CN105161535B - 多沟道全包围栅极鳍式半导体器件制备方法 - Google Patents

多沟道全包围栅极鳍式半导体器件制备方法 Download PDF

Info

Publication number
CN105161535B
CN105161535B CN201510435958.8A CN201510435958A CN105161535B CN 105161535 B CN105161535 B CN 105161535B CN 201510435958 A CN201510435958 A CN 201510435958A CN 105161535 B CN105161535 B CN 105161535B
Authority
CN
China
Prior art keywords
fin
around
raceway groove
semiconductor devices
shaped channel
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.)
Active
Application number
CN201510435958.8A
Other languages
English (en)
Other versions
CN105161535A (zh
Inventor
黄秋铭
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.)
Shanghai Huali Microelectronics Corp
Original Assignee
Shanghai Huali Microelectronics Corp
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 Shanghai Huali Microelectronics Corp filed Critical Shanghai Huali Microelectronics Corp
Priority to CN201510435958.8A priority Critical patent/CN105161535B/zh
Publication of CN105161535A publication Critical patent/CN105161535A/zh
Application granted granted Critical
Publication of CN105161535B publication Critical patent/CN105161535B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H01L29/68Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/76Unipolar devices, e.g. field effect transistors
    • H01L29/772Field effect transistors
    • H01L29/78Field effect transistors with field effect produced by an insulated gate
    • H01L29/785Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
    • H01L29/7851Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET with the body tied to the substrate
    • 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
    • H01L29/02Semiconductor bodies ; Multistep manufacturing processes therefor
    • H01L29/06Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
    • H01L29/10Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
    • H01L29/1025Channel region of field-effect devices
    • H01L29/1029Channel region of field-effect devices of field-effect transistors
    • H01L29/1033Channel region of field-effect devices of field-effect transistors with insulated gate, e.g. characterised by the length, the width, the geometric contour or the doping structure
    • H01L29/1037Channel region of field-effect devices of field-effect transistors with insulated gate, e.g. characterised by the length, the width, the geometric contour or the doping structure and non-planar channel
    • 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
    • H01L29/40Electrodes ; Multistep manufacturing processes therefor
    • H01L29/41Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
    • H01L29/423Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
    • H01L29/42312Gate electrodes for field effect devices
    • H01L29/42316Gate electrodes for field effect devices for field-effect transistors
    • H01L29/4232Gate electrodes for field effect devices for field-effect transistors with insulated gate
    • 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
    • H01L29/66227Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
    • H01L29/66409Unipolar field-effect transistors
    • H01L29/66477Unipolar field-effect transistors with an insulated gate, i.e. MISFET
    • H01L29/66787Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a gate at the side of the channel
    • H01L29/66795Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a gate at the side of the channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
    • 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
    • H01L29/68Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/76Unipolar devices, e.g. field effect transistors
    • H01L29/772Field effect transistors
    • H01L29/78Field effect transistors with field effect produced by an insulated gate
    • H01L29/7831Field effect transistors with field effect produced by an insulated gate with multiple gate structure
    • 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
    • H01L29/68Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/76Unipolar devices, e.g. field effect transistors
    • H01L29/772Field effect transistors
    • H01L29/78Field effect transistors with field effect produced by an insulated gate
    • H01L29/785Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
    • H01L29/7855Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET with at least two independent gates

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Gate Type Field-Effect Transistor (AREA)

Abstract

一种多沟道全包围栅极鳍式半导体器件制备方法,包括:提供衬底,在衬底上形成有非掺杂的翅片结构硅基体,该翅片结构硅基体包含源极结构、漏极结构以及位于所述源极结构和漏极结构之间的鳍形沟道结构;在翅片结构硅基体上的覆盖掩膜层;布置氧化物层以覆盖鳍形沟道结构两侧的衬底表面;第一次部分地蚀刻氧化物层至露出鳍形沟道结构的上段部分;部分地蚀刻上段部分以在上段部分外两侧分别形成第一内凹和第二内凹;在所述第一内凹和所述第二内凹中分别进行掺杂外延以形成第一外延部分和第二外延部分;第二次部分地蚀刻氧化物层;去除掩膜层;蚀刻暴露出来的鳍形沟道结构,使得第一外延部分和所述第二外延部分形成为悬空于衬底上方的双沟道结构。

Description

多沟道全包围栅极鳍式半导体器件制备方法
技术领域
本发明涉及半导体制造领域,更具体地说,本发明涉及一种多沟道全包围栅极鳍式半导体器件制备方法。
背景技术
随着集成电路的发展,器件尺寸越来越小,集成度越来越高。随着半导体器件特征尺寸由于器件尺寸越来越小而不断减小,传统的平面半导体制造技术已经无法使用,非平面技术的半导体器件应运而生,例如绝缘体上硅,双栅,多栅等新工艺的应用。
目前鳍式场效应管在小尺寸领域被广发使用,而具有全包围栅极(gate-all-around)结构的半导体器件由于在器件性能及能有效抑制短沟道效应(short channeleffect)的特殊性能,正是半导体业界所追求的。由于器件沟道被栅极包围,所以器件漏场的影响也被消除,有效抑制了器件的漏电及穿通问题。由于全包围栅极悬空于底部衬底,因此全包围栅极器件的制造工艺较为复杂。
发明内容
本发明所要解决的技术问题是针对现有技术中存在上述缺陷,提供一种多沟道全包围栅极鳍式半导体器件制备方法,能够形成全包围的金属栅极结构,在鳍式场效应管结构中有效地抑制了短沟道效应、漏场和穿通等问题,提高了器件性能。
为了实现上述技术目的,根据本发明,提供了一种多沟道全包围栅极鳍式半导体器件制备方法,包括:
第一步骤,提供衬底,在所述衬底上形成有非掺杂的翅片结构硅基体,该翅片结构硅基体包含源极结构、漏极结构以及位于所述源极结构和漏极结构之间的鳍形沟道结构;
第二步骤,在所述翅片结构硅基体上的覆盖掩膜层;
第三步骤,布置氧化物层,以覆盖鳍形沟道结构两侧的衬底表面并露出鳍形沟道结构上的覆盖掩膜层;
第四步骤,第一次部分地蚀刻氧化物层至露出鳍形沟道结构的上段部分;
第五步骤,部分地蚀刻所述上段部分以在所述上段部分外两侧分别形成第一内凹和第二内凹;
第六步骤,在所述第一内凹和所述第二内凹中分别进行掺杂外延以形成第一外延部分和第二外延部分;
第七步骤,其中第二次部分地蚀刻氧化物层;
第八步骤,其中去除掩膜层;
第九步骤,其中蚀刻暴露出来的鳍形沟道结构,使得所述第一外延部分和所述第二外延部分形成为悬空于衬底上方的双沟道结构。
优选地,所述多沟道全包围栅极鳍式半导体器件制备方法还包括第十步骤,在第一外延部分和第二外延部分外周分别依次沉积一高介电常数材料层和一金属材料层。
优选地,所述多沟道全包围栅极鳍式半导体器件制备方法还包括第十步骤,在第一外延部分和第二外延部分外周分别依次沉积氧化层和多晶硅。
优选地,所述翅片结构硅基体由单晶硅构成、锗硅或碳硅构成。
优选地,在第十步骤通过原子层沉积高介电常数材料层。
优选地,在第十步骤通过溅射沉积金属材料层。
优选地,第一次部分地蚀刻氧化物层和第二次部分地蚀刻氧化物层采用干法蚀刻、湿法蚀刻或者SiCoNi蚀刻。
优选地,掺杂外延的方式是锗掺杂外延或碳掺杂。
优选地,在第九步骤中,湿法蚀刻暴露出来的鳍形沟道结构。
附图说明
结合附图,并通过参考下面的详细描述,将会更容易地对本发明有更完整的理解并且更容易地理解其伴随的优点和特征,其中:
图1和图2示意性地示出了根据本发明优选实施例的多沟道全包围栅极鳍式半导体器件制备方法的第一步骤。
图3示意性地示出了根据本发明优选实施例的多沟道全包围栅极鳍式半导体器件制备方法的第二步骤。
图4示意性地示出了根据本发明优选实施例的多沟道全包围栅极鳍式半导体器件制备方法的第三步骤。
图5示意性地示出了根据本发明优选实施例的多沟道全包围栅极鳍式半导体器件制备方法的第四步骤。
图6示意性地示出了根据本发明优选实施例的多沟道全包围栅极鳍式半导体器件制备方法的第五步骤。
图7示意性地示出了根据本发明优选实施例的多沟道全包围栅极鳍式半导体器件制备方法的第六步骤。
图8示意性地示出了根据本发明优选实施例的多沟道全包围栅极鳍式半导体器件制备方法的第七步骤。
图9示意性地示出了根据本发明优选实施例的多沟道全包围栅极鳍式半导体器件制备方法的第八步骤。
图10示意性地示出了根据本发明优选实施例的多沟道全包围栅极鳍式半导体器件制备方法的第九步骤。
图11和图12示意性地示出了根据本发明优选实施例的多沟道全包围栅极鳍式半导体器件制备方法的第十步骤。
需要说明的是,附图用于说明本发明,而非限制本发明。注意,表示结构的附图可能并非按比例绘制。并且,附图中,相同或者类似的元件标有相同或者类似的标号。
具体实施方式
为了使本发明的内容更加清楚和易懂,下面结合具体实施例和附图对本发明的内容进行详细描述。
图1至图12示意性地示出了根据本发明优选实施例的多沟道全包围栅极鳍式半导体器件制备方法的各个步骤。
如图1至图12所示,根据本发明优选实施例的多沟道全包围栅极鳍式半导体器件制备方法包括:
如图1的立体图和图2沿图1所示的虚线平面截取的截面图所示,第一步骤,其中提供衬底100,在所述衬底100上形成有非掺杂的翅片结构硅基体,该翅片结构硅基体包含源极结构10、漏极结构20以及位于所述源极结构和漏极结构之间的鳍形沟道结构30;
如图3所示,第二步骤,其中在所述翅片结构硅基体上的覆盖掩膜层40;
如图4所示,第三步骤,其中布置氧化物层50,以覆盖鳍形沟道结构30两侧的衬底100表面并露出鳍形沟道结构30上的覆盖掩膜层40;
如图5所示,第四步骤,其中第一次部分地蚀刻氧化物层50至露出鳍形沟道结构30的上段部分31;
如图6所示,第五步骤,其中部分地蚀刻所述上段部分31以在所述上段部分31外两侧分别形成第一内凹32和第二内凹33;
如图7所示,第六步骤,其中在所述第一内凹32和所述第二内凹33中分别进行掺杂外延以形成第一外延部分33和第二外延部分34;
如图8所示,第七步骤,其中第二次部分地蚀刻氧化物层50;
如图9所示,第八步骤,其中去除掩膜层40;
如图9所示,第九步骤,其中蚀刻暴露出来的鳍形沟道结构30,使得所述第一外延部分33和所述第二外延部分34形成为悬空于衬底上方的双沟道结构;
如图11的截面图和图12的立体图所示,第十步骤,其中在沟道外周依次沉积一高介电常数材料层和一金属材料层。
显然,本发明并不限于双沟道结构,而且适合于形成多于两个的并行沟道结构。
而且,本发明并非一定要采用金属栅极,也可以采用氧化工艺或者原位水汽生成工艺(ISSG)等工艺在沟道外侧形成氧化层,沉积多晶硅作为栅极。
优选地,所述翅片结构硅基体由单晶硅构成,但是也可以是锗硅,碳硅等。
在第十步骤,可以通过原子层沉积高介电常数材料层60。
在第十步骤,可以通过溅射沉积金属材料层70。
优选地,第一次部分地蚀刻氧化物层50和第二次部分地蚀刻氧化物层50可以采用干法蚀刻,也可以采用湿法蚀刻,或者采用SiCoNi蚀刻去除。
优选地,掺杂外延的方式可以是锗掺杂外延也可以是碳掺杂。
优选地,在第九步骤中湿法蚀刻暴露出来的鳍形沟道结构30。
本发明可以利用鳍形沟道结构中掺杂层和非掺杂层的湿法蚀刻速度的差异,蚀刻去除栅极底部结构形成悬空于衬底上方的沟道。由此,本发明提供一种多沟道全包围栅极鳍式半导体器件制备方法,能够形成全包围的金属栅极结构,在鳍式场效应管结构中有效地抑制了短沟道效应、漏场和穿通等问题,提高了器件性能。
此外,需要说明的是,除非特别说明或者指出,否则说明书中的术语“第一”、“第二”、“第三”等描述仅仅用于区分说明书中的各个组件、元素、步骤等,而不是用于表示各个组件、元素、步骤之间的逻辑关系或者顺序关系等。
可以理解的是,虽然本发明已以较佳实施例披露如上,然而上述实施例并非用以限定本发明。对于任何熟悉本领域的技术人员而言,在不脱离本发明技术方案范围情况下,都可利用上述揭示的技术内容对本发明技术方案作出许多可能的变动和修饰,或修改为等同变化的等效实施例。因此,凡是未脱离本发明技术方案的内容,依据本发明的技术实质对以上实施例所做的任何简单修改、等同变化及修饰,均仍属于本发明技术方案保护的范围内。

Claims (9)

1.一种多沟道全包围栅极鳍式半导体器件制备方法,其特征在于包括:
第一步骤,提供衬底,在所述衬底上形成有非掺杂的翅片结构硅基体,该翅片结构硅基体包含源极结构、漏极结构以及位于所述源极结构和漏极结构之间的鳍形沟道结构;
第二步骤,在所述翅片结构硅基体上覆盖掩膜层;
第三步骤,布置氧化物层,以覆盖鳍形沟道结构两侧的衬底表面并露出鳍形沟道结构上的覆盖掩膜层;
第四步骤,第一次部分地蚀刻氧化物层至露出鳍形沟道结构的上段部分;
第五步骤,部分地蚀刻所述上段部分以在所述上段部分外两侧分别形成第一内凹和第二内凹;
第六步骤,在所述第一内凹和所述第二内凹中分别进行掺杂外延以形成第一外延部分和第二外延部分;
第七步骤,其中第二次部分地蚀刻氧化物层;
第八步骤,其中去除掩膜层;
第九步骤,其中蚀刻暴露出来的鳍形沟道结构,使得所述第一外延部分和所述第二外延部分形成为悬空于衬底上方的双沟道结构。
2.根据权利要求1所述的多沟道全包围栅极鳍式半导体器件制备方法,其特征在于还包括第十步骤,在第一外延部分和第二外延部分外周分别依次沉积一高介电常数材料层和一金属材料层。
3.根据权利要求1所述的多沟道全包围栅极鳍式半导体器件制备方法,其特征在于还包括第十步骤,在第一外延部分和第二外延部分外周分别依次沉积氧化层和多晶硅。
4.根据权利要求1或2所述的多沟道全包围栅极鳍式半导体器件制备方法,其特征在于,所述翅片结构硅基体由单晶硅构成、锗硅或碳硅构成。
5.根据权利要求2所述的多沟道全包围栅极鳍式半导体器件制备方法,其特征在于,在第十步骤通过原子层沉积高介电常数材料层。
6.根据权利要求2所述的多沟道全包围栅极鳍式半导体器件制备方法,其特征在于,在第十步骤通过溅射沉积金属材料层。
7.根据权利要求1或2所述的多沟道全包围栅极鳍式半导体器件制备方法,其特征在于,第一次部分地蚀刻氧化物层和第二次部分地蚀刻氧化物层采用干法蚀刻、湿法蚀刻或者SiCoNi蚀刻。
8.根据权利要求1或2所述的多沟道全包围栅极鳍式半导体器件制备方法,其特征在于,掺杂外延的方式是锗掺杂外延或碳掺杂外延。
9.根据权利要求1或2所述的多沟道全包围栅极鳍式半导体器件制备方法,其特征在于,在第九步骤中,湿法蚀刻暴露出来的鳍形沟道结构。
CN201510435958.8A 2015-07-22 2015-07-22 多沟道全包围栅极鳍式半导体器件制备方法 Active CN105161535B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510435958.8A CN105161535B (zh) 2015-07-22 2015-07-22 多沟道全包围栅极鳍式半导体器件制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510435958.8A CN105161535B (zh) 2015-07-22 2015-07-22 多沟道全包围栅极鳍式半导体器件制备方法

Publications (2)

Publication Number Publication Date
CN105161535A CN105161535A (zh) 2015-12-16
CN105161535B true CN105161535B (zh) 2018-09-18

Family

ID=54802349

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510435958.8A Active CN105161535B (zh) 2015-07-22 2015-07-22 多沟道全包围栅极鳍式半导体器件制备方法

Country Status (1)

Country Link
CN (1) CN105161535B (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105977163B (zh) * 2016-07-22 2019-05-03 上海华力微电子有限公司 全包围栅极鳍式场效应晶体管结构制作方法
CN107785247A (zh) * 2016-08-24 2018-03-09 中芯国际集成电路制造(上海)有限公司 金属栅极及半导体器件的制造方法
CN107068764B (zh) * 2017-05-08 2020-02-18 上海华力微电子有限公司 半导体器件制备方法
CN109817619B (zh) * 2018-12-28 2020-12-25 上海集成电路研发中心有限公司 一种半导体器件结构及其制造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2296180A1 (fr) * 2009-09-10 2011-03-16 Commissariat à l'Énergie Atomique et aux Énergies Alternatives Procédé de stabilisation de nanofils en germanium obtenus par condensation
CN103456609A (zh) * 2012-06-05 2013-12-18 中芯国际集成电路制造(上海)有限公司 一种全包围栅极器件形成纳米线的方法
CN103779182A (zh) * 2012-10-25 2014-05-07 中芯国际集成电路制造(上海)有限公司 纳米线的制造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2296180A1 (fr) * 2009-09-10 2011-03-16 Commissariat à l'Énergie Atomique et aux Énergies Alternatives Procédé de stabilisation de nanofils en germanium obtenus par condensation
CN103456609A (zh) * 2012-06-05 2013-12-18 中芯国际集成电路制造(上海)有限公司 一种全包围栅极器件形成纳米线的方法
CN103779182A (zh) * 2012-10-25 2014-05-07 中芯国际集成电路制造(上海)有限公司 纳米线的制造方法

Also Published As

Publication number Publication date
CN105161535A (zh) 2015-12-16

Similar Documents

Publication Publication Date Title
CN102446972B (zh) 具有带凹口的鳍片结构的晶体管及其制造方法
US9548303B2 (en) FinFET devices with unique fin shape and the fabrication thereof
US9508795B2 (en) Methods of fabricating nanowire structures
CN105161535B (zh) 多沟道全包围栅极鳍式半导体器件制备方法
US8742508B2 (en) Three dimensional FET devices having different device widths
CN106531737A (zh) 半导体器件及其制造方法
CN103515215B (zh) 一种鳍式场效应管制作方法
CN104835844B (zh) 鳍式场效应晶体管半导体装置及其制造方法
CN105355658B (zh) 鳍状场效晶体管元件及其制造方法
CN104425594B (zh) 鳍式场效应晶体管及其形成方法
US20180294345A1 (en) Method of forming gate-all-around structures
CN103258741A (zh) 纳米线场效应晶体管及其形成方法
CN106531797A (zh) 半导体器件及其形成方法
CN103137445B (zh) 形成Finfet掺杂鳍状物的方法
CN106711214A (zh) 栅极全包覆式纳米线场效晶体管装置
CN109216273A (zh) 半导体结构及其制造方法
CN106783615A (zh) 一种全包围栅极鳍形半导体器件的制备方法
CN108807179A (zh) 半导体结构及其形成方法
CN103855021A (zh) 一种FinFET器件的制造方法
CN103681342B (zh) 一种导电沟道制作方法
CN104979216A (zh) 全包围栅极鳍形半导体器件制备方法
CN107068764B (zh) 半导体器件制备方法
CN106356305B (zh) 优化鳍式场效晶体管结构的方法以及鳍式场效晶体管
CN104517839A (zh) 一种鳍形场效晶体管结构及其制作方法
CN102856378B (zh) 包角晶体管及其制造方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant