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    • 23. 发明申请
    • Semiconductor device
    • 半导体器件
    • US20060071217A1
    • 2006-04-06
    • US11206271
    • 2005-08-18
    • Takasumi OhyanagiAtsuo WatanabeToshio SakakibaraTsuyoshi YamamotoHiroki Nakamura
    • Takasumi OhyanagiAtsuo WatanabeToshio SakakibaraTsuyoshi YamamotoHiroki Nakamura
    • H01L31/0312
    • H01L21/823487H01L29/7722
    • A semiconductor device includes a vertical field-effect transistor having a substrate of first conduction type in a substrate base, a drain electrode formed on a first surface of the substrate, an epitaxial layer of first conduction type formed on a second surface of the substrate, a source region of first conduction type formed on the semiconductor base, a source ohmic contact metal film in ohmic contact with the source region, trenches formed from the second surface of the semiconductor base, and a gate region of second conduction type formed along the trenches. The semiconductor device further includes a gate rise metal film in ohmic contact with the draw-out layer of the gate region on the bottom of the trenches and rising to the second surface of the semiconductor base, and a gate draw-out metal film connected to the gate rise metal film from the second surface of the semiconductor base.
    • 半导体器件包括:垂直场效应晶体管,其具有在基板基底中的第一导电类型的衬底;形成在衬底的第一表面上的漏电极,形成在衬底的第二表面上的第一导电类型的外延层; 在半导体基底上形成的第一导电类型的源极区域,与源极区欧姆接触的源欧姆接触金属膜,从半导体基底的第二表面形成的沟槽和沿着沟槽形成的第二导电类型的栅极区域 。 半导体器件还包括与沟槽底部的栅极区域的引出层欧姆接触并上升到半导体基底的第二表面的栅极上升金属膜,以及连接到 来自半导体基底的第二表面的栅极上升金属膜。
    • 29. 发明授权
    • AV Amplifier
    • AV放大器
    • US6167140A
    • 2000-12-26
    • US36689
    • 1998-03-09
    • Atsuo Watanabe
    • Atsuo Watanabe
    • H04R5/04H04S3/00H02B1/00H04R5/00
    • H03F3/68H03F2200/03H03F2200/321H04R5/04H04R2420/03H04S3/00
    • When a first bi-wiring speaker is connected to output terminals 5A and 5B and a second bi-wiring speaker is connected to output terminals 5D and 5E, and further a two-channel stereo reproduction is performed, a signal 3L for a L channel outputted from a decoder 2 is amplified by amplifiers 4A and 4B in parallel to be given to the first bi-wiring speaker in a bi-wiring connecting manner and a signal 3R for a R channel outputted from the decoder 2 is amplified by amplifiers 4C and 4D in parallel and given to the second bi-wiring speaker in a bi-wiring connecting manner. At this time, a gain corrector 7 equalizes a gain which an output signal of the amplifier 4A has with respect to the signal 3L for the L channel with a gain which an output signal of the amplifier 4B has with respect to the signal 3L for the L channel. Similarly, a gain corrector 8 equalizes a gain which an output signal of the amplifier 4C has with respect to the signal 3R for the R channel with a gain which an output signal of the amplifier 4D has with respect to the signal 3R for the R channel.
    • 当第一双线扬声器连接到输出端子5A和5B,并且第二双线扬声器连接到输出端子5D和5E,并且进一步进行双声道立体声再现时,输出用于L声道的信号3L 解码器2由放大器4A和4B并联放大,以双线连接方式被提供给第一双线扬声器,并且从解码器2输出的用于R通道的信号3R被放大器4C和4D放大 并联并以双线连接方式给予第二双线扬声器。 此时,增益校正器7使放大器4A的输出信号相对于L通道的信号3L的增益与放大器4B的输出信号相对于信号3L的增益相等, L通道。 类似地,增益校正器8使放大器4C的输出信号相对于R沟道的信号3R的增益与放大器4D的输出信号相对于R沟道的信号3R具有的增益相等 。