JPS60109862A - Thermal head - Google Patents

Thermal head

Info

Publication number
JPS60109862A
JPS60109862A JP21726083A JP21726083A JPS60109862A JP S60109862 A JPS60109862 A JP S60109862A JP 21726083 A JP21726083 A JP 21726083A JP 21726083 A JP21726083 A JP 21726083A JP S60109862 A JPS60109862 A JP S60109862A
Authority
JP
Japan
Prior art keywords
thin film
layer
film layer
glass
thermal head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP21726083A
Other languages
Japanese (ja)
Inventor
Yozo Hirata
Hiroshi Ogawa
Original Assignee
Mitani Denshi Kogyo Kk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitani Denshi Kogyo Kk filed Critical Mitani Denshi Kogyo Kk
Priority to JP21726083A priority Critical patent/JPS60109862A/en
Publication of JPS60109862A publication Critical patent/JPS60109862A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L49/00Solid state devices not provided for in groups H01L27/00 - H01L47/00 and H01L51/00 and not provided for in any other subclass; Processes or apparatus peculiar to the manufacture or treatment thereof or of parts thereof
    • H01L49/02Thin-film or thick-film devices

Abstract

PURPOSE:To enhance the clearness of printings as well as lengthen the life of forming a protective film consisting of the first thin film layer, the second high-hard thin film layer, and the third thin film layer on the heating resistor pattern of an insulating base plate. CONSTITUTION:In a thermal head 11, a protective film 19 is of a three-layered structure consisting of glass, high-hard film, and glass. Even when damage occurs in the glass layer constituting the third thin film layer 18 of the surface portion, for example, and the flaw develops into deep portion, the damage can be interrupted by the second thin film layer 17 of a high-hard film, and therefore, the exertion of the effect to the resistor layer 14 can be exactly prevented. The second thin film layer 17 to interrupt the development of flaw determines the life of thermal head 11, and the thickness of the glass layer constituting the first and third thin film layers 16 and 18 can be made sufficiently thinner.
JP21726083A 1983-11-18 1983-11-18 Thermal head Pending JPS60109862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21726083A JPS60109862A (en) 1983-11-18 1983-11-18 Thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21726083A JPS60109862A (en) 1983-11-18 1983-11-18 Thermal head

Publications (1)

Publication Number Publication Date
JPS60109862A true JPS60109862A (en) 1985-06-15

Family

ID=16701353

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21726083A Pending JPS60109862A (en) 1983-11-18 1983-11-18 Thermal head

Country Status (1)

Country Link
JP (1) JPS60109862A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4835550A (en) * 1987-03-06 1989-05-30 Hitachi, Ltd. Thick film type thermal head

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5033418A (en) * 1973-08-01 1975-03-31
JPS57185174A (en) * 1981-05-11 1982-11-15 Nec Corp Thin film thermal head and manufacture thereof
JPS58118275A (en) * 1982-01-06 1983-07-14 Hitachi Ltd Thermal recording head

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5033418A (en) * 1973-08-01 1975-03-31
JPS57185174A (en) * 1981-05-11 1982-11-15 Nec Corp Thin film thermal head and manufacture thereof
JPS58118275A (en) * 1982-01-06 1983-07-14 Hitachi Ltd Thermal recording head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4835550A (en) * 1987-03-06 1989-05-30 Hitachi, Ltd. Thick film type thermal head

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