JPS54140547A - Thin film type thermal head - Google Patents

Thin film type thermal head

Info

Publication number
JPS54140547A
JPS54140547A JP4888278A JP4888278A JPS54140547A JP S54140547 A JPS54140547 A JP S54140547A JP 4888278 A JP4888278 A JP 4888278A JP 4888278 A JP4888278 A JP 4888278A JP S54140547 A JPS54140547 A JP S54140547A
Authority
JP
Japan
Prior art keywords
thin film
layer
electrode
thickness
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
JP4888278A
Other languages
Japanese (ja)
Inventor
Keizaburo Kuramasu
Sumio Maekawa
Masaji Arai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4888278A priority Critical patent/JPS54140547A/en
Publication of JPS54140547A publication Critical patent/JPS54140547A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To easily make the thickness of a thermal head uniform, to enhance the mass-productivity and to accomplish the light speed recording operation by forming a glass layer only on the area necessary for the forming a thin film resistor by the thick film technique.
CONSTITUTION: Only the area of a substrate of Al2O3, which is to be formed with a thin film resistor, is further formed with a glass layer 11 having a thickness 10 to 20 μ in the form of a band. Then, a plurality of thin film resistors 12 are arranged on the substrate 1 and the layer 11 in a manner to intersect the layer 11. A first electrode of Cr is formed to have a thickness of 0.1 to 0.2 μ such that an exothermic portion A is formed on the resistor 12. A second electrode 14 of Au for wiring and bonding purposes is formed on the electrode 13 in a manner to have a thcikness of about 3 μ such that it is retracted from the portion on the layer 11. The wiring conductor is constituted by those electrodes 13 and 14. A wear-resisting protecting layer 15 of SiC is formed to cover the exothermic portion A and the vicinity thereof.
COPYRIGHT: (C)1979,JPO&Japio
JP4888278A 1978-04-24 1978-04-24 Thin film type thermal head Pending JPS54140547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4888278A JPS54140547A (en) 1978-04-24 1978-04-24 Thin film type thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4888278A JPS54140547A (en) 1978-04-24 1978-04-24 Thin film type thermal head

Publications (1)

Publication Number Publication Date
JPS54140547A true JPS54140547A (en) 1979-10-31

Family

ID=12815647

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4888278A Pending JPS54140547A (en) 1978-04-24 1978-04-24 Thin film type thermal head

Country Status (1)

Country Link
JP (1) JPS54140547A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5787977A (en) * 1980-11-25 1982-06-01 Shiojiri Kogyo Kk Thermal head
JPH03239562A (en) * 1990-02-16 1991-10-25 Alps Electric Co Ltd Thermal head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5787977A (en) * 1980-11-25 1982-06-01 Shiojiri Kogyo Kk Thermal head
JPH03239562A (en) * 1990-02-16 1991-10-25 Alps Electric Co Ltd Thermal head

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