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    • 5. 发明申请
    • OPTICAL SEMICONDUCTOR DEVICE
    • 光学半导体器件
    • US20090261441A1
    • 2009-10-22
    • US12400346
    • 2009-03-09
    • Hisatada YasukawaHironari TakeharaTakaki Iwai
    • Hisatada YasukawaHironari TakeharaTakaki Iwai
    • H01L31/02H01L31/112
    • H01L31/103G11B7/13G11B2007/0006
    • An optical semiconductor device includes a light-receiving element on a semiconductor substrate of a first conductivity type, the light-receiving element including a light-receiving portion for converting incident light to an electrical current signal and performing a current amplification. The light-receiving portion includes: a semiconductor layer formed on the semiconductor substrate and having an impurity concentration substantially equal to or less than that of the semiconductor substrate; a first semiconductor region of a second conductivity type formed on the semiconductor layer and having an impurity concentration higher than that of the semiconductor layer; and a second semiconductor region of the first conductivity type selectively formed between the semiconductor substrate and the semiconductor layer and having an impurity concentration higher than those of the semiconductor substrate and the semiconductor layer.
    • 光学半导体器件包括在第一导电类型的半导体衬底上的光接收元件,该光接收元件包括用于将入射光转换成电流信号并执行电流放大的光接收部分。 光接收部分包括:形成在半导体衬底上并具有基本上等于或小于半导体衬底的杂质浓度的杂质浓度的半导体层; 在所述半导体层上形成的杂质浓度高于所述半导体层的杂质浓度的第二导电类型的第一半导体区域; 以及第一导电类型的第二半导体区域,其选择性地形成在半导体衬底和半导体层之间,并且具有比半导体衬底和半导体层的杂质浓度更高的杂质浓度。
    • 7. 发明授权
    • Semiconductor photodetector device
    • 半导体光电探测器
    • US07768090B2
    • 2010-08-03
    • US11968357
    • 2008-01-02
    • Hisatada Yasukawa
    • Hisatada Yasukawa
    • H01L31/062
    • H01L31/101H01L27/1443
    • A semiconductor photodetector device includes a light receiving operation section converting incident light to an electric signal and a current amplifying operation section amplifying the electric signal. The light receiving operation section includes: a first conductivity type semiconductor layer a formed on a first conductivity type semiconductor substrate; a second conductivity type first semiconductor region formed on the semiconductor layer; and a first conductivity type second semiconductor region formed on the semiconductor layer and separated from the first semiconductor region. The current amplifying operation section includes: the second semiconductor region; a second conductivity type third semiconductor region formed in the semiconductor substrate; a second conductivity type fourth semiconductor region formed on the third semiconductor region and separated from the second semiconductor region.
    • 半导体光检测器件包括将入射光转换成电信号的光接收操作部分和放大电信号的电流放大操作部分。 光接收操作部分包括:形成在第一导电类型半导体衬底上的第一导电类型半导体层a; 形成在所述半导体层上的第二导电型第一半导体区域; 以及形成在半导体层上并与第一半导体区分离的第一导电型第二半导体区域。 电流放大操作部分包括:第二半导体区域; 形成在半导体衬底中的第二导电类型的第三半导体区域; 形成在第三半导体区域上并与第二半导体区域分离的第二导电型第四半导体区域。
    • 10. 发明授权
    • Semiconductor photodetector device
    • 半导体光电探测器
    • US07211829B2
    • 2007-05-01
    • US11059500
    • 2005-02-17
    • Hisatada YasukawaRyouichi ItoTakaki IwaiMasaki TaniguchiYasushi Jin
    • Hisatada YasukawaRyouichi ItoTakaki IwaiMasaki TaniguchiYasushi Jin
    • H01L27/15H01L31/113
    • H01L27/1443H01L31/0288H01L31/103Y02E10/50
    • A semiconductor photodetector device includes: a first semiconductor layer of a first conductivity type; and a second semiconductor layer of a second conductivity type formed on the first semiconductor layer and having a light-receiving region. The first semiconductor layer includes a first region containing an impurity of the first conductivity type at a high concentration and a second region formed on the first region and containing an impurity of the first conductivity type at a concentration lower than that of the first region. The second semiconductor layer includes a third region containing an impurity of the second conductivity type at a concentration higher than that of the second region and a fourth region formed on the third region and containing an impurity of the second conductivity type at a concentration higher than that of the third region.
    • 一种半导体光检测器件包括:第一导电类型的第一半导体层; 以及形成在第一半导体层上并具有光接收区域的第二导电类型的第二半导体层。 第一半导体层包括含有高浓度的第一导电类型的杂质的第一区域和形成在第一区域上并且含有浓度低于第一区域的浓度的第一导电类型杂质的第二区域。 第二半导体层包括含有浓度高于第二区域的第二导电类型的杂质的第三区域和形成在第三区域上的第四区域,并且含有浓度高于第二区域的浓度的第二导电类型的杂质。 的第三个地区。