JPS54140547A - Thin film type thermal head - Google Patents
Thin film type thermal headInfo
- 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
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
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)
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 |
-
1978
- 1978-04-24 JP JP4888278A patent/JPS54140547A/en active Pending
Cited By (2)
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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