Patent ID: 8593723

Claim:
A method of manufacturing a variable wavelength interference filter comprising: forming, in a chip region of a first substrate having a translucency, an electrostatic gap forming groove for forming an electrostatic gap and a wiring forming groove extending from the electrostatic gap forming groove to an outer peripheral edge of the chip region, and forming, in a region other than the chip region of the first substrate, an air communication groove, through which the wiring groove forming groove communicates with the outer peripheral edge of the first substrate; forming a first reflection film and a first electrode in the electrostatic gap forming groove, and forming a first wiring to be connected to the first electrode along the wiring forming groove; forming a second substrate having translucency which includes a second reflection film facing the first reflection film, a second electrode facing the first electrode, and a second wiring that faces the wiring forming groove and is connected to the second electrode; and gluing the first substrate and the second substrate.