Insulated-gate field-effect transistors [IGFET] (H10D30/40 takes precedence)

Introduced: January 2025

Title

Titles differ between systems:

IPC: Insulated-gate field-effect transistors [IGFET]

CPC: Insulated-gate field-effect transistors [IGFET] (H10D30/40 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Field-effect transistors [FET] > Insulated-gate field-effect transistors [IGFET]

CPC:

Field-effect transistors [FET] (insulated-gate bipolar transistors H10D12/00) > Insulated-gate field-effect transistors [IGFET] (H10D30/40 takes precedence)

CPC subdivides this area 2x more granularly than IPC with 8 additional codes.

8 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2025.

Child Classifications

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H10D 30/601 +3 CPC CPC only CPC only
H10D 30/611 +1 CPC CPC only CPC only
H10D 30/62 Fin field-effect transistors [FinFET] since 2025 +6 CPC IPC+CPC Available in IPC and CPC
H10D 30/63 Vertical IGFETs (H10D30/66 take precedence) since 2025 +1 CPC IPC+CPC Available in IPC and CPC
H10D 30/637 CPC only CPC only
H10D 30/64 Double-diffused metal-oxide semiconductor [DMOS] FETs since 2025 +1 CPC IPC+CPC Available in IPC and CPC
H10D 30/67 Thin-film transistors [TFT] since 2025 +6 CPC IPC+CPC Available in IPC and CPC
H10D 30/68 Floating-gate IGFETs since 2025 +5 CPC IPC+CPC Available in IPC and CPC
H10D 30/69 IGFETs having charge trapping gate insulators, e.g. MNOS transistors since 2025 +3 CPC IPC+CPC Available in IPC and CPC
H10D 30/701 CPC only CPC only
H10D 30/711 CPC only CPC only
H10D 30/721 CPC only CPC only
H10D 30/751 CPC only CPC only
H10D 30/791 +6 CPC CPC only CPC only