Thermal print head, thermal printer, and method of manufacturing heat sink
AssigneeRohm Co., Ltd.
InventorsKaoru Muraki, Kuniaki Nakamura
Life of this patent
Estimating the term…
Abstract
A thermal print head includes: a head substrate on which a plurality of heating resistance units are formed; a heat sink thermally connected to the head substrate, a recess being formed in a back surface of the heat sink which faces a surface to which the head substrate is connected; a metal member arranged in the recess; and an adhesive arranged between a bottom surface of the recess and the metal member. The recess viewed from a direction perpendicular to the back surface includes: an area where the metal member is arranged, and a groove area where the metal member is not arranged. A portion of the adhesive is arranged in the groove area.
Claims15
A thermal print head comprising:
- a head substrate on which a plurality of heating resistance units are formed;
- a heat sink thermally connected to the head substrate, a recess being formed in a back surface of the heat sink which faces a surface to which the head substrate is connected;
- a metal member arranged in the recess;
- and
- an adhesive arranged between a bottom surface of the recess and the metal member, wherein
- the recess viewed from a direction perpendicular to the back surface includes:
- an area where the metal member is arranged;
- and
- a groove area where the metal member is not arranged,
- a portion of the adhesive is arranged in the groove area, and
- the groove area is surrounded by the metal member.
Dependencies are inferred from the claim text.