CN105932092A - 单势垒型InGaAsSb红外探测器 - Google Patents

单势垒型InGaAsSb红外探测器 Download PDF

Info

Publication number
CN105932092A
CN105932092A CN201610414401.0A CN201610414401A CN105932092A CN 105932092 A CN105932092 A CN 105932092A CN 201610414401 A CN201610414401 A CN 201610414401A CN 105932092 A CN105932092 A CN 105932092A
Authority
CN
China
Prior art keywords
ingaassb
layer
barrier
contact layer
gasb
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610414401.0A
Other languages
English (en)
Inventor
向伟
王国伟
徐应强
郝宏玥
韩玺
任正伟
贺振宏
牛智川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institute of Semiconductors of CAS
Original Assignee
Institute of Semiconductors of CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Institute of Semiconductors of CAS filed Critical Institute of Semiconductors of CAS
Priority to CN201610414401.0A priority Critical patent/CN105932092A/zh
Publication of CN105932092A publication Critical patent/CN105932092A/zh
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/08Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof in which radiation controls flow of current through the device, e.g. photoresistors
    • H01L31/10Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof in which radiation controls flow of current through the device, e.g. photoresistors characterised by potential barriers, e.g. phototransistors
    • H01L31/101Devices sensitive to infrared, visible or ultraviolet radiation
    • H01L31/102Devices sensitive to infrared, visible or ultraviolet radiation characterised by only one potential barrier
    • H01L31/109Devices sensitive to infrared, visible or ultraviolet radiation characterised by only one potential barrier the potential barrier being of the PN heterojunction type
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/0248Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by their semiconductor bodies
    • H01L31/0256Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by their semiconductor bodies characterised by the material
    • H01L31/0264Inorganic materials
    • H01L31/0304Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds
    • H01L31/03046Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds including ternary or quaternary compounds, e.g. GaAlAs, InGaAs, InGaAsP

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Light Receiving Elements (AREA)

Abstract

一种单势垒型InGaAsSb红外探测器,包括:一GaSb衬底;一下接触层,其制作在GaSb衬底上;一复合层,其制作在下接触层上;一上接触层,其制作在复合层上。本发明可以针对目前应变InGaAs探测器的缺陷,该单势垒型InGaAsSb红外探测器具有暗电流小,低噪声的优点。

Description

单势垒型InGaAsSb红外探测器
技术领域
本发明涉及光探测器技术领域,特别是一种单势垒型InGaAsSb红外探测器,其可输出2-3μm的红外光电探测器。
背景技术
2-3μm的红外光电探测器具有广泛的用途,这个波长范围内红外线能很好的穿透烟雾,夜晚时也可以利用大气辉光成像,在军事、遥感方面有重要的应用。
目前大部分2-3μm的红外探测器采用的是在InP衬底上外延生长的扩展波长的应变InGaAs,高In组分的InGaAs与InP衬底晶格不匹配,生长时弛豫过程中产生大量的位错,因此器件工作时产生大量的暗电流,导致器件性能难以提升。
而在GaSb衬底上外延与之晶格匹配的InGaAsSb可以获得很高的材料质量,缺陷密度低,在工作时能降低暗电流。同时采用与GaSb晶格匹配的AlGaAsSb或者接近匹配的AlGaSb作为势垒,AlGaAsSb的好处是其能带中的导带高于InGaAsSb,价带也高于InGaAsSb,是一个良好的电子势垒,同时又不阻碍空穴的输运,这样在不影响量子效率的同时,又降低了暗电流,进一步提高了器件性能。
发明内容
本发明的目的是提供一种单势垒型InGaAsSb红外探测器,以针对目前应变InGaAs探测器的缺陷,该单势垒型InGaAsSb红外探测器具有暗电流小,低噪声的优点。
本发明提供一种一种单势垒型InGaAsSb红外探测器,包括:
一GaSb衬底;
一下接触层,其制作在GaSb衬底上;
一复合层,其制作在下接触层上;
一上接触层,其制作在复合层上。
本发明的有益效果是:
采用了与GaSb晶格匹配的InGaAsSb材料作为吸收区,相对于应变InGaAs来说,提高了材料质量,降低了缺陷密度,降低器件工作时的暗电流,从而提高了器件性能。通过调节In的组分,器件吸收光的截止波长从2-3μm可以自由调节,同时通过调节As的组分,同时还能保证InGaAsSb与GaSb晶格匹配。
同时在器件结构设计中,插入了与GaSb晶格匹配的AlGaAsSb或者接近匹配的AlGaSb,同样能把保证材料与GaSb衬底不发生弛豫,保证了材料质量。AlGaAsSb的好处是其能带相对于InGaAsSb来说,导带高于InGaAsSb,价带也高于InGaAsSb,是一个良好的电子势垒,同时又不阻碍空穴的输运,这样在不影响量子效率的同时,又降低了暗电流,进一步提高了器件性能。
附图说明
为进一步说明本发明的技术内容,以下结合实施例及附图详细说明如后,其中:
图1是本发明的结构示意图。
图2是图1的第一实施例的结构示意图。
图3是图1的第二实施例的结构示意图。
具体实施方式
请参阅图1-图3所示,本发明提供一种单势垒型InGaAsSb红外探测器,包括:
一GaSb衬底10;
一下接触层20,其制作在GaSb衬底10上,所述复合层30为势垒层32和制作在其上的光吸收层31时,下接触层20的材料为P型GaSb、N型GaSb、P型InGaAsSb,上接触层40的材料为N型InGaAsSb;
一复合层30,其制作在下接触层20上,所述复合层30包括光吸收层31和制作在其上的势垒层32(参阅图2);所述复合层30包括势垒层32和制作在其上的光吸收层31(参阅图3,为本发明的第二实施例),所述复合层30中的光吸收层31的材料为InGaAsSb,势垒层32的材料为AlGaSb或者AlGaAsSb,所述InGaAsSb光吸收层31与GaSb晶格匹配或者适配度小于1%,其具体组分为InxGa1-xAsySb1-y,其中x范围是0<x<1,y的范围是0<y<1,所述复合层30为光吸收层31和制作在其上的势垒层32时,下接触层20的材料为N型InGaAsSb,上接触层40的材料为P型GaSb、N型GaSb、P型InGaAsSb;
本发明的发明思想为采用与GaSb晶格匹配或者接近匹配的的InGaAsSb材料为吸收区,AlGaAsSb或AlGaSb当势垒区,上接触层有多种材料可以选择,可有分子束外延(MBE)或金属有机化合物化学气相沉淀(MOCVD)系统中外延。
为使本发明的目的、技术方案和优点更加清楚明白,以下结合具体实施例,并参照附图,对本发明作进一步的详细说明。
实施例1
结合图1和图2说明本实施例,结合图1说明本实施例,一种截止波长为2.7μm的InGaAsSb势垒型探测器,采用MBE系统,在N型GaSb衬底10上依次生长厚度为1.5μm,P型掺杂浓度为2×1018cm-3的GaSb作为下接触层20,以用于制备下电极接触,接线引出形成探测器的下电极;非故意掺杂,厚度为0.4μm的Al0.5Ga0.5As0.05Sb0.95势垒层32,其作用在于阻碍暗电流,降低噪声,同时由于其能带结构特点,也不会阻碍光生载流子;非故意掺杂,厚度为2μm的In0.27Ga0.83As0.25Sb0.85光吸收层31,用于吸收光生载流子;N型掺杂浓度为2×1018cm-3,厚度为0.5μm的In0.27Ga0.83As0.25Sb0.85为上接触层40,以用于制备上电极接触,接线引出成为探测器的上电极,形成InGaAsSb探测器。
实施例2
一种截止波长为2.7μm的InGaAsSb势垒型探测器,采用MBE系统,在N型GaSb衬底10上依次生长厚度为0.5μm的N型掺杂浓度为2×1018cm-3的In0.27Ga0.83As0.25Sb0.85作为下接触层20,以用于制备下电极接触,接线引出形成探测器的下电极;非故意掺杂,厚度为2μm的In0.27Ga0.83As0.25Sb0.85光吸收层31,用于吸收光;非故意掺杂,厚度为0.4μm的Al0.5Ga0.5As0.05Sb0.95势垒层32,其作用在于阻碍暗电流,降低噪声,同时由于其能带结构特点,也不会阻碍光生载流子;N型掺杂浓度为2×1018cm-3,厚度为0.5μm的In0.27Ga0.83As0.25Sb0.85为上接触层40,以用于制备上电极接触,接线引出成为探测器的上电极,形成InGaAsSb探测器。
本发明公开了一种用于射频微电子机械系统(RF MEMS)器件的低电学损耗真空封装结构,所述封装结构包括:低电学损耗的平面引线和垂直引线封装盖片结构,通过引入接地结构、电磁屏蔽层以及增加输入、输出端口间距等降低寄生效应、减小信号馈通,实现RF MEMS器件的低损耗、高可靠性真空封装。待键合的晶片置于真空环境,通过施加特定的键合压力以及键合温度,完成射频器件基片和封装盖片的真空气密性键合。本发明公开的用于RF MEMS器件的低电学损耗真空封装结构,能有效抑制寄生效应对射频微弱信号的干扰,实现各种RF MEMS器件的圆片级或芯片级真空封装。
以上所述的具体实施例,对本发明的目的、技术方案和有益效果进行了进一步详细说明,应理解的是,以上所述仅为本发明的具体实施例而已,并不用于限制本发明,凡在本发明的精神和原则之内,所做的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (7)

1.一种单势垒型InGaAsSb红外探测器,包括:
一GaSb衬底;
一下接触层,其制作在GaSb衬底上;
一复合层,其制作在下接触层上;
一上接触层,其制作在复合层上。
2.如权利要求1所述的单势垒型InGaAsSb红外探测器,其中所述复合层包括光吸收层和制作在其上的势垒层。
3.如权利要求2所述的单势垒型InGaAsSb红外探测器,其中所述复合层包括势垒层和制作在其上的光吸收层。
4.如权利要求2或3所述的单势垒型InGaAsSb红外探测器,其中所述复合层中的光吸收层的材料为InGaAsSb,势垒层的材料为AlGaSb或者AlGaAsSb。
5.如权利要求2或3所述的单势垒型InGaAsSb红外探测器,其中所述InGaAsSb光吸收层与GaSb晶格匹配或者适配度小于1%,其具体组分为InxGa1-xAsySb1-y,其中x范围是0<x<1,y的范围是0<y<1。
6.如权利要求2所述的单势垒型InGaAsSb红外探测器,其中所述复合层为光吸收层和制作在其上的势垒层时,下接触层的材料为N型InGaAsSb,上接触层的材料为P型GaSb、N型GaSb、P型InGaAsSb。
7.如权利要求3所述的单势垒型InGaAsSb红外探测器,其中所述复合层为势垒层和制作在其上的光吸收层时,下接触层的材料为P型GaSb、N型GaSb、P型InGaAsSb,上接触层的材料为N型InGaAsSb。
CN201610414401.0A 2016-06-13 2016-06-13 单势垒型InGaAsSb红外探测器 Pending CN105932092A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610414401.0A CN105932092A (zh) 2016-06-13 2016-06-13 单势垒型InGaAsSb红外探测器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610414401.0A CN105932092A (zh) 2016-06-13 2016-06-13 单势垒型InGaAsSb红外探测器

Publications (1)

Publication Number Publication Date
CN105932092A true CN105932092A (zh) 2016-09-07

Family

ID=56832818

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610414401.0A Pending CN105932092A (zh) 2016-06-13 2016-06-13 单势垒型InGaAsSb红外探测器

Country Status (1)

Country Link
CN (1) CN105932092A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110993709A (zh) * 2019-12-17 2020-04-10 中国科学院半导体研究所 应变补偿型量子级联探测器
CN113363341A (zh) * 2021-06-24 2021-09-07 湖南汇思光电科技有限公司 一种PIN型InGaAsSb探测器及其制备方法
CN113594290A (zh) * 2020-04-30 2021-11-02 成都英飞睿技术有限公司 一种延伸波长响应截止探测器及其制作方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102224603A (zh) * 2008-09-25 2011-10-19 加利福尼亚技术学院 具有可调节截止波长的高工作温度势垒红外检测器
US20120145996A1 (en) * 2010-10-22 2012-06-14 California Institute Of Technology Barrier infrared detector
US8299497B1 (en) * 2010-06-30 2012-10-30 Sandia Corporation Near-infrared photodetector with reduced dark current

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102224603A (zh) * 2008-09-25 2011-10-19 加利福尼亚技术学院 具有可调节截止波长的高工作温度势垒红外检测器
US8299497B1 (en) * 2010-06-30 2012-10-30 Sandia Corporation Near-infrared photodetector with reduced dark current
US20120145996A1 (en) * 2010-10-22 2012-06-14 California Institute Of Technology Barrier infrared detector

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
T. N. DANILOVA等: "Light-Emitting Diodes Based on GaSb Alloys for the 1.6–4.4mm Mid-Infrared Spectral Range", 《SEMICONDUCTORS》 *
刘延祥: "GaInAsSb/GaSb PIN红外探测器及其I-V特性的研究", 《红外》 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110993709A (zh) * 2019-12-17 2020-04-10 中国科学院半导体研究所 应变补偿型量子级联探测器
CN110993709B (zh) * 2019-12-17 2021-08-20 中国科学院半导体研究所 应变补偿型量子级联探测器
CN113594290A (zh) * 2020-04-30 2021-11-02 成都英飞睿技术有限公司 一种延伸波长响应截止探测器及其制作方法
CN113594290B (zh) * 2020-04-30 2023-09-08 成都英飞睿技术有限公司 一种延伸波长响应截止探测器及其制作方法
CN113363341A (zh) * 2021-06-24 2021-09-07 湖南汇思光电科技有限公司 一种PIN型InGaAsSb探测器及其制备方法

Similar Documents

Publication Publication Date Title
CN105720130B (zh) 基于量子阱带间跃迁的光电探测器
TWI376815B (zh)
CN104465853B (zh) 一种雪崩光电二极管及其制作方法
CN103545398A (zh) 基区渐变的单向载流子传输的双异质结光敏晶体管探测器
CN104576807A (zh) 半导体器件
CN105932092A (zh) 单势垒型InGaAsSb红外探测器
CN109494275A (zh) 一种AlGaN基日盲紫外光电晶体管探测器及其制作方法
Inada et al. MOVPE grown InGaAs/GaAsSb type II quantum well photodiode for SWIR focal plane array
CN109148636A (zh) 一种单光子探测器及其制备方法
US9324900B2 (en) Method of fabricating a superlattice structure
JP2018056381A (ja) 半導体装置及びその製造方法
Wang et al. Review of quantum dot-in-a-well infrared photodetectors and prospect of new structures
Zhao et al. A study on the spectral response of back-illuminated pin AlGaN heterojunction ultraviolet photodetector
CN108257986A (zh) 平面型AlGaN紫外探测器阵列结构及其制作方法
JP6613923B2 (ja) 半導体積層体、受光素子および半導体積層体の製造方法
JP6589662B2 (ja) 半導体積層体および受光素子
JP6454981B2 (ja) 半導体積層体および受光素子
CN112204756A (zh) 在缓冲器上方形成的光电子器件
US11495707B2 (en) AlGaN unipolar carrier solar-blind ultraviolet detector and manufacturing method thereof
CN111106203B (zh) 红外探测器及其制作方法
WO2012002144A1 (ja) 受光素子およびその製造方法
CN108417662B (zh) 一种自带信号放大功能氮化镓基射线探测器及其制备方法
CN100590874C (zh) 单片集成砷化镓基mhemt和pin二极管材料结构
US11081605B2 (en) Semiconductor laminate, light-receiving element, and method for manufacturing semiconductor laminate
EP3806152B1 (en) A method of forming a semiconductor device structure

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160907

WD01 Invention patent application deemed withdrawn after publication