Invention Grant
- Patent Title: Manufacturing method of thermal print head
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Application No.: US17470953Application Date: 2021-09-09
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Publication No.: US11642894B2Publication Date: 2023-05-09
- Inventor: Goro Nakatani
- Applicant: ROHM CO., LTD.
- Applicant Address: JP Kyoto
- Assignee: ROHM CO., LTD.
- Current Assignee: ROHM CO., LTD.
- Current Assignee Address: JP Kyoto
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP 20158986 2020.09.23
- Main IPC: B41J2/335
- IPC: B41J2/335 ; B41J2/345 ; B23K26/362

Abstract:
The present disclosure provides a method for manufacturing a thermal print head. The method includes: forming an electrode layer on a substrate; and forming a resistor layer including a plurality of heat generating portions connected to the electrode layer. The electrode layer includes a plurality of individual electrodes including a plurality of first striped portions extending in a secondary scan direction and spaced apart in a main scan direction, and a common electrode including a plurality of second striped portions extending in the secondary scan direction. The forming of the resistor layer includes: a coating process of applying a resistor paste in a stripe that overlaps the first striped portions and the second striped portions; a firing process of firing the resistor paste to form a resistor film; and a removal process of removing a removal region in the resistor paste or the resistor film.
Public/Granted literature
- US20220088941A1 MANUFACTURING METHOD OF THERMAL PRINT HEAD Public/Granted day:2022-03-24
Information query
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