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1. CN113921387 - Preparation method of semiconductor structure and semiconductor structure

Office
China
Application Number 202010663904.8
Application Date 10.07.2020
Publication Number 113921387
Publication Date 11.01.2022
Publication Kind A
IPC
H01L 21/28
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21Processes or apparatus specially adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
02Manufacture or treatment of semiconductor devices or of parts thereof
04the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer, carrier concentration layer
18the devices having semiconductor bodies comprising elements of group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
28Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20-H01L21/268158
H01L 29/49
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
29Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having at least one potential-jump barrier or surface barrier; Capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof
40Electrodes
43characterised by the materials of which they are formed
49Metal-insulator semiconductor electrodes
CPC
H01L 21/28247
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
02Manufacture or treatment of semiconductor devices or of parts thereof
04the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
18the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
28Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
28008Making conductor-insulator-semiconductor electrodes
28017the insulator being formed after the semiconductor body, the semiconductor being silicon
28247passivation or protection of the electrode, e.g. using re-oxidation
H01L 21/28008
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
02Manufacture or treatment of semiconductor devices or of parts thereof
04the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
18the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
28Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
28008Making conductor-insulator-semiconductor electrodes
H01L 29/4925
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
29Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof; ; Multistep manufacturing processes therefor
40Electrodes ; ; Multistep manufacturing processes therefor
43characterised by the materials of which they are formed
49Metal-insulator-semiconductor electrodes, ; e.g. gates of MOSFET
4916the conductor material next to the insulator being a silicon layer, e.g. polysilicon doped with boron, phosphorus or nitrogen
4925with a multiple layer structure, e.g. several silicon layers with different crystal structure or grain arrangement
H01L 21/28
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
02Manufacture or treatment of semiconductor devices or of parts thereof
04the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
18the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
28Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
H01L 29/49
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
29Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof; ; Multistep manufacturing processes therefor
40Electrodes ; ; Multistep manufacturing processes therefor
43characterised by the materials of which they are formed
49Metal-insulator-semiconductor electrodes, ; e.g. gates of MOSFET
Applicants CHANGXIN MEMORY TECHNOLOGIES, INC.
长鑫存储技术有限公司
Inventors WU GONGYI
吴公一
YU YOUQUAN
于有权
LU YONG
陆勇
Agents 上海盈盛知识产权代理事务所(普通合伙) 31294
上海盈盛知识产权代理事务所(普通合伙) 31294
Title
(EN) Preparation method of semiconductor structure and semiconductor structure
(ZH) 半导体结构的制备方法及半导体结构
Abstract
(EN) The invention provides a preparation method of a semiconductor structure and a semiconductor device. According to the gate structure formed by the preparation method, the side wall is flat and free of deformation, the reliability of a semiconductor device is greatly improved, and then the yield and the performance of the final device are further improved.
(ZH) 本发明提供一种半导体结构的制备方法及半导体器件。采用本发明制备方法形成的栅极结构,其侧壁平整,且没有变形,大大提高了半导体器件的可靠性,进而提高了最终器件的良率和性能。
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