Method of fabricating crystal unit, crystal unit fabrication mask, and crystal unit package
AssigneeFujitsu Limited
InventorsHajime Kubota, Masayuki Itoh, Masakazu Kishi
Life of this patent
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Abstract
A method of fabricating a crystal unit fills an adhesive from a first opening in a front surface of a mask of each of penetration holes in the mask in a state in which the mask is set on a base, into each penetration hole, and heats, by a heating element, a sidewall region defining a second opening in a back surface of the mask, in order to cure a sidewall part of the adhesive in the sidewall region defining each penetration hole in contact with the adhesive filling each penetration hole. A crystal blank is bonded on the base using the adhesive in order to form the crystal unit, after removing the mask from the base.
Claims8
A crystal unit package comprising:
- a crystal blank;
- a base having a region where the crystal blank is bonded;
- an electrode pad, provided in the region of the base, and coupled to an electrode of the crystal blank;
- an adhesive coated on the region;
- and
- a heating element, provided in the region of the base, and configured to heat at least the region of the base,
- wherein the crystal blank is bonded to the region of the base via the adhesive, and
- wherein the heating element surrounds the electrode pad.
A crystal unit package comprising:
- a crystal blank;
- a base having a region where the crystal blank is bonded;
- an electrode pad, provided in the region of the base, and coupled to an electrode of the crystal blank;
- an adhesive coated on the electrode pad;
- and
- a heating element, provided in the region of the base, and configured to heat at least the region of the base,
- wherein the crystal blank is bonded to the region of the base via the adhesive, and
- wherein the heating element surrounds the electrode pad.
Dependencies are inferred from the claim text.