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    • 1. 发明申请
    • Semiconductor device
    • 半导体器件
    • US20050145884A1
    • 2005-07-07
    • US10902120
    • 2004-07-30
    • Masanobu NogomeAkiyoshi TamuraKeiichi Murayama
    • Masanobu NogomeAkiyoshi TamuraKeiichi Murayama
    • H01L21/331H01L29/737H01L29/739
    • H01L29/7371H01L29/0821
    • It is the object of the present invention to provide a semiconductor device having an improved breakdown voltage on high power output, the semiconductor device comprising a n-type GaAs subcollector layer 101, a n-type GaAs intermediate collector layer 102 formed between a collector layer 103 and the subcollector layer 101, the n-type GaAs collector layer 103, a p-type GaAs base layer 104, a n-type InGaP second emitter layer 105, a n-type GaAs first emitter layer 106, and a n-type InGaAs emitter contact layer 107, and a concentration of impurities in the intermediate collector layer 102 is higher than a concentration of impurities in the collector layer 103 and is lower than a concentration of impurities in the subcollector layer 101.
    • 本发明的目的是提供一种在高功率输出上具有改进的击穿电压的半导体器件,该半导体器件包括n型GaAs子集电极层101,n型GaAs中间集电极层102,其形成在集电极层 103和子集电极层101,n型GaAs集电极层103,p型GaAs基极层104,n型InGaP第二发射极层105,n型GaAs第一发射极层106和n型 InGaAs发射极接触层107,并且中间集电极层102中的杂质浓度高于集电极层103中的杂质浓度,并且低于子集电极层101中的杂质浓度。
    • 2. 发明授权
    • Hetero-junction bipolar transistor and manufacturing method thereof
    • 异质结双极晶体管及其制造方法
    • US07176099B2
    • 2007-02-13
    • US11100511
    • 2005-04-07
    • Keiichi MurayamaAkiyoshi TamuraMasanobu Nogome
    • Keiichi MurayamaAkiyoshi TamuraMasanobu Nogome
    • H01L21/8222
    • H01L29/0821H01L29/7371
    • A hetero-junction bipolar transistor that satisfies high resistance required to avoid a potential breakdown includes: an n-type sub-collector layer 110 that is made of GaAs; an n-type first collector 121 that is made of a semiconductor material with a smaller avalanche coefficient than that of the sub-collector 110 and is formed on the sub-collector layer 110; a second collector layer 132 that is made of n-type or i-type GaAs with lower dopant concentration than that of the sub-collector layer 110 and is formed on the first collector layer 121; a p-type base layer 133 that is made of GaAs and is formed on the second collector layer 132; and emitter layer 134 that is made of a semiconductor material with a larger band gap than that of the base layer 133 and is formed on the base layer 133.
    • 满足避免电位击穿所需的高电阻的异质结双极晶体管包括:由GaAs制成的n型子集电极层110; 形成在副集电极层110上的由具有比亚集电体110的雪崩系数小的半导体材料制成的n型第一集电体121; 第二集电体层132由n型或i型GaAs制成,掺杂浓度低于副集电极层110的掺杂浓度,并形成在第一集电极层121上; 由GaAs制成并形成在第二集电层132上的p型基极层133; 以及由具有比基极层133的带隙大的带隙的半导体材料制成并且形成在基极层133上的发射极层134。
    • 3. 发明授权
    • Semiconductor device
    • 半导体器件
    • US07091528B2
    • 2006-08-15
    • US10902120
    • 2004-07-30
    • Masanobu NogomeAkiyoshi TamuraKeiichi Murayama
    • Masanobu NogomeAkiyoshi TamuraKeiichi Murayama
    • H01L31/328
    • H01L29/7371H01L29/0821
    • A semiconductor device is provided having an improved breakdown voltage on high power output, the semiconductor device comprising a n-type GaAs subcollector layer, a n-type GaAs intermediate collector layer formed between a collector layer and the subcollector layer, the n-type GaAs collector layer, a p-type GaAs base layer, a n-type InGaP second emitter layer, a n-type GaAs first emitter layer, and a n-type InGaAs emitter contact layer, and a concentration of impurities in the intermediate collector layer is higher than a concentration of impurities in the collector layer and is lower than a concentration of impurities in the subcollector layer.
    • 提供了一种在高功率输出上具有改进的击穿电压的半导体器件,该半导体器件包括n型GaAs子集电极层,形成在集电极层和子集电极层之间的n型GaAs中间集电极层,n型GaAs 集电极层,p型GaAs基极层,n型InGaP第二发射极层,n型GaAs第一发射极层和n型InGaAs发射极接触层,中间集电极层中的杂质浓度为 高于集电体层中的杂质浓度,并且低于子集电极层中的杂质浓度。
    • 10. 发明授权
    • Heterojunction bipolar transistor and manufacturing method thereof
    • 异质结双极晶体管及其制造方法
    • US07728357B2
    • 2010-06-01
    • US11614113
    • 2006-12-21
    • Keiichi MurayamaAkiyoshi TamuraHirotaka MiyamotoKenichi Miyajima
    • Keiichi MurayamaAkiyoshi TamuraHirotaka MiyamotoKenichi Miyajima
    • H01L29/739
    • H01L29/7371H01L29/0821H01L29/66318
    • The object of the present invention is to provide a heterojunction bipolar transistor with high breakdown tolerance which can be manufactured at a high reproducibility and a high yield, the heterojunction bipolar transistor includes: a sub-collector layer; a collector layer formed on the sub-collector layer; a base layer formed on the collector layer; and an emitter layer, which is formed on the base layer and is made of a semiconductor that has a larger bandgap than a semiconductor of the base layer, in which the collector layer includes: a first collector layer formed on the sub-collector layer; a second collector layer formed on the first collector layer; and a third collector layer formed between the second collector layer and the base layer, a semiconductor of the first collector layer differs from semiconductors of the third collector layer and the second collector layer, and an impurity concentration of the second collector layer is lower than an impurity concentration of the sub-collector layer and higher than an impurity concentration of the third collector layer.
    • 本发明的目的是提供一种能够以高再现性和高产率制造的具有高击穿耐受性的异质结双极晶体管,该异质结双极晶体管包括:亚集电极层; 形成在所述副集电极层上的集电体层; 形成在集电体层上的基层; 以及发射极层,其形成在所述基底层上并且由具有比所述基底层的半导体更大的带隙的半导体形成,所述集电极层包括:形成在所述副集电极层上的第一集电体层; 形成在所述第一集电体层上的第二集电体层; 以及形成在所述第二集电体层和所述基极层之间的第三集电体层,所述第一集电体层的半导体与所述第三集电体层和所述第二集电体层的半导体不同,所述第二集电体层的杂质浓度低于 副集电极层的杂质浓度高于第三集电体层的杂质浓度。