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IPC Main Group
H01G 7/00

Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC ELEMENTS
Subclass:
CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE

Related Keywords

semiconductor devices operating as variable CAPACITORS

3 direct subcodes

Child Classifications

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  • H01G 7/02 Electrets, i.e. having a permanently-polarised dielectric
  • H01G 7/04 having a dielectric selected for the variation of its permitivity with applied temperature
  • H01G 7/06 having a dielectric selected for the variation of its permitivity with applied voltage, i.e. ferroelectric capacitors