FETs having rectifying junction gate electrodes (H10D30/40 takes precedence)

Introduced: January 2025

Title

Titles differ between systems:

IPC: FETs having rectifying junction gate electrodes

CPC: FETs having rectifying junction gate electrodes (H10D30/40 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Field-effect transistors [FET] > FETs having rectifying junction gate electrodes

CPC:

Field-effect transistors [FET] (insulated-gate bipolar transistors H10D12/00) > FETs having rectifying junction gate electrodes (H10D30/40 takes precedence)

Of 3 combined children, 2 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 2025.

Child Classifications

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H10D 30/801 +1 CPC CPC only CPC only
H10D 30/83 FETs having PN junction gate electrodes since 2025 +2 CPC IPC+CPC Available in IPC and CPC
H10D 30/87 FETs having Schottky gate electrodes, e.g. metal-semiconductor FETs [MESFET] since 2025 +4 CPC IPC+CPC Available in IPC and CPC