Thermal print head
First Claim
1. A thermal print head comprising:
- a first substrate made of a monocrystalline semiconductor and having a first obverse surface;
a resistor layer supported by the first substrate and having a plurality of heat generators arranged in a main scanning direction; and
a wiring layer supported by the first substrate and constituting an energization path to the plurality of heat generators,wherein the first substrate has a protrusion made of the monocrystalline semiconductor, protruding from the first obverse surface, and extending in the main scanning direction,the protrusion has a top portion having a largest distance from the first obverse surface, and a first inclined portion connected to the top portion in a sub-scanning direction and inclined at a first inclination angle relative to the first obverse surface, andeach of the heat generators extends across a boundary between the top portion and the first inclined portion and is formed on at least a part of the top portion in the sub-scanning direction and at least a part of the first inclined portion in the sub-scanning direction.
1 Assignment
0 Petitions
Accused Products
Abstract
A thermal print head includes: a substrate having an obverse surface; a plurality of heat generators arranged on the substrate in a main scanning direction; and a wiring layer provided on the substrate and constituting an energization path to the heat generators. The substrate has a protrusion protruding from the obverse surface and extending in the main scanning direction. The protrusion has a top portion having the largest distance from the obverse surface, and an inclined portion connected to the top portion in a sub-scanning direction. The inclined portion is inclined relative to the obverse surface at a predetermined angle. Each of the plurality of heat generators extends across a boundary between the top portion and the inclined portion. Each of the heat generators is formed on at least a part of the top portion and at least a part of the inclined portion in the sub-scanning direction.
-
Citations
18 Claims
-
1. A thermal print head comprising:
-
a first substrate made of a monocrystalline semiconductor and having a first obverse surface; a resistor layer supported by the first substrate and having a plurality of heat generators arranged in a main scanning direction; and a wiring layer supported by the first substrate and constituting an energization path to the plurality of heat generators, wherein the first substrate has a protrusion made of the monocrystalline semiconductor, protruding from the first obverse surface, and extending in the main scanning direction, the protrusion has a top portion having a largest distance from the first obverse surface, and a first inclined portion connected to the top portion in a sub-scanning direction and inclined at a first inclination angle relative to the first obverse surface, and each of the heat generators extends across a boundary between the top portion and the first inclined portion and is formed on at least a part of the top portion in the sub-scanning direction and at least a part of the first inclined portion in the sub-scanning direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
Specification