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    • 12. 发明专利
    • Semiconductor device and reverse conducting igbt
    • 半导体器件和反向导通IGBT
    • JP2012151470A
    • 2012-08-09
    • JP2012001955
    • 2012-01-10
    • Infineon Technologies Austria Agインフィネオン テクノロジーズ オーストリア アクチエンゲゼルシャフト
    • FRANK DIETER PFIRSCH
    • H01L27/04H01L29/739H01L29/78
    • H01L29/7395H01L29/0696H01L29/0834H01L29/1095H01L29/7397H01L29/7802H01L29/7813
    • PROBLEM TO BE SOLVED: To provide a semiconductor device and a reverse conducting IGBT.SOLUTION: A semiconductor device is provided. The semiconductor device includes a semiconductor body (40) with a base region (1), and a first electrode (10) arranged on a main horizontal surface (15) of the semiconductor body (40). The semiconductor body (40) further includes an IGBT-cell (110) with a body region (2) forming a first pn-junction (9) with the base region (1), and a diode-cell (120) with an anode region (2a) forming a second pn-junction (9a) with the base region (1). A source region (3) in ohmic contact with the first electrode (10) and an anti-latch-up region (4) in ohmic contact with the first electrode (10) are, in a vertical cross-section, only formed in the IGBT-cell (110). The anti-latch-up region (4) has higher maximum doping concentration than the body region (2). Further a reverse conducting IGBT is provided.
    • 要解决的问题:提供半导体器件和反向导通IGBT。 解决方案:提供半导体器件。 半导体器件包括具有基极区域(1)的半导体本体(40)和布置在半导体本体(40)的主水平表面(15)上的第一电极(10)。 半导体本体(40)还包括具有与基极区(1)形成第一pn结(9)的体区(2)的IGBT单元(110)和具有阳极的二极管单元(120) 与所述基极区域(1)形成第二pn结(9a)的区域(2a)。 与第一电极(10)欧姆接触的源区(3)和与第一电极(10)欧姆接触的防闩锁区域(4)在垂直截面中仅形成在 IGBT单元(110)。 防闩锁区域(4)具有比身体区域(2)更高的最大掺杂浓度。 此外,提供反向导通IGBT。 版权所有(C)2012,JPO&INPIT
    • 14. 发明专利
    • Silicon carbide trench semiconductor device
    • 硅碳化硅半导体器件
    • JP2012044167A
    • 2012-03-01
    • JP2011166865
    • 2011-07-29
    • Infineon Technologies Austria Agインフィネオン テクノロジーズ オーストリア アクチエンゲゼルシャフト
    • MICHAEL TROYSIEMIENIEC RALF
    • H01L29/12H01L29/78
    • H01L29/1608H01L29/1095H01L29/4236H01L29/66068H01L29/7813
    • PROBLEM TO BE SOLVED: To provide a silicon carbide trench semiconductor device.SOLUTION: A semiconductor device includes a silicon carbide semiconductor body. A trench extends into the silicon carbide semiconductor body on a first surface. A gate dielectric and a gate electrode are formed within the trench. A body region of a first conductivity type contacts with a sidewall of the trench. The body region is electrically coupled to a contact via a body contact region containing a higher maximum dopant concentration than that of the body region. An extension region of the first conductivity type is electrically coupled to the contact via the body region. A maximum dopant concentration in the extension region along a vertical direction perpendicular to the first surface is higher than the maximum dopant concentration of the body region along the vertical direction. A distance between the first surface and a bottom of the extension region is larger than a distance between the first surface and a bottom of the trench.
    • 要解决的问题:提供一种碳化硅沟槽半导体器件。 解决方案:半导体器件包括碳化硅半导体本体。 沟槽在第一表面上延伸到碳化硅半导体本体中。 栅极电介质和栅电极形成在沟槽内。 第一导电类型的主体区域与沟槽的侧壁接触。 身体区域通过体内接触区域电耦合到接触区,该接触区域包含比身体区域更高的最大掺杂剂浓度。 第一导电类型的延伸区域通过身体区域电耦合到接触件。 沿着与第一表面垂直的垂直方向的延伸区域中的最大掺杂剂浓度高于沿着垂直方向的主体区域的最大掺杂剂浓度。 延伸区域的第一表面和底部之间的距离大于沟槽的第一表面和底部之间的距离。 版权所有(C)2012,JPO&INPIT