JPS5732979A - Thermal head - Google Patents
Thermal headInfo
- Publication number
- JPS5732979A JPS5732979A JP10851680A JP10851680A JPS5732979A JP S5732979 A JPS5732979 A JP S5732979A JP 10851680 A JP10851680 A JP 10851680A JP 10851680 A JP10851680 A JP 10851680A JP S5732979 A JPS5732979 A JP S5732979A
- Authority
- JP
- Japan
- Prior art keywords
- film
- thermal head
- protective film
- heating element
- heat conductivity
- 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
- 230000001681 protective effect Effects 0.000 abstract 3
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 abstract 2
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910052790 beryllium Inorganic materials 0.000 abstract 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
Landscapes
- Electronic Switches (AREA)
Abstract
PURPOSE: To provide a thermal head that can prevent the size of a printed dot from enlarging and prevent the periphery of a dot from blurring, wherein as a protective film on a heating element is used a material that can provide the film with a larger heat conductivity in a direction of its thickness than that in a direction parallel to the surface thereof.
CONSTITUTION: In a thermal head wherein a protective film 10 is arranged on a heating element 3 on a substrate 1 with a partial glaze layer 2 therebetween, as the protective film 10 is used a material that can provided the film with a larger heat conductivity in a direction vertical to the film surface than that in a direction parallel to the film surface, such as beryllium oxide. Preferably, the beryllium oxide film is deposited such that a very small quantity of metallic beryllium is ionized by electronic bombardment in a high vacuum in an atmosphere of oxygen.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10851680A JPS5732979A (en) | 1980-08-07 | 1980-08-07 | Thermal head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10851680A JPS5732979A (en) | 1980-08-07 | 1980-08-07 | Thermal head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5732979A true JPS5732979A (en) | 1982-02-22 |
Family
ID=14486766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10851680A Pending JPS5732979A (en) | 1980-08-07 | 1980-08-07 | Thermal head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5732979A (en) |
-
1980
- 1980-08-07 JP JP10851680A patent/JPS5732979A/en active Pending
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