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    • 2. 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。
    • 3. 发明申请
    • Method of press molding and molding device
    • 压模成型方法
    • US20060137422A1
    • 2006-06-29
    • US11313659
    • 2005-12-22
    • Hidemoto KodakaNaohisa Adachi
    • Hidemoto KodakaNaohisa Adachi
    • B21D22/22
    • B21D22/22B21D24/04
    • The sheet metal blank to be press molded comprises a product section (W1) and a grip section (W2) disposed on the periphery of the product section (W1). The press molding device performs press molding on the product section (W1) while gripping the grip section (W2) with the upper die (11) and the lower die (12). A bead (W3) comprising alternately disposed indented sections (A, C) and protruding sections (B, D) is press molded beforehand on the grip section (W2) by meshing the indented corners (6, 8) and protruding corners (3, 5) formed on the lower die (12) with corresponding indented corners (7, 9) and protruding corners (2, 4) formed on the upper die (11). Consequently a preferable constraining force without reducing the radius of the indented sections (A, C) and protruding sections (B, D), thereby protecting the galvanized surface of the sheet blank from chipping.
    • 要加压成型的金属板坯包括产品部分(W 1)和设置在产品部分(W 1)周边上的把持部分(W 2)。 压制成形装置在用上模(11)和下模(12)夹持抓握部(W 2)的同时,在产品部(W 1)上进行加压成型。 包括交替设置的凹入部分(A,C)和突出部分(B,D)的珠粒(W 3)通过啮合凹入的角部(6,8)和突出的角部 形成在下模具(12)上的相应的凹入角(7,9)和形成在上模具(11)上的突出的角部(2,4)上。 因此,优选的约束力不会减小凹入部分(A,C)和突出部分(B,D)的半径,从而保护片材坯料的镀锌表面不会碎裂。
    • 8. 发明申请
    • Motor control apparatus and motor control method
    • 电机控制装置及电机控制方式
    • US20030090231A1
    • 2003-05-15
    • US10286765
    • 2002-11-04
    • NISSAN MOTOR., LTD.
    • Kantaro YoshimotoYasuhiko Kitajima
    • G05B011/01
    • H02P21/22
    • Limits are imposed on a fundamental voltage command value calculated at a fundamental current control circuit that controls a fundamental component of a 3-phase AC motor current in a dq-axis coordinate system rotating in synchronization with the rotation of the 3-phase AC motor by using predetermined limit values and limits are imposed on a higher harmonic voltage command value calculated in an orthogonal coordinate system (a higher harmonic coordinate system) rotating at a frequency set to an integral multiple of the frequency of the fundamental component in the 3-phase AC motor current by using a predetermined limit values. The voltage command values resulting from the limit processing are added together and a voltage corresponding to the sum is applied to the AC motor for drive control.
    • 施加在基本电流控制电路上计算的基本电压指令值的限制,该基波电流控制电路在与三相交流电动机的旋转同步旋转的dq轴坐标系中控制三相交流电动机电流的基波分量, 对在三相AC中设定为基波分量的频率的整数倍的频率旋转的正交坐标系(高次谐波坐标系)中计算出的高次谐波电压指令值施加规定的极限值和极限 电机电流通过使用预定的极限值。 将由极限处理产生的电压指令值相加在一起,将与和相对应的电压施加到用于驱动控制的AC电动机。