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    • 5. 发明公开
    • 반도체 광소자의 제조 방법
    • 制造半导体光学器件的方法
    • KR1020080084541A
    • 2008-09-19
    • KR1020070114724
    • 2007-11-12
    • 미쓰비시덴키 가부시키가이샤
    • 하나마키요시히코오노켄이치
    • H01S5/00H01L33/36
    • H01S5/0421H01L33/02H01L33/305H01S5/3054
    • A method for manufacturing a semiconductor optical device is provided to avoid reduction in dopant density of a p-BDR(Band Discontinuity Reduction) layer by preventing the impurity diffusion from the p-BDR layer to a contact layer. A method for manufacturing a semiconductor optical device includes the steps of: forming a BDR(Band Discontinuity Reduction) layer of a first conductivity type doped with a first impurity; depositing a contact layer of the first conductivity type in contact with the BDR layer, after formation of the BDR layer, wherein the contact layer is doped with the first impurity and a second impurity and is used to form an electrode; and heat treating after forming the contact layer. The first conductivity type is a p type and the first impurity is one of Mg, Be, and Zn. The contact layer is GaAs, and the BDR layer is InGaP.
    • 提供一种制造半导体光学器件的方法,以通过防止从p-BDR层到接触层的杂质扩散来避免p-BDR(带断续降低)层的掺杂剂密度的降低。 一种制造半导体光学器件的方法包括以下步骤:形成掺杂有第一杂质的第一导电类型的BDR(带断续降低)层; 在形成BDR层之后,沉积与BDR层接触的第一导电类型的接触层,其中接触层掺杂有第一杂质和第二杂质,并用于形成电极; 并在形成接触层之后进行热处理。 第一导电类型是p型,第一杂质是Mg,Be和Zn之一。 接触层是GaAs,BDR层是InGaP。