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1. US6692976 - Post-etch cleaning treatment

Office
United States of America
Application Number 09650224
Application Date 31.08.2000
Publication Number 6692976
Publication Date 17.02.2004
Grant Number 6692976
Grant Date 17.02.2004
Publication Kind B1
IPC
H01L 21/8239
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
70Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in or on a common substrate or of specific parts thereof; Manufacture of integrated circuit devices or of specific parts thereof
77Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
78with subsequent division of the substrate into plural individual devices
82to produce devices, e.g. integrated circuits, each consisting of a plurality of components
822the substrate being a semiconductor, using silicon technology
8232Field-effect technology
8234MIS technology
8239Memory structures
H01L 21/306
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
30Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20-H01L21/26142
302to change the physical characteristics of their surfaces, or to change their shape, e.g. etching, polishing, cutting
306Chemical or electrical treatment, e.g. electrolytic etching
H01L 21/308
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
30Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20-H01L21/26142
302to change the physical characteristics of their surfaces, or to change their shape, e.g. etching, polishing, cutting
306Chemical or electrical treatment, e.g. electrolytic etching
308using masks
H01L 21/02
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
H01L 21/304
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
30Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20-H01L21/26142
302to change the physical characteristics of their surfaces, or to change their shape, e.g. etching, polishing, cutting
304Mechanical treatment, e.g. grinding, polishing, cutting
H01L 21/311
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
30Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20-H01L21/26142
31to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After-treatment of these layers; Selection of materials for these layers
3105After-treatment
311Etching the insulating layers
CPC
H01L 28/55
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
28Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
40Capacitors
55with a dielectric comprising a perovskite structure material
H01L 21/02052
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
02041Cleaning
02043Cleaning before device manufacture, i.e. Begin-Of-Line process
02052Wet cleaning only
H01L 21/0206
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
02041Cleaning
02057Cleaning during device manufacture
0206during, before or after processing of insulating layers
H01L 21/31111
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
30Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
31to form insulating layers thereon, e.g. for masking or by using photolithographic techniques
3105After-treatment
311Etching the insulating layers ; by chemical or physical means
31105Etching inorganic layers
31111by chemical means
H01L 21/32134
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
30Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
31to form insulating layers thereon, e.g. for masking or by using photolithographic techniques
3205Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
321After treatment
3213Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
32133by chemical means only
32134by liquid etching only
H01L 28/75
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
28Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
40Capacitors
60Electrodes
75comprising two or more layers, e.g. comprising a barrier layer and a metal layer
Applicants Agilent Technologies, Inc.
Texas Instruments, Inc.
Inventors Mirkarimi, Laura Wills
Gilbert, Stephen R.
Xing, Guoqiang
Summerfelt, Scott
Sakoda, Tomoyuki
Moise, Ted
Priority Data 09650224 31.08.2000 US
Title
(EN) Post-etch cleaning treatment
Abstract
(EN)

The present disclosure relates to a post-etch cleaning treatment for a semiconductor device such as a FeRAM. The treatment comprises providing an etchant comprising both a fluorine compound and a chlorine compound, and applying the etchant to the semiconductor device in a wet cleaning process.

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