QUARTZ RESONATORS QUARTZ CONTROLLED OSCILLATORS

Brand	Owner	Address	Description
KDS	Daishinku Corporation	1389 Shinzaike, Aza-kono, Hiraoka-cho Kakogawa-shi, Hyogo Japan	quartz resonators and quartz-controlled oscillators;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A method for manufacturing quartz oscillators is provided which permits quartz oscillators having an oscillation frequency, as designed, to be obtained with small variation of individual oscillation frequency and with high reliability. The method for manufacturing quartz oscillators according to the present invention comprises the steps of forming a first resist layer (300) on one surface of a quartz substrate (100), exposing said first resist layer to light of a first amount of exposure to form a patterned first masking layer (210), forming a second resist layer (400) on the other surface of said quartz substrate, exposing said second resist layer to light of a second amount of exposure via said quartz substrate to form a patterned second masking layer (410) by using said first masking layer, and etching said quartz substrate to form quartz pieces (150) by using said patterned first masking layer and said patterned second masking layer.