A switch includes: a first electrode sheet including a first electrode; a second electrode sheet including a second electrode that faces the first electrode sheet; and an adhesive that includes a first opening through which the first electrode faces the second electrode sheet and that attaches the first electrode sheet to the second electrode sheet. The first electrode sheet includes: a first substrate on which the first electrode is disposed; a first spacer between the first substrate and the second electrode sheet that includes a second opening at a position corresponding to the first electrode; and a first base between the first substrate and the first spacer that overlaps at least a portion of an edge of the first opening of the adhesive. The first spacer is attached to the second electrode sheet by the adhesive.

A switch includes: a first electrode sheet including a first electrode; a second electrode sheet including a second electrode that faces the first electrode sheet; and an adhesive that includes a first opening through which the first electrode faces the second electrode sheet and that attaches the first electrode sheet to the second electrode sheet. The first electrode sheet includes: a first substrate on which the first electrode is disposed; a first spacer between the first substrate and the second electrode sheet that includes a second opening at a position corresponding to the first electrode; and a first base between the first substrate and the first spacer that overlaps at least a portion of an edge of the first opening of the adhesive. The first spacer is attached to the second electrode sheet by the adhesive.

One aspect provides a key switch device including: a base plate; a sheet laminated on the base plate; a key top disposed above the sheet; and an elastic dome that is disposed between the sheet and the key top and is configured to press the sheet in response to the key top being pressed down. Other aspects are described and claimed.