Rohm Co., Ltd.

Kazuya Nakakubo

Akira Fujita

Goro Nakatani

Yasuhiro Fuwa

Yasuhiro Yoshikawa

Tadashi Yamamoto

Satoshi Kimoto

Toshihiro Kimura

A thermal printhead includes a substrate, a protrusion formed on an obverse surface of the substrate and extending in a main scanning direction, a heat storage layer formed on a top surface of the protrusion, and a plurality of heat-generating parts arranged along the main scanning direction on the heat storage layer. The substrate and the protrusion are integrally formed from a single-crystal semiconductor.

Thermal printhead and method of manufacturing the same

A thermal printhead includes a substrate, a resistor layer with heat generation portions supported by the substrate and aligned in a primary scanning direction, a wiring layer supported by the substrate to form a conductive path to the heat generation portions, an insulating layer interposed between the substrate and the resistor layer, and a reflection layer located opposite to the heat generation portions with respect to the insulating layer. The reflection layer overlaps with the heat generation portions as viewed in a thickness direction of the heat generation portions and has a greater heat reflectivity than the insulating layer.

Thermal printhead

Growing community of inventors

Kyoto, Japan

Kazuya Nakakubo