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CPC Main Group
C23C 10/00

Solid state diffusion of only metal elements or silicon into metallic material surfaces

6 direct subcodes

Child Classifications

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  • C23C 10/02 Pretreatment of the material to be coated (C23C10/04 takes precedence)
  • C23C 10/04 Diffusion into selected surface areas, e.g. using masks
  • C23C 10/60 After-treatment

Top Applicants

Top 10 applicants by patent filingsfor class C23, 2013–2023, worldwide · Source: EPO PATSTAT

  1. APPLIED MATERIALS US 10,596
  2. TOKYO ELECTRON JP 5,229
  3. LAM RESEARCH CORPORATION US 3,622
  4. NIPPON STEEL CORPORATION JP 3,171
  5. JFE STEEL JP 3,128
  6. ASM IP HOLDING NL 2,722
  7. ARCELORMITTAL LU 2,481
  8. TOKYO ELECTRON 2,359
  9. APPLIED MATERIALS 2,284
  10. CHINESE ACADEMY OF SCIENCES 2,110