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    • 31. 发明专利
    • Semiconductor device
    • 半导体器件
    • JP2008016461A
    • 2008-01-24
    • JP2006182703
    • 2006-06-30
    • Toshiba Corp株式会社東芝
    • OTA CHIHARUNISHIO JOJIHATAKEYAMA TETSUOSHINOHE TAKASHI
    • H01L29/47H01L29/06H01L29/12H01L29/739H01L29/78H01L29/861H01L29/872
    • H01L29/66712H01L29/0615H01L29/0619H01L29/0623H01L29/0634H01L29/1608H01L29/402H01L29/6606H01L29/66068H01L29/66143H01L29/66333H01L29/7395H01L29/7811H01L29/8611H01L29/872
    • PROBLEM TO BE SOLVED: To provide a semiconductor device having a configuration capable of keeping the maximum breakdown voltage value.
      SOLUTION: The semiconductor device is provided with a first conductive semiconductor substrate (1); first conductive semiconductor layer (2) formed on this semiconductor substrate, and having an active region and an element termination region surrounding the active region; first electrode (11) selectively formed on the front surface of the active region of the semiconductor layer (2); second electrode (4) formed on the rear surface of the semiconductor substrate (1); second conductive first semiconductor region (8) formed on the front surface of the semiconductor layer ranging from the active region end portion to the element termination region; and second conductive second semiconductor region (7) buried in the element termination region, so as to form a strip substantially in parallel to the front surface of the semiconductor layer (2).
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供具有能够保持最大击穿电压值的配置的半导体器件。 解决方案:半导体器件设置有第一导电半导体衬底(1); 形成在该半导体衬底上的第一导电半导体层(2),并且具有活动区域和围绕有源区域的元件端接区域; 选择性地形成在半导体层(2)的有源区的前表面上的第一电极(11); 形成在半导体衬底(1)的后表面上的第二电极(4); 第二导电第一半导体区域(8),形成在从有源区域端部到元件端接区域的半导体层的前表面上; 和埋在元件端接区域中的第二导电第二半导体区域(7),以形成基本上平行于半导体层(2)的前表面的条带。 版权所有(C)2008,JPO&INPIT
    • 32. 发明专利
    • Semiconductor device and its manufacturing method
    • 半导体器件及其制造方法
    • JP2007335519A
    • 2007-12-27
    • JP2006163608
    • 2006-06-13
    • Toshiba Corp株式会社東芝
    • MIZUKAMI MAKOTOOTA CHIHARUSUZUKI TAKUMAYUMOTO MIKI
    • H01L29/866H01L21/28
    • PROBLEM TO BE SOLVED: To provide a semiconductor device capable of allowing a high current to flow in an IMPATT diode, and preventing the increase of cost and weight and the deterioration of reliability. SOLUTION: The semiconductor device includes: an n-type Avalanche breakdown layer 2, a drift layer 3, and an n-type ohmic contact layer 4, which are all epitaxially formed in order on a p-type semiconductor substrate 1; electrodes 5, 6 respectively formed on the upper surface of the ohmic contact layer 4, and on the lower surface of the semiconductor substrate 1; and a plurality of p-type electric field concentration parts 8 formed upward in a projected shape from an interface at the side of the semiconductor substrate 1 inside the Avalanche breakdown layer 2. A reverse bias voltage is applied to a part between the electrodes 5, 6 so as to generate Avalanche breakdown in a p-n junction between the electric field concentration parts 8 and the Avalanche breakdown layer 2. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供能够允许高电流在IMPATT二极管中流动的半导体器件,并且防止成本和重量的增加以及可靠性的劣化。 解决方案:半导体器件包括:在p型半导体衬底1上依次外延形成的n型雪崩击穿层2,漂移层3和n型欧姆接触层4; 分别形成在欧姆接触层4的上表面上的电极5,6和半导体衬底1的下表面; 以及从雪崩击穿层2内部的半导体衬底1侧的界面以投影形状向上形成的多个p型电场集中部分8.反向偏置电压施加到电极5之间的部分, 以便在电场集中部分8和雪崩击穿层2之间的pn结中产生雪崩击穿。版权所有(C)2008,JPO&INPIT
    • 33. 发明专利
    • Semiconductor device
    • 半导体器件
    • JP2005327912A
    • 2005-11-24
    • JP2004144822
    • 2004-05-14
    • National Institute Of Advanced Industrial & TechnologyToshiba Corp株式会社東芝独立行政法人産業技術総合研究所
    • NISHIO JOJIOTA CHIHARUSHINOHE TAKASHIADACHI KAZUKIRO
    • H01L29/872H01L21/336H01L29/12H01L29/47H01L29/78
    • PROBLEM TO BE SOLVED: To provide a semiconductor device capable of improving withstand-voltage and yield.
      SOLUTION: The semiconductor device is provided with a lower region having a first conductive part 12, an upper region having a second conductive part 52, a first epitaxial layer 21 of a first conductivity type arranged between the lower region and the upper region, a first semiconductor region 20 having a first doping layer 22 of a second conductivity type formed in the first epitaxial layer, a second epitaxial layer 31 of the first conductivity type formed between the first semiconductor region and the upper region, and a second semiconductor region 30, having a second doping layer 32 of the second conductivity type formed in the second epitaxial layer. The pattern of the first doping layer and the pattern of the second doping layer are mutually out of alignment, in a direction parallel to the interface of the first semiconductor region and the second semiconductor region.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:提供能够提高耐压和产率的半导体器件。 解决方案:半导体器件设置有具有第一导电部分12的下部区域,具有第二导电部分52的上部区域,布置在下部区域和上部区域之间的第一导电类型的第一外延层21 具有形成在第一外延层中的具有第二导电类型的第一掺杂层22的第一半导体区域20,形成在第一半导体区域和上部区域之间的第一导电类型的第二外延层31和第二半导体区域 30,其具有形成在第二外延层中的第二导电类型的第二掺杂层32。 第一掺杂层的图案和第二掺杂层的图案在平行于第一半导体区域和第二半导体区域的界面的方向上相互失配。 版权所有(C)2006,JPO&NCIPI