CN103094361B - 一种SiGe HBT工艺中的PIS电容器及其制造方法 - Google Patents

一种SiGe HBT工艺中的PIS电容器及其制造方法 Download PDF

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CN103094361B
CN103094361B CN201110343136.9A CN201110343136A CN103094361B CN 103094361 B CN103094361 B CN 103094361B CN 201110343136 A CN201110343136 A CN 201110343136A CN 103094361 B CN103094361 B CN 103094361B
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trap
capacitor
pis
epitaxial layer
heavily doped
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CN103094361A (zh
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刘冬华
段文婷
钱文生
胡君
石晶
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Shanghai Huahong Grace Semiconductor Manufacturing Corp
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/86Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
    • H01L29/92Capacitors having potential barriers
    • H01L29/94Metal-insulator-semiconductors, e.g. MOS
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/66007Multistep manufacturing processes
    • H01L29/66075Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
    • H01L29/66083Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by variation of the electric current supplied or the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. two-terminal devices
    • H01L29/66181Conductor-insulator-semiconductor capacitors, e.g. trench capacitors

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Abstract

本发明公开了一种SiGe?HBT工艺中的PIS电容器,包括:硅衬底、浅沟槽隔离、P阱、P型重掺杂区、氧化层、锗硅外延层、隔离侧墙、接触孔和金属线,所述硅衬底上具有浅沟槽隔离和P阱,所述P阱上具有P型重掺杂区,所述浅沟槽隔离与P阱、P型重掺杂区相邻,所述P型重掺杂区上具有氧化层,所述氧化层上具有锗硅外延层,所述隔离侧墙与氧化层、锗硅外延层相邻,所述P阱和锗硅外延层通过接触孔引出连接金属线作为电容器的两端。本发明还公开了所述PIS电容器的制作方法。本发明的PIS电容器及其制造方法打破SiGe?HBT工艺中没有PIS电容相关结构的局限,使SiGe?HBT工艺增加一种器件选择。

Description

一种SiGe HBT工艺中的PIS电容器及其制造方法
技术领域
本发明涉及集成电路制造领域,特别是涉及一种SiGeHBT工艺中的PIS电容器。本发明还涉及一种SiGeHBT工艺中的PIS电容器的制造方法。
背景技术
在射频应用中,需要越来越高的器件特征频率,RFCMOS虽然在先进的工艺技术中可实现较高频率,但还是难以完全满足射频要求,如很难实现40GHz以上的特征频率,而且先进工艺的研发成本也是非常高;化合物半导体可实现非常高的特征频率器件,但由于材料成本高、尺寸小的缺点,加上大多数化合物半导体有毒,限制了其应用。SiGeHBT则是超高频器件的很好选择,首先其利用SiGe与Si的能带差别,提高发射区的载流子注入效率,增大器件的电流放大倍数;其次利用SiGe基区的高掺杂,降低基区电阻,提高特征频率;另外SiGe工艺基本与硅工艺相兼容,因此SiGeHBT已经成为超高频器件的主力军。
常规的SiGeHBT采用高掺杂的集电区埋层,以降低集电区电阻,另外采用深槽隔离降低集电区和衬底之间的寄生电容,改善HBT的频率特性。该器件工艺成熟可靠,但主要缺点有:1。集电区外延成本高;2。深槽隔离工艺复杂,而且成本较高,功能单一。
发明内容
本发明要解决的技术问题是一种SiGeHBT工艺中的PIS电容器打破SiGeHBT工艺中没有PIS电容相关结构的局限,使SiGeHBT工艺增加一种器件选择。
为解决上述技术问题,本发明的SiGeHBT工艺中的PIS电容器,包括:硅衬底、浅沟槽隔离、P阱、P型重掺杂区、氧化层、锗硅外延层、隔离侧墙、接触孔和金属线,所述硅衬底上具有浅沟槽隔离和P阱,所述P阱上具有P型重掺杂区,所述浅沟槽隔离与P阱、P型重掺杂区相邻,所述P型重掺杂区上具有氧化层,所述氧化层上具有锗硅外延层,所述隔离侧墙与氧化层、锗硅外延层相邻,所述P阱和锗硅外延层通过接触孔引出连接金属线作为电容器的两端。
所述P阱中具有硼。
所述P型重掺杂区中具有硼或氟化硼。
所述锗硅外延层中具有硼或氟化硼。
所述氧化层厚度为5纳米~30纳米。
本发明SiGeHBT工艺中的PIS电容器的制作方法,包括:
(1)在硅衬底上注入形成P阱;
(2)制作浅沟槽隔离;
(3)P型重掺杂注入形成P型重掺杂区;
(4)沉积氧化层;
(5)生长锗硅外延层;
(6)刻蚀,隔离墙生成;
(7)将P阱和锗硅外延层通过接触孔引出连接金属线。
实施步骤(1)时,注入杂质为硼,能量为50Kev~500Kev,剂量为5e11cm-2~5e13cm-2
实施步骤(3)时,注入杂质为硼或者氟化硼,能量为5Kev~50Kev,剂量为5e14cm-2~1e17cm-2
实施步骤(5)时,注入杂质为硼或者氟化硼,能量条件为5Kev~100Kev、剂量为1e14cm-2~1e17cm-2
本发明的PIS电容器及其制造方法打破SiGeHBT工艺中没有MOS相关结构的局限,使SiGeHBT工艺增加一种器件选择。
附图说明
下面结合附图与具体实施方式对本发明作进一步详细的说明:
图1是本发明PIS电容器的示意图。
图2是本发明PIS电容器制作方法的流程图。
图3是本发明制作方法的示意图一,显示步骤(1)~(3)的内容。
图4是本发明制作方法的示意图二,显示步骤(4)的内容。
图5是本发明制作方法的示意图三,显示步骤(5)的内容。
图6是本发明制作方法的示意图四,显示步骤(6)的内容。
附图标记说明
1是硅衬底
2是浅沟槽隔离
3是P阱
4是P型重掺杂区
5是氧化层
6是锗硅外延层
7是隔离侧墙
8是接触孔
9是金属线
具体实施方式
如图1所示,本发明的PIS电容器,包括:
硅衬底1、浅沟槽隔离2、P阱3、P型重掺杂区4、氧化层5、锗硅外延层6、隔离侧墙7、接触孔8和金属线8,所述硅衬底1上具有浅沟槽隔离2和P阱3,所述P阱3上具有P型重掺杂区4,所述浅沟槽隔离2与P阱3、P型重掺杂区4相邻,所述P型重掺杂区4上具有氧化层5,所述氧化层5上具有锗硅外延层6,所述隔离侧墙7与氧化层5、锗硅外延层6相邻,所述P阱3和锗硅外延层6通过接触孔8引出连接金属线9作为电容器的两端。
如图2所示,本发明PIS电容器的制造方法的一实施例,包括:
(1)如图3所示,在硅衬底1上注入形成P阱3;
(2)制作浅沟槽隔离2;
(3)P型重掺杂注入形成P型重掺杂区4;
(4)如图4所示,沉积氧化层5;
(5)如图5所示,生长锗硅外延层6;
(6)如图6所示,刻蚀,隔离墙生成7;
(7)将P阱3和锗硅外延层6通过接触孔7引出连接金属线8,形成如图1所示PIS电容器。
以上通过具体实施方式和实施例对本发明进行了详细的说明,但这些并非构成对本发明的限制。在不脱离本发明原理的情况下,本领域的技术人员还可做出许多变形和改进,这些也应视为本发明的保护范围。

Claims (9)

1.一种SiGeHBT工艺中的PIS电容器,其特征是,包括:硅衬底、浅沟槽隔离、P阱、P型重掺杂区、氧化层、锗硅外延层、隔离侧墙、接触孔和金属线,所述硅衬底上具有浅沟槽隔离和P阱,所述P阱上具有P型重掺杂区,所述浅沟槽隔离与P阱、P型重掺杂区相邻,所述P型重掺杂区上具有氧化层,所述氧化层上具有锗硅外延层,所述隔离侧墙与氧化层、锗硅外延层相邻,所述P阱和锗硅外延层通过接触孔引出连接金属线作为电容器的两端。
2.如权利要求1所述的PIS电容器,其特征是:所述P阱中具有硼。
3.如权利要求1所述的PIS电容器,其特征是:所述P型重掺杂区中具有硼或氟化硼。
4.如权利要求1所述的PIS电容器,其特征是:所述锗硅外延层中具有硼或氟化硼。
5.如权利要求1所述的PIS电容器,其特征是:所述氧化层厚度为5纳米~30纳米。
6.一种SiGeHBT工艺中的PIS电容器的制作方法,其特征是,包括:
(1)在硅衬底上注入形成P阱;
(2)制作浅沟槽隔离;
(3)P型重掺杂注入形成P型重掺杂区;
(4)沉积氧化层;
(5)生长锗硅外延层;
(6)刻蚀,隔离墙生成;
(7)将P阱和锗硅外延层通过接触孔引出连接金属线。
7.如权利要求6所述的制作方法,其特征是:实施步骤(1)时,注入杂质为硼,能量为50Kev~500Kev,剂量为5e11cm-2~5e13cm-2
8.如权利要求6所述的制作方法,其特征是:实施步骤(3)时,注入杂质为硼或者氟化硼,能量为5Kev~50Kev,剂量为5e14cm-2~1e17cm-2
9.如权利要求6所述的制作方法,其特征是:实施步骤(5)时,注入杂质为硼或者氟化硼,能量条件为5Kev~100Kev、剂量为1e14cm-2~1e17cm-2
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US10680120B2 (en) * 2018-04-05 2020-06-09 Vanguard International Semiconductor Corporation Semiconductor device and method for manufacturing the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW473902B (en) * 1999-07-28 2002-01-21 Symetrix Corp Thin film capacitors on silicon germanium substrate and process for making the same
CN1427463A (zh) * 2001-12-20 2003-07-02 国际商业机器公司 用sige bicmos集成方案制造多晶-多晶电容器的方法
US7843034B2 (en) * 2004-03-15 2010-11-30 Fujitsu Semiconductor Limited Capacitor having upper electrode not formed over device isolation region

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6133597A (en) * 1997-07-25 2000-10-17 Mosel Vitelic Corporation Biasing an integrated circuit well with a transistor electrode
JP2001102580A (ja) * 1999-09-30 2001-04-13 Nec Corp 半導体装置及びその製造方法
US6511873B2 (en) * 2001-06-15 2003-01-28 International Business Machines Corporation High-dielectric constant insulators for FEOL capacitors
US7132322B1 (en) * 2005-05-11 2006-11-07 International Business Machines Corporation Method for forming a SiGe or SiGeC gate selectively in a complementary MIS/MOS FET device
US7573086B2 (en) * 2005-08-26 2009-08-11 Texas Instruments Incorporated TaN integrated circuit (IC) capacitor
KR100801076B1 (ko) * 2006-02-28 2008-02-11 삼성전자주식회사 반도체 소자 및 그 제조 방법
JP4467542B2 (ja) * 2006-06-15 2010-05-26 日本テキサス・インスツルメンツ株式会社 固体撮像装置
KR100934791B1 (ko) * 2007-10-15 2009-12-31 주식회사 동부하이텍 전류특성 측정용 반도체 소자 및 반도체 소자의 전류특성측정 방법
US8847359B2 (en) * 2008-08-06 2014-09-30 Texas Instruments Incorporated High voltage bipolar transistor and method of fabrication
US8487398B2 (en) * 2010-07-14 2013-07-16 Freescale Semiconductor, Inc. Capacitor device using an isolated well and method therefor
CN102412281B (zh) * 2010-09-26 2013-07-24 上海华虹Nec电子有限公司 锗硅异质结双极晶体管

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW473902B (en) * 1999-07-28 2002-01-21 Symetrix Corp Thin film capacitors on silicon germanium substrate and process for making the same
CN1427463A (zh) * 2001-12-20 2003-07-02 国际商业机器公司 用sige bicmos集成方案制造多晶-多晶电容器的方法
US7843034B2 (en) * 2004-03-15 2010-11-30 Fujitsu Semiconductor Limited Capacitor having upper electrode not formed over device isolation region

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