C23C 16/448 characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
Introduced: January 2000
Full Title
Full titles differ between systems:
Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes > characterised by the method of coating > characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes (reactive sputtering or vacuum evaporation C23C14/00) > characterised by the method of coating (C23C16/04 takes precedence) > characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
CPC subdivides this area 6x more granularly than IPC with 5 additional codes.
5 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2000.
Child Classifications
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- C23C 16/452 by activating reactive gas streams before introduction into the reaction chamber, e.g. by or addition of reactive species since 2000 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class C23,2013–2023, worldwide · Source: EPO PATSTAT
- APPLIED MATERIALS US 8,096
- TOKYO ELECTRON JP 3,985
- CHINESE ACADEMY OF SCIENCES 2,842
- LAM RESEARCH CORPORATION US 2,654
- TOKYO ELECTRON 2,540
- NIPPON STEEL CORPORATION JP 2,465
- JFE STEEL JP 2,368
- ASM IP HOLDING NL 2,092
- APPLIED MATERIALS 1,877
- POSCO (POHANG IRON AND STEEL COMPANY) KR 1,782
Top Applicants (CPC)
Class C23,2013–2023, worldwide · Source: EPO PATSTAT
- APPLIED MATERIALS US 10,596
- TOKYO ELECTRON JP 5,229
- LAM RESEARCH CORPORATION US 3,622
- NIPPON STEEL CORPORATION JP 3,171
- JFE STEEL JP 3,128
- ASM IP HOLDING NL 2,722
- ARCELORMITTAL LU 2,481
- TOKYO ELECTRON 2,359
- APPLIED MATERIALS 2,284
- CHINESE ACADEMY OF SCIENCES 2,110