H10W 70/00 Package substrates; Interposers; Redistribution layers [RDL]
Introduced: January 2026
Additional Content IPC
redistribution layer redistribution layers interconnections in the package, such as metal traces or vias, that laterally reroute ("redistribute") the chip's input/output [I/O] layout into a different, desired I/O pad layout for external connections. Examples include: - fan-in RDLs [FI-RDL], i.e. for redistributing I/O signals from a larger chip to a smaller package substrate or interposer; and - fan-out RDLs [FO-RDLs], i.e. for redistributing I/O signals from a smaller chip to a larger package substrate or interposer.
Of 5 combined children, 4 exist in both systems.
1 codes are CPC-only extensions.
2 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2026.
Child Classifications
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- H10W 70/20 Conductive package substrates serving as an interconnection, e.g. metal plates (leadframes H10W70/40) since 2026 +2 CPC IPC+CPC Available in IPC and CPC
- H10W 70/60 Insulating or insulated package substrates; Interposers; Redistribution layers (leadframes H10W70/40) 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