Thermal print head and method of making the same

A technology of a thermal print head and a manufacturing method, which is applied in the printing field, can solve problems such as low thermal conductivity, reduce the heat conduction efficiency of a heating element to a printing medium, and improve durability and reliability, increase heat conduction efficiency, and practicability strong effect
CN113386469BActive Publication Date: 2022-07-01POSTEK ELECTRONICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
POSTEK ELECTRONICS
Publication Date
2022-07-01

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Abstract

The present invention provides a thermal print head and a manufacturing method thereof. The thermal print head includes an insulating substrate (1), an electrode layer (2), and a resistance layer (3); the thermal print head (300) further includes a heat storage layer (12) formed on the top surface of the insulating substrate (1); The top surface of the heat storage layer (12) is provided with a first groove (121) and a second groove (122) which are arranged independently at intervals from each other; the electrode layer (2) includes a first electrode and a second electrode; the first electrode accommodates In the first groove (121), the second electrode is accommodated in the second groove (122); the height of the top surface of the first electrode and the height of the top surface of the second electrode are respectively flush with the height of the top surface of the heat storage layer (12). ; The resistance layer (3) respectively covers the top surface of the heat storage layer (12), the top surface of the first electrode and the top surface of the second electrode. The thermal print head and the manufacturing method thereof in this embodiment are novel in design and strong in practicability.
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Description

technical field

[0001] The invention relates to the technical field of printing, in particular to a thermal printing head and a manufacturing method thereof. Background technique

[0002] The thermal print head includes components such as a heat sink, a ceramic substrate, a PCB printed circuit board, and a driver IC. A glass glaze layer is prepared on the ceramic substrate as a heat storage layer, and the upper part of the heat storage layer is respectively covered with a resistance layer, an electrode layer and a protective layer. As a well-known thermal print head, it is generally classified into a thin film type thermal print head and a thick film type thermal print head.

[0003] figure 1 A schematic diagram of an embodiment of an existing thin-film type thermal print head is shown, figure 2 show figure 1 A cross-sectional view taken along the line A-A of the thin-film thermal printhead shown. The thin film type thermal print head 100 includes an insulating substra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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