JPS6061270A - Thin film thermal recording head - Google Patents

Thin film thermal recording head

Info

Publication number
JPS6061270A
JPS6061270A JP58169163A JP16916383A JPS6061270A JP S6061270 A JPS6061270 A JP S6061270A JP 58169163 A JP58169163 A JP 58169163A JP 16916383 A JP16916383 A JP 16916383A JP S6061270 A JPS6061270 A JP S6061270A
Authority
JP
Japan
Prior art keywords
film
green sheet
substrate
thin film
printing
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
JP58169163A
Other languages
Japanese (ja)
Inventor
Koji Oda
小田　幸司
Tatsuo Toyama
外山　立郎
Sukemasa Nakajima
中島　甫允
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP58169163A priority Critical patent/JPS6061270A/en
Publication of JPS6061270A publication Critical patent/JPS6061270A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/335—Structure of thermal heads

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To remove pinholes from a protective film and enhance moisture resistance of a thin film thermal head, by a method wherein a printing part of a substrate is projected as compared with the other parts, and an entire surface glaze, a resistor film, a conductor film and a protective film are provided thereon. CONSTITUTION:A green sheet 2 is provided on a green sheet 1 by printing, followed by firing to provide the substrate 3, 4, and a glaze layer 5 is provided on the entire surface thereof. Then, a resistor, a conductor and a protective layer are provided to constitute a thermal head. The printing part may be partially raised by pressing the green sheet, instead of printing. Accordingly, since a smooth substrate free of ruggedness can be obtained by the above method, the protective film can be provided without generating any pinhole, and a thin film thermal head having excellent moisture resistance can be obtained.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は、感熱記録ヘッドに係シ、特に耐湿性に優れた
ヘッドの構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a thermal recording head, and particularly to a head structure with excellent moisture resistance.

〔発明の背景〕[Background of the invention]

従来の薄膜感熱ヘッドは、９６％〜９９５％　のアルミ
ナ基板上に部分グレーズ層金設け、抵抗体、導体、耐酸
化膜、眼摩耗膜を形成して構成される。A conventional thin film thermal head is constructed by forming a partial glaze layer on a 96% to 995% alumina substrate, forming a resistor, a conductor, an oxidation-resistant film, and an eye-wear film.

グレーズ上は平滑であシ、保護膜も均一に形成されるが
、グレーズの々込部分に形成された保護膜は、下地のア
ルミナ基板に凹凸がある為。The surface of the glaze is smooth and the protective film is formed evenly, but the protective film formed on the areas where the glaze is thickened is due to the unevenness of the underlying alumina substrate.

ピンホールが存在し、湿気が進入して、導体膜（通常Ａ
ｔ膜）全腐蝕させるという欠点があった。Pinholes exist, moisture can enter, and the conductor film (usually A
T-film) had the disadvantage of causing complete corrosion.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、上記欠点を克服する為、全面にグレー
ズを形成した平滑が基板を提供することにある。SUMMARY OF THE INVENTION In order to overcome the above-mentioned drawbacks, it is an object of the present invention to provide a smooth substrate with a glaze formed on its entire surface.

〔発明の概要〕[Summary of the invention]

全面グレーズを行なう場合、印字部分全部分グレーズと
するには、２層グレーズを採用しなければならず、その
加工は非常に難し込。そこで、本発明では、あらかじめ
、グリーンシートの段階で部分的凸部を印刷にょジグリ
ーンシート上に形成し、その後焼成して基板を作成し。When glazing the entire surface, a two-layer glaze must be used in order to glaze the entire printed area, which is extremely difficult to process. Therefore, in the present invention, partial convex portions are formed on a printed green sheet in advance at the green sheet stage, and then fired to create a substrate.

その上に全面グレーズを形成することにょシ凹凸のない
、感熱ヘッド用の基板を提供できる。It is possible to provide a substrate for a thermal head without any unevenness by forming a glaze over the entire surface.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の一実施例を図面により説明する。 An embodiment of the present invention will be described below with reference to the drawings.

第１図で、５グリーンシート１上にグリーンシート２金
印刷にて形成する。これを焼成して、焼成後の基板３，
４上にグレーズ層５全全面に形成する。この後、抵抗体
、導体、保護膜を形成して、感熱ヘッドを構成する。In FIG. 1, a green sheet 2 is printed on a 5 green sheet 1 by gold printing. After firing this, the substrate 3 after firing,
A glaze layer 5 is formed on the entire surface of the glaze layer 4. After this, a resistor, a conductor, and a protective film are formed to constitute a thermal head.

印字部全部分的に盛も上げる手法としては、上記印刷の
他に第３図に示す様な、グリーンシートのプレスによる
ものも考えられる。In addition to the above-mentioned printing, a method of partially increasing the printing area may include pressing a green sheet as shown in FIG.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、凹凸の力い平滑な基板が得られる為、
保護膜もピンホールなく形成することができ、耐湿性に
優れた薄膜サーマルヘッドが得られる。According to the present invention, since a smooth substrate with strong unevenness can be obtained,
The protective film can also be formed without pinholes, and a thin film thermal head with excellent moisture resistance can be obtained.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はヘッドの印字部分の断面口であり、焼成前のグ
リーンシートの状態で部分的に印刷により盛り上げられ
た状態を示す側面図、第２図は％ｍキ焼成後の基板にグ
レーズ層をかけた後の状′態を示す側面図、第３図は、
別方法による印字部の盛り上げ方法を示す側面図である
。 １・・・グリーンシート（基体） ２・・・印刷による部分グリーンシート３・・・焼成後
の基板 ４・・・焼成後の部分的な盛シ上げ部分５・・・グレー
ズ層 ６・・・プレスによシ印字部を盛シ上げたグリーンシー
ト ４１図 ＸＪｊ 廼５図 、ｒ）２ −ｌ−＼−ニン′ＧFigure 1 is a cross-sectional view of the printing part of the head, and a side view showing the green sheet partially raised by printing before firing. Figure 2 is a glaze layer on the substrate after firing. Figure 3 is a side view showing the state after applying
FIG. 7 is a side view showing another method for raising the printed portion. 1... Green sheet (substrate) 2... Partial green sheet by printing 3... Substrate after firing 4... Partial raised portion after firing 5... Glaze layer 6... Green sheet with printed parts raised by press 41 Figure XJj Figure 5, r) 2 -l-\-nin'G

Claims (1)

【特許請求の範囲】[Claims] セラミック基板上に、グレーズ層、抵抗体膜、導体膜、
保護膜を具備してなる感熱記録ヘッドにおいて、基板の
印字部分が他の部分に比して凸部をなし、その上に全面
グレーズ、抵抗体膜、導体膜、保護膜全形成したことを
特徴とする薄膜感熱記録ヘッド。Glaze layer, resistor film, conductor film,
A thermal recording head equipped with a protective film is characterized in that the printed part of the substrate is more convex than the other parts, and a glaze, a resistor film, a conductor film, and a protective film are all formed on the entire surface. Thin film thermal recording head.
JP58169163A 1983-09-16 1983-09-16 Thin film thermal recording head Pending JPS6061270A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58169163A JPS6061270A (en) 1983-09-16 1983-09-16 Thin film thermal recording head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58169163A JPS6061270A (en) 1983-09-16 1983-09-16 Thin film thermal recording head

Publications (1)

Publication Number Publication Date
JPS6061270A true JPS6061270A (en) 1985-04-09

Family

ID=15881434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58169163A Pending JPS6061270A (en) 1983-09-16 1983-09-16 Thin film thermal recording head

Country Status (1)

Country Link
JP (1) JPS6061270A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402414A1 (en) * 1988-03-02 1990-12-19 E.I. Du Pont De Nemours And Company Method of manufacturing thermal printer head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402414A1 (en) * 1988-03-02 1990-12-19 E.I. Du Pont De Nemours And Company Method of manufacturing thermal printer head

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