DIFF Subgroup
H10F 30/21 the devices being sensitive to infrared, visible or ultraviolet radiation
Introduced: January 2025
Full Title
Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors > the devices having potential barriers, e.g. phototransistors > the devices being sensitive to infrared, visible or ultraviolet radiation
Of 6 combined children, 4 exist in both systems.
2 codes are CPC-only extensions.
IPC defines codes here since 2025.
Child Classifications
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- H10F 30/22 the devices having only one potential barrier, e.g. photodiodes since 2025 +1 CPC IPC+CPC Available in IPC and CPC
- H10F 30/24 the devices having only two potential barriers, e.g. bipolar phototransistors since 2025 +1 CPC IPC+CPC Available in IPC and CPC
- H10F 30/26 the devices having three or more potential barriers, e.g. photothyristors since 2025 +1 CPC IPC+CPC Available in IPC and CPC
- H10F 30/28 the devices being characterised by field-effect operation, e.g. junction field-effect phototransistors since 2025 +4 CPC IPC+CPC Available in IPC and CPC