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    • 1. 发明授权
    • Semiconductor device
    • 半导体器件
    • US08779523B2
    • 2014-07-15
    • US13491909
    • 2012-06-08
    • Koji ShiraiKen InadumiTsuyoshi HirayuToshihiro Sakamoto
    • Koji ShiraiKen InadumiTsuyoshi HirayuToshihiro Sakamoto
    • H01L29/76
    • H01L27/092H01L21/823814H01L21/823892H01L29/0653H01L29/0847H01L29/1083H01L29/42368H01L29/7835
    • According to one embodiment, a semiconductor device includes a semiconductor substrate with a p-type conductivity, a buried layer with an n-type conductivity provided on the semiconductor substrate, a back gate layer with a p-type conductivity provided on the buried layer, a drain layer with an n-type conductivity provided on the back gate layer, a source layer with an n-type conductivity provided spaced from the drain layer, a gate electrode provided in a region immediately above a portion of the back gate layer between the drain layer and the source layer, and a drain electrode in contact with a part of an upper surface of the drain layer. A thickness of the drain layer in a region immediately below a contact surface between the drain layer and the drain electrode is half a total thickness of the back gate and drain layers in the region.
    • 根据一个实施例,半导体器件包括具有p型导电性的半导体衬底,设置在半导体衬底上的具有n型导电体的掩埋层,设置在掩埋层上的具有p型导电性的背栅层, 设置在背栅层上的具有n型导电性的漏极层,与漏极层隔开设置的具有n型导电性的源极层,设置在背栅层之间的紧邻上部的区域之间的栅电极 漏极层和源极层,以及与漏极层的上表面的一部分接触的漏电极。 在漏极层和漏极之间的接触表面正下方的区域中的漏极层的厚度是该区域中的背栅极和漏极层的总厚度的一半。
    • 9. 发明授权
    • Optical modulator
    • 光调制器
    • US07292739B2
    • 2007-11-06
    • US10527214
    • 2003-09-10
    • Takashi ShinrikiToshihiro SakamotoMasanao KuriharaToru SugamataNorikazu Miyazaki
    • Takashi ShinrikiToshihiro SakamotoMasanao KuriharaToru SugamataNorikazu Miyazaki
    • G02F1/035
    • G02F1/0305G02F1/0316G02F1/225
    • An optical modulator in which stabilized driving is realized over a long time by relaxing stress generated in a recess formed in the surface of a substrate in the optical modulator and controlling deterioration of optical modulation control caused by stress-strain in the substrate including an optical waveguide. The optical modulator comprises a substrate of a material exhibiting electrooptic effect, an optical waveguide (4) provided on the substrate, and control electrodes (20-25) for controlling the phase of light being guided through the optical waveguide characterized in that a recess (12) is provided in the surface of the substrate for forming the control electrodes, and the control electrode (24) being formed on the recess is provided with a stress relaxing means.
    • 一种光调制器,其特征在于,通过在形成于所述光调制器的基板的表面上形成的凹部中产生的应力,在长时间内实现稳定的驱动,并控制由包括光波导的基板中的应力应变引起的光调制控制的劣化 。 光学调制器包括具有电光效应的材料的衬底,设置在衬底上的光波导(4)和用于控制通过光波导引导的光的相位的控制电极(20-25),其特征在于,凹部 12)设置在用于形成控制电极的基板的表面中,并且形成在凹部上的控制电极(24)设置有应力缓和装置。