JPH02144443U - - Google Patents
Info
- Publication number
- JPH02144443U JPH02144443U JP5289689U JP5289689U JPH02144443U JP H02144443 U JPH02144443 U JP H02144443U JP 5289689 U JP5289689 U JP 5289689U JP 5289689 U JP5289689 U JP 5289689U JP H02144443 U JPH02144443 U JP H02144443U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- electrode
- glaze layer
- thermal head
- heating
- 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
- 239000000758 substrate Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 4
- 229910052802 copper Inorganic materials 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000010410 layer Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
Landscapes
- Electronic Switches (AREA)
Description
第１図は本考案に係るサーマルヘツドの実施例
を示す縦断面図、第２図は従来のサーマルヘツド
の縦断面図である。
１，１１…絶縁性基板、２，１２…グレーズ層
、３，１３…発熱抵抗体、１３Ａ…発熱部、１３
Ｂ…下部抵抗体、１３Ｃ…上部抵抗体、４，１４
…電極、１４Ａ…下部電極、１４Ｂ…上部電極、
５，１５…保護層。
FIG. 1 is a longitudinal sectional view showing an embodiment of a thermal head according to the present invention, and FIG. 2 is a longitudinal sectional view of a conventional thermal head. DESCRIPTION OF SYMBOLS 1, 11... Insulating substrate, 2, 12... Glaze layer, 3, 13... Heat generating resistor, 13A... Heat generating part, 13
B...Lower resistor, 13C...Upper resistor, 4, 14
...electrode, 14A...lower electrode, 14B...upper electrode,
5, 15...Protective layer.
Claims (1)
グレーズ層上に複数の発熱抵抗体を整列状に形成
してなるサーマルヘツドにおいて、前記グレーズ
層上に下部電極を形成し、これらのグレーズ層お
よび下部電極上に、下部抵抗体およびこの下部抵
抗体より電気抵抗率の大きな上部抵抗体を積層し
てなる複数の発熱抵抗体を形成し、各発熱抵抗体
の両側上に上部電極を形成したことを特徴とする
サーマルヘツド。 (2) 前記発熱抵抗体の上部抵抗体と下部抵抗体
の電気抵抗率の比率を１０以上としたことを特徴
とする請求項第１項記載のサーマルヘツド。 (3) 前記電極の上部電極をＡｌ，ＣｕまたはＡ
ｕにより形成するとともに、下部電極を高融点金
属により形成し、これらの上部電極および下部電
極により各発熱抵抗体の両側を挟持したことを特
徴とする請求項第１項または第２項記載のサーマ
ルヘツド。[Claims for Utility Model Registration] (1) In a thermal head in which a glaze layer is formed on an insulating substrate and a plurality of heat generating resistors are formed in an array on this glaze layer, a lower part on the glaze layer is provided. A plurality of heating resistors are formed by laminating an electrode, and a lower resistor and an upper resistor having a higher electrical resistivity than the lower resistor are laminated on the glaze layer and the lower electrode, and each heating resistor A thermal head characterized in that upper electrodes are formed on both sides of the thermal head. (2) The thermal head according to claim 1, wherein the ratio of the electric resistivity of the upper resistor and the lower resistor of the heating resistor is 10 or more. (3) The upper electrode of the electrode is made of Al, Cu or A.
3. The thermal resistor according to claim 1 or 2, characterized in that the lower electrode is formed of a high melting point metal, and both sides of each heating resistor are sandwiched between the upper electrode and the lower electrode. Head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5289689U JPH02144443U (en) | 1989-05-08 | 1989-05-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5289689U JPH02144443U (en) | 1989-05-08 | 1989-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02144443U true JPH02144443U (en) | 1990-12-07 |
Family
ID=31573596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5289689U Pending JPH02144443U (en) | 1989-05-08 | 1989-05-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02144443U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014024301A (en) * | 2012-07-30 | 2014-02-06 | Kyocera Corp | Thermal head and thermal printer |
-
1989
- 1989-05-08 JP JP5289689U patent/JPH02144443U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014024301A (en) * | 2012-07-30 | 2014-02-06 | Kyocera Corp | Thermal head and thermal printer |
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