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    • 7. 发明申请
    • GROUP III-NITRIDE-BASED COMPOUND SEMICONDUCTOR DEVICE
    • 基于III-NITRIDE的化合物半导体器件
    • WO2005029595A1
    • 2005-03-31
    • PCT/JP2004/013082
    • 2004-09-01
    • TOYODA GOSEI CO., LTD.TAKI, Tetsuya
    • TAKI, Tetsuya
    • H01L33/00
    • H01L33/32H01L33/02H01L33/14
    • In a group III-nitride-based compound semiconductor device 100, an intermediate layer 108 is 5 provided between a p-AlGaN layer 107 and a p-GaN layer 109, to each of which an acceptor impurity is added. On this occasion, the intermediate layer 108 is doped with a donor impurity in a concentration, by which holes generated by an acceptor impurity introduced into the intermediate layer 108 during the formation of the p-AlGaN layer 107 are substantially compensated. As a result, the conductivity of the intermediate layer 108 becomes extremely low, and therefore the electrostatic withstand voltage of the group III-nitride-based compound semiconductor device 100 improves significantly.
    • 在III族氮化物类化合物半导体器件100中,在p-AlGaN层107和p-GaN层109之间设置中间层108,其中添加受主杂质。 在这种情况下,中间层108被掺杂有施主杂质,其浓度通过在形成p-AlGaN层107期间由引入到中间层108中的受主杂质产生的空穴被基本上补偿。 结果,中间层108的导电性变得非常低,因此III族氮化物系化合物半导体器件100的静电耐受电压显着提高。