FIXED FILM

Brand	Owner	Address	Description
GEO-REACTOR	PARKSON CORPORATION	1401 West Cypress Creek Road #100 Contracts Management Fort Lauderdale FL 33309	fixed film, moving bed biological reactor for the biological treatment of wastewater;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A fixed voltage and a movable electrode are placed face to face with each other, and an insulating film is formed on the surface of the fixed electrode. The insulating film is made of a nitride film (SiN) as a main material, with oxide films (SiO2) being formed on the front and rear surfaces of the nitride film. Moreover, a plurality of protrusions are formed on an area facing the movable electrode of the upper face of the insulating film. The charge quantity in the insulating film is mainly determined by a film thickness of the oxide film, and the nitride film is used for maintaining a sufficient film thickness required for the voltage proof characteristic. Thereby, it is possible to suppress variations in operational voltage characteristics such as on-voltage and off-voltage in an electrostatic actuator so as to prevent phenomena in which the electrostatic actuator fails to turn on even when a rated voltage is applied to the electrostatic actuator and in which the electrostatic actuator fails to turn off even when the driving voltage is turned off.