrate contacting each other to thereby form a triple contact point. A first face of the second conductivity-semiconductor region has such an impurity concentration that allows a field from the gate electrode to form an inversion layer on the first face of the second conductivity-semiconductor region.
    • 一种半导体器件,包括:第一导电半导体衬底; 用于与第一导电半导体衬底形成异质结的异质半导体区域; 通过栅绝缘膜与所述异质结的一部分相邻的栅电极; 连接到所述第一导电半导体衬底的漏电极; 连接到所述异质半导体区域的源电极; 以及第二导电半导体区域,形成在第一导电半导体基板的第一面的一部分上,以与栅电极相对的方式经由栅极绝缘膜,栅极绝缘膜,异质半导体区域和第一导电半导体区域 导电性半导体基板彼此接触,从而形成三重接触点。 第二导电率半导体区域的第一面具有允许来自栅电极的场在第二导电半导体区域的第一面上形成反型层的杂质浓度。
    • 34. 发明授权
    • Method of manufacturing semiconductor device
    • 制造半导体器件的方法
    • US07531396B2
    • 2009-05-12
    • US11374418
    • 2006-03-14
    • Tetsuya HayashiMasakatsu HoshiYoshio ShimoidaHideaki Tanaka
    • Tetsuya HayashiMasakatsu HoshiYoshio ShimoidaHideaki Tanaka
    • H01L21/338H01L21/066
    • H01L29/66068H01L21/8213H01L29/0619H01L29/0623H01L29/0847H01L29/1608H01L29/267H01L29/41741H01L29/41766H01L29/4236H01L29/7828
    • A method of manufacturing a semiconductor device is disclosed. The semiconductor device includes a semiconductor body of a first conductivity type, a hetero semiconductor region adjacent to one main surface of the semiconductor body and having a band gap different from that of the semiconductor body, and a gate electrode formed in a junction portion between the hetero semiconductor region and the semiconductor body through a gate insulating film. The method includes a first process of forming a predetermined trench by using a mask layer having a predetermined opening on one main surface side of the semiconductor body, a second process of forming a buried region adjacent to at least a side wall of the trench and so as to extend from the trench, a third process of forming a hetero semiconductor layer so as to adjoin the semiconductor body and the buried region, and a fourth process of forming the hetero semiconductor region by patterning the hetero semiconductor layer.
    • 公开了制造半导体器件的方法。 半导体器件包括第一导电类型的半导体本体,与半导体本体的一个主表面相邻且具有与半导体本体不同的带隙的异质半导体区域,以及形成在该半导体器件之间的接合部分中的栅电极 异质半导体区域和半导体本体通过栅极绝缘膜。 该方法包括通过使用在半导体主体的一个主表面侧上具有预定开口的掩模层来形成预定沟槽的第一工艺,形成与沟槽的至少侧壁相邻的掩埋区域的第二工艺 从沟槽延伸,形成与半导体本体和掩埋区相邻的异质半导体层的第三工序,以及通过图案化杂半导体层形成异质半导体区的第四工序。
    • 36. 发明授权
    • Method of manufacturing semiconductor device
    • 制造半导体器件的方法
    • US07476590B2
    • 2009-01-13
    • US11231799
    • 2005-09-22
    • Tetsuya HayashiMasakatsu HoshiYoshio ShimoidaHideaki Tanaka
    • Tetsuya HayashiMasakatsu HoshiYoshio ShimoidaHideaki Tanaka
    • H01L21/336
    • H01L29/7828H01L29/1608H01L29/267H01L29/66068H01L29/7827
    • A method of manufacturing a semiconductor device having: forming a hetero semiconductor layer on at least the major surface of the semiconductor substrate body of a first conductivity type; etching the hetero semiconductor layer selectively by use of a mask layer having openings in way that the hetero semiconductor layer remains to be not etched with a predetermined thickness; oxidizing an exposed parts of the hetero semiconductor layer; forming the hetero semiconductor region by etching a oxidized film formed in the oxidizing; and forming the gate insulating film in a way that the gate insulating film makes an intimate contact with the hetero semiconductor region and the semiconductor substrate body. The bandgap of the hetero semiconductor layer is different from that of the semiconductor substrate body. The gate electrode is arranged in a junction part between the hetero semiconductor region and the semiconductor substrate body with the gate insulating film interposed between the gate electrode and the junction part.
    • 一种制造半导体器件的方法,其特征在于:在至少在第一导电类型的半导体衬底主体的主表面上形成杂半导体层; 通过使用具有开口的掩模层选择性地蚀刻异质半导体层,使得异质半导体层保持不被预定厚度蚀刻; 氧化杂半导体层的暴露部分; 通过蚀刻氧化膜形成的氧化膜来形成异质半导体区域; 以及栅极绝缘膜与异质半导体区域和半导体衬底本体紧密接触的方式形成栅极绝缘膜。 异质半导体层的带隙与半导体衬底本体的带隙不同。 栅电极配置在异质半导体区域和半导体衬底本体之间的接合部分中,栅极绝缘膜介于栅电极和接合部分之间。