DIFF Subgroup
H10P 32/10 Diffusion of dopants within, into or out of semiconductor bodies or layers
Introduced: January 2026
Full Title
Full titles differ between systems:
IPC:
Diffusion of dopants within, into, or out of wafers, substrates or parts of devices > Diffusion of dopants within, into or out of semiconductor bodies or layers
CPC:
Diffusion of dopants within, into or out of wafers, substrates or parts of devices (during formation of materials H10P14/00) > Diffusion of dopants within, into or out of semiconductor bodies or layers
CPC subdivides this area 3x more granularly than IPC with 5 additional codes.
5 codes are CPC-only extensions.
IPC defines codes here since 2026.
Child Classifications
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- H10P 32/12 between a solid phase and a gaseous phase since 2026 +1 CPC IPC+CPC Available in IPC and CPC
- H10P 32/14 within a single semiconductor body or layer in a solid phase; between different semiconductor bodies or layers, both in a solid phase since 2026 +2 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class H10,2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG DISPLAY KR 21,044
- SAMSUNG ELECTRONICS COMPANY KR 14,774
- LG DISPLAY COMPANY KR 9,454
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 8,301
- SEMICONDUCTOR ENERGY LABORATORY COMPANY JP 7,642
- BOE TECHNOLOGY GROUP COMPANY 6,845
- BOE TECHNOLOGY GROUP COMPANY CN 6,806
- SAMSUNG DISPLAY 6,577
- LG CHEM KR 5,461
- SEMICONDUCTOR ENERGY LABORATORY COMPANY 5,115
Top Applicants (CPC)
Class H10,2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG DISPLAY KR 38,446
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 30,922
- SAMSUNG ELECTRONICS COMPANY KR 30,059
- BOE TECHNOLOGY GROUP COMPANY CN 20,304
- LG DISPLAY COMPANY KR 17,772
- BOE TECHNOLOGY GROUP COMPANY 15,621
- SEMICONDUCTOR ENERGY LABORATORY COMPANY JP 13,629
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 11,750
- SAMSUNG DISPLAY 11,316
- SEMICONDUCTOR ENERGY LABORATORY COMPANY 9,697