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    • 1. 发明专利
    • Semiconductor device and manufacturing method therefor
    • 半导体器件及其制造方法
    • JP2007005516A
    • 2007-01-11
    • JP2005182905
    • 2005-06-23
    • Denso CorpToyota Central Res & Dev Lab Inc株式会社デンソー株式会社豊田中央研究所
    • KUWABARA MAKOTOHATSUTORI YOSHIKUNIYAMAUCHI SHOICHIMAKINO TOMOATSU
    • H01L29/78H01L29/06
    • H01L29/0634H01L29/1095H01L29/402H01L29/41741H01L29/66734H01L29/7811H01L29/7813H01L2924/0002H01L2924/00
    • PROBLEM TO BE SOLVED: To provide a semiconductor device in which an SJ (superjunction) structure is formed on both cell region and termination region, and pressure resistance in the cell region is adjusted higher than that in the termination region. SOLUTION: The semiconductor device 10 comprises a resurb layer 29 which is formed on the surface of a semiconductor intermediate layer 26 in the termination region 16, a termination contact semiconductor region 48 which is formed on the part of surface of the resurb layer 29 on the cell region 14 side, a field oxide film 36 which is so formed on the part the of the surface of the resurb layer 29 opposite to the cell region 14 side relative to the termination contact semiconductor region 48 that is adjusted to be thinner on the cell region 14 side and thicker in opposite to the cell region 14 side, and a field plate 53 which extends from the surface of the termination contact semiconductor region 48 across a thin layer field oxide film 32 to the surface of a thin layer field oxide film 34. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种在单元区域和终端区域上形成SJ(超结))结构的半导体器件,并且将单元区域中的耐压性调整为高于端接区域中的耐压性。 解决方案:半导体器件10包括形成在终端区域16中的半导体中间层26的表面上的再现层29,形成在再现层的表面的一部分上的端接触半导体区域48 在单元区域14侧具有一个场致氧化膜36,该场氧化物膜36形成在相对于终端接触半导体区域48的相对于单元区域14侧的表面的部分上,被调整为更薄 在单元区域14侧并且与单元区域14侧相对较厚的场板53以及从端接触半导体区域48的表面穿过薄层场氧化膜32延伸到薄层场的表面的场板53 氧化膜34.版权所有(C)2007,JPO&INPIT
    • 2. 发明专利
    • Semiconductor device and manufacturing method thereof
    • 半导体器件及其制造方法
    • JP2006073615A
    • 2006-03-16
    • JP2004252463
    • 2004-08-31
    • Denso CorpToyota Central Res & Dev Lab Inc株式会社デンソー株式会社豊田中央研究所
    • HATSUTORI YOSHIKUNINAKAJIMA KYOKOYAMAGUCHI HITOSHIMAKINO TOMOATSU
    • H01L29/78H01L21/336H01L29/06H01L29/47H01L29/872
    • H01L29/7813H01L29/0634H01L29/0696H01L29/41741H01L29/66734H01L29/7811
    • PROBLEM TO BE SOLVED: To provide a semiconductor device capable of accepting variation in the quantity of impurities which is unavoidable when manufacturing SJ structure, and assuring a wanted breakdown strength, and to provide a method of manufacturing the semiconductor device at good yield.
      SOLUTION: The semiconductor device comprises a central region 12 where a semiconductor switching element is formed, and a peripheral region 14 formed around the central region 12. It comprises a drift layer 26 having SJ structure which is formed from the central region 12 to the peripheral region 14. Relating to a difference in the quantity of impurities at a p-type column and that of an n-type column constituting a pair, the difference in the pair positioned at the outermost periphery of the peripheral region 14 (25b and 27b)is smaller than the difference in the other pair positioned at the peripheral region 14 (25a and 27a). The difference in the pair positioned at the innermost periphery of the peripheral region 14 (25a and 27a) is larger than the pair positioned in the central region 12 (25 and 27).
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种能够接受在制造SJ结构时不可避免的杂质量的变化并确保想要的击穿强度的半导体器件,并提供以良好的收率制造半导体器件的方法 。 解决方案:半导体器件包括形成半导体开关元件的中心区域12和围绕中心区域12形成的周边区域14.它包括具有SJ结构的漂移层26,该漂移层26由中心区域12形成 关于p型柱和构成一对的n型列的杂质量的差异,位于周边区域14(25b)的最外周的一对的差异 和27b)小于位于周边区域14(25a和27a)的另一对中的差的差。 位于周边区域14(25a和27a)的最内周的对中的差大于位于中心区域12(25和27)中的一对。 版权所有(C)2006,JPO&NCIPI
    • 3. 发明专利
    • Semiconductor device
    • 半导体器件
    • JP2008103623A
    • 2008-05-01
    • JP2006286445
    • 2006-10-20
    • Denso Corp株式会社デンソー
    • SANO YUKIHIROKONDO ICHIJISAKAMOTO ZENJITOMISAKA MANABUMAKINO TOMOATSU
    • H01L23/473
    • H01L2224/48091H01L2224/73265H01L2924/1305H01L2924/13055H01L2924/00014H01L2924/00
    • PROBLEM TO BE SOLVED: To provide a semiconductor device having a cooling structure whose cooling efficiency is high. SOLUTION: A semiconductor device 100 comprises a power mold 10 and ceramic tubes 21, 22 of the both sides. The power mold 10 has a power element 15, and a pair of lead frames 12, 13 which sandwiches the power element, and exposes the outside surface of the lead frames 12, 13, and is molded by a resin 18. The ceramic tubes 21, 22 have cooling medium passages 23, 24 where cooling medium flows, and are jointed to the outside surface of the lead frames 12, 13 through metals 25, 26 for joint. Two opposite walls of the cooling medium passages 23, 24 of the ceramic tubes 21, 22 are different in thickness, and a wall with thin thickness is jointed to the outer surface of the lead frames 12, 13. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种具有冷却效率高的冷却结构的半导体器件。 解决方案:半导体器件100包括电源模具10和两侧的陶瓷管21,22。 电动模具10具有功率元件15和一对引线框架12,13,它们夹住功率元件,并且暴露引线框架12,13的外表面,并由树脂18模制。陶瓷管21 22具有冷却介质流动的冷却介质通道23,24,并且通过用于接合的金属25,26连接到引线框架12,13的外表面。 陶瓷管21,22的冷却介质通道23,24的两个相对的壁的厚度不同,并且具有薄的厚度的壁与引线框架12,13的外表面接合。版权所有(C) )2008,JPO&INPIT
    • 7. 发明专利
    • Manufacturing method of semiconductor device
    • 半导体器件的制造方法
    • JP2007027565A
    • 2007-02-01
    • JP2005210210
    • 2005-07-20
    • Denso Corp株式会社デンソー
    • TOMISAKA MANABUSANO YUKIHIROMIZUNO YOSHIAKIKONDO ICHIJIMAKINO TOMOATSU
    • H01L21/304B23D1/02
    • PROBLEM TO BE SOLVED: To provide a manufacturing method of a semiconductor device capable of suppressing fluctuation in element characteristics which is caused by static electricity occurring at grinding for insulating separation between electrodes.
      SOLUTION: A metal film 4 formed on the entire surface of a wafer is formed on the surface of a protective film 3 while the metal film 4 is formed by deposition, spatter, or vapor deposition, so that an unrequired part of the metal film 4 is removed along with a part of the protective film 3. At that time, removing of the unrequired part is performed by machining using a grounded bite 10. So, the static electricity that occurs at grinding and electric charges generated when the protective film 3 or the like is cut off are absorbed through the bite 10, resulting in preventing a semiconductor element from being charged.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 解决的问题:提供能够抑制在研磨时产生的静电引起的元件特性波动的半导体器件的制造方法,用于电极之间的绝缘分离。 解决方案:在保护膜3的表面上形成在晶片的整个表面上的金属膜4,同时通过沉积,溅射或气相沉积形成金属膜4,使得不需要的部分 金属膜4与保护膜3的一部分一起被去除。此时,通过使用接地咬合机10的机械加工来去除不需要的部件。因此,在研磨时发生的静电和当保护性 切断的薄膜3等被咬入10吸收,从而防止半导体元件带电。 版权所有(C)2007,JPO&INPIT
    • 8. 发明专利
    • Apparatus and method for producing silicon carbide single crystal
    • 用于生产碳化硅单晶的装置和方法
    • JP2008214146A
    • 2008-09-18
    • JP2007055500
    • 2007-03-06
    • Denso Corp株式会社デンソー
    • NAGAKUBO MASAOMAKINO TOMOATSU
    • C30B29/36C30B25/14
    • PROBLEM TO BE SOLVED: To provide a method for obtaining an SiC single crystal ingot having superior quality and a long size.
      SOLUTION: A silicon carbide single crystal 10 is grown by using a producing apparatus equipped with a plurality of gas introducing pipes 4a to introduce a mixed gas only to the center part 7a in the center part 7a and a periphery part 7b positioning around the center part on the crystal growing surface of a seed crystal 7 and a plurality of gas introducing pipes 4b to introduce the mixed gas only to the periphery part 7b in the center part 7a and the periphery part 7b and by increasing the ratio of the flow rate of a mixed gas flowing in the gas introducing pipes 4a for the center part to the total flow rate of the mixed gas flowing simultaneously in the gas introducing pipes 4a for the center part and gas introducing pipes 4b for the peripheral part along with the increase of the crystal growth of the silicon carbide single crystal 10.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种获得具有优良品质和长尺寸的SiC单晶锭的方法。 解决方案:通过使用配备有多个气体导入管4a的制造装置来生长碳化硅单晶10,以将混合气体仅引导到中心部分7a中的中心部分7a和周围部分7b 种子晶体7的晶体生长表面上的中心部分和多个气体导入管4b,以将混合气体仅引导到中心部分7a和周边部分7b中的周边部分7b,并且通过增加流体的比例 在中心部分的气体引入管4a中流动的混合气体的速率与在中心部分的气体导入管4a中同时流动的混合气体的总流量以及周边部分的气体导入管4b一起增加 的碳化硅单晶10的晶体生长。版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Semiconductor device and method of manufacturing same
    • 半导体器件及其制造方法
    • JP2007035926A
    • 2007-02-08
    • JP2005217014
    • 2005-07-27
    • Denso Corp株式会社デンソー
    • TOMISAKA MANABUFUKAYA AKINARINIIMI AKIHIROMAKINO TOMOATSUKONDO ICHIJI
    • H01L21/768H01L21/28H01L21/3205H01L23/52H01L23/522
    • PROBLEM TO BE SOLVED: To prevent two or more electrodes from being short-circuited to each other by burrs, in a method of manufacturing a semiconductor device wherein a metal film is divided into pieces by removing the metal film and a protective film by machining so as to form the electrodes.
      SOLUTION: The metal film 4 is formed by deposition, sputtering, or evaporation so as to prevent a corrosive medium from penetrating through a gap between the metal film 4 and the protective film 3. The metal film 4 is formed on all the surface of a wafer over the surface of the protective film 3, and thereafter the disused part of the metal film 4 is removed together with a part of the protective film 3. At this point, the disused part of the metal film 4 is removed by machining using a bite 10, the contact hole 3a of the protective film 3 is kept as a tapered plane so that the metal film 4 is tilted, and the various electrodes 4a can be prevented from being short-circuited to each other even if the burrs of the metal film 4 occur during machining.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了防止两个或更多个电极通过毛刺相互短路,在制造半导体器件的方法中,其中通过去除金属膜将金属膜分割成多个片和保护膜 通过机械加工形成电极。 解决方案:通过沉积,溅射或蒸发形成金属膜4,以防止腐蚀性介质穿过金属膜4和保护膜3之间的间隙。金属膜4形成在所有 在保护膜3的表面上的晶片表面,然后与保护膜3的一部分一起去除金属膜4的废弃部分。此时,金属膜4的废弃部分被除去 使用咬入口10加工,保护膜3的接触孔3a保持为锥形平面,使得金属膜4倾斜,并且可以防止各种电极4a彼此短路,即使毛刺 的金属膜4发生在加工过程中。 版权所有(C)2007,JPO&INPIT