JPS6067173A - Thermal head - Google Patents

Thermal head

Info

Publication number
JPS6067173A
JPS6067173A JP58174313A JP17431383A JPS6067173A JP S6067173 A JPS6067173 A JP S6067173A JP 58174313 A JP58174313 A JP 58174313A JP 17431383 A JP17431383 A JP 17431383A JP S6067173 A JPS6067173 A JP S6067173A
Authority
JP
Japan
Prior art keywords
glaze
layer
thermal head
substrate
heating resistor
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.)
Granted
Application number
JP58174313A
Other languages
Japanese (ja)
Other versions
JPH0124076B2 (en
Inventor
Masakazu Kato
雅一 加藤
Takehiro Takojima
武広 蛸島
Yoshimi Kamijo
芳省 上條
Yasuhiko Kasama
泰彦 笠間
Hisahiro Hiraide
平出　弥博
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.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP58174313A priority Critical patent/JPS6067173A/en
Publication of JPS6067173A publication Critical patent/JPS6067173A/en
Publication of JPH0124076B2 publication Critical patent/JPH0124076B2/ja
Granted 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

Abstract

PURPOSE:To provide a thermal head at a relatively low cost and with favorable heat response characteristics and uniform thermal characteristics, by a method wherein a metallic layer is provided on a glaze part, and the metallic layer and a projected glaze part are covered with an insulating layer. CONSTITUTION:In the glaze 2 of a substrate, the glaze part is partially removed by photo-etching so that only the part near a part where a heating resistor 3 is to be provided is projected. Then, the metallic layer 6 is provided by vapor deposition or the like on the glaze part recessed downward by the etching, and the metallic layer 6 and the projected glaze part 2a are covered by a thin insulating layer 7. The heating resistor 3, a conductor 4 and an overcoat layer 5 are sequentially provided on the substrate thus obtained to constitute the thermal head.

Description

【発明の詳細な説明】 不発明は、感熱記録あるいは熱転写記録に用いられるサ
ーマルヘッドに関するものである。DETAILED DESCRIPTION OF THE INVENTION The invention relates to a thermal head used for thermal recording or thermal transfer recording.

記１図は従来のサーマルヘッドの断匍図である。FIG. 1 is a cutaway view of a conventional thermal head.

アｘミナなどの絶に位基板ｌの全面にグレーズ層２が形
成され、その上にドツト状の発熱抵抗体３．４２、体４
及びオーバーコート層５が順次形成される。A glaze layer 2 is formed on the entire surface of a substrate 1 such as an aximumina, and dot-shaped heating resistors 3 and 42 and a body 4 are formed on it.
and overcoat layer 5 are sequentially formed.

グレーズ層２は、発熱抵抗体３で発生した熱を蓄え、感
熱紙の発色に必袋な温度を得る目的で使用される。The glaze layer 2 is used for the purpose of storing the heat generated by the heating resistor 3 and obtaining the necessary temperature for coloring the thermal paper.

ところが、赤、１図のような絶縁性基板１の全面発生し
た熱がグレーズ層２の広い範囲にわたって蓄えられるノ
ζめ、発熱抵抗体３の発熱がｌミ了してＰ緑基板ｌが冷
λるのに時間が７：＋）かる。こｉｌは熱応答性の低下
として現われ、特に高速度で印字する場合には、印字文
字が次第に浪くカシ、ついには白抜けや尾引き等を生じ
印字品質の低下を招く。However, as shown in Fig. 1, the heat generated over the entire surface of the insulating substrate 1 is accumulated over a wide range of the glaze layer 2, and the heat generated by the heat generating resistor 3 ends after a period of time, and the green substrate 1 cools down. It takes 7:+) time to reach λ. This appears as a decrease in thermal responsiveness, and especially when printing at high speeds, the printed characters gradually become wavy, and eventually white spots and trailing occur, leading to a decrease in print quality.

そこで第２−に示すように、発熱抵抗体３の付近だけに
グレーズ層２を設けた、／１７ｒｆｆｔ’ｆ部分り゛レ
ーズ基板が使用され、前述の問題解決がＰＡｉられてい
る０ しかしながら、部分グレーズ基板は全面クレーズ基板に
比べ生産コストが高価になる。またクレーズ層２の幅Ｗ
及び厚みｈを常に一足にすることハｂｙシ＜、これらの
寸法のバラツキがサーマルヘッドの熱特性等に重大な影
響を及ばずことになり、品質の点で問題がある。Therefore, as shown in No. 2-2, a glaze layer 2 is provided only in the vicinity of the heating resistor 3, and a /17rfft'f portion glazed substrate is used, and the above-mentioned problem is solved by PAi. Glazed substrates are more expensive to produce than full-face craze substrates. Also, the width W of craze layer 2
It is necessary to always keep the thickness h and the thickness h constant, so that variations in these dimensions do not have a significant effect on the thermal characteristics of the thermal head, which poses a problem in terms of quality.

本発明は以上のような部分グレーズ基板の１．＋４点を
解消するためになされたもので、比較的安価で熱応答性
が良く、しかも熱特性のバラツ片が小さ以下図面に従っ
て本発明の詳細な説明する。The present invention provides 1. the above partially glazed substrate. This invention was developed to solve the problem of +4, is relatively inexpensive, has good thermal response, and has small variations in thermal characteristics.The present invention will be described in detail below with reference to the drawings.

第３図は、本発明の実施例に係るサーマＡへラドの断面
図である。基板としては通常の全面グレーズ基板が用い
られる。この基板のグレーズ層２において発熱抵抗体３
が形成される付近のみが突出するように、その他のグレ
ーズ部を７ｎ）・エツチング技術を用いて部分的に除去
する。次に、このエツチングによって陥没したグレーズ
部には蒸着等で金Ｆｉ［６を形成い　さらにこの上をグ
レーズ突出部２ａも含めて薄い絶縁層７でおおう。FIG. 3 is a sectional view of a Therma A herad according to an embodiment of the present invention. A normal full-surface glazed substrate is used as the substrate. In the glaze layer 2 of this substrate, the heating resistor 3
The other glaze portions are partially removed using etching technique 7n) so that only the area where the glaze is formed protrudes. Next, gold Fi [6] is formed on the glazed portion depressed by this etching by vapor deposition or the like, and then a thin insulating layer 7 is covered over this, including the glaze protrusion 2a.

このようにして出来た基板上に従来と同様の方法を用い
て発熱抵抗体３、導体４、メーバーコート層５が順次形
成されてサーマルヘッドが構成されるＯ この実施例においては、グレーズ部のエツチング深さを
３０μｍとし、この陥没したグレーズ部にＤＣ＠マグネ
トロン・スパッタリング法で１０μｍの厚みのＣｕ層を
形成して金ＰＡＭ６とした。次にこの上をグレーズ突出
部２ａも含めて約５０００″Ａの厚みのＴ　ａ２０５朕
でおおい、絶縁層７とし、発熱抵抗体３としてＴａ２Ｎ
１ｌｆｉを、ηン体４としてＮ’ｒ　−Ｃｒ／’Ａｕ２
唐膜を、メーバ二コート層５としては５１０２７’Ｔａ
２０６　２層膜を形成してサーマルヘッドを構成した。A heating resistor 3, a conductor 4, and a mauber coat layer 5 are sequentially formed on the substrate thus formed using a method similar to the conventional method to constitute a thermal head. The etching depth was set to 30 μm, and a 10 μm thick Cu layer was formed on the depressed glaze portion by DC@magnetron sputtering to obtain gold PAM6. Next, this is covered with Ta205 with a thickness of about 5000''A including the glaze protrusion 2a to form the insulating layer 7, and the heating resistor 3 is made of Ta2N.
1lfi as ηn body 4 as N'r -Cr/'Au2
The Kara membrane is 51027'Ta as the Meba two-coat layer 5.
A thermal head was constructed by forming a 206 two-layer film.

本発明によるサーマルヘッドは、（ｅＢｊＦ−ｉ　６を
設けたことによシ、発熱抵抗体３の発熱終了後の基板冷
却が速かに行なわれるから、仁わた熱応答性を有するサ
ーマルヘッドが提供できる。しかも、実施例のように全
面りル−ズ基板を加工する方法をとれば、部分グレーズ
基板より安価であシ、Ｔ（；分グレーズ基板で問題とな
っているグレーズＷの４・ｈｌ及び厚みも、］７１）エ
ツチングを用いてグレーズ突出部を形成すわけ１】・産
Ｄｉｓ・のバラツキが小さく、サーマルヘッドの熱特性
も安定する。In the thermal head according to the present invention, (by providing the eBjF-i 6, the substrate is quickly cooled down after the heating resistor 3 finishes generating heat, so that a thermal head with excellent thermal responsiveness can be provided. In addition, if a method of processing a completely loose substrate as in the example is used, it will be cheaper than a partially glazed substrate, and the 4.hl of glaze W, which is a problem with T (; 71) Why the glaze protrusion is formed using etching 1) The variation in the thickness is small, and the thermal characteristics of the thermal head are also stable.

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

駆１図は全面グレーズ基板を用いた従来のターマルヘッ
ドの断面図、＾ユ２図は部分グレーズ層゛４．ｙを用い
た従来のダーマルヘッドの断面図１，７．３　ｊｉｔ’
ｊは本発明の実ｆｆ＝ｆｌＪ、によシ４トｉ成されたサ
ーマル−・ラドのｌｌ、Ｉｉ面図である。 ■・・・・・・絶縁基板、２・・・・・・グレーズ層、
２ａ・・・・・・グレーズ突出部、３・・・・・・発熱
抵抗体、４・・・・・・導体、５・・・・・・メーバー
コート層、６・・・・・・金＾層、７・・・・・・結縁
層。 第１頁の続き ■発明者　平出　弥博　東京都大１ 旧区雪谷大塚町１番７号　アルプス電気株式会社手続補
正帯（自発） 昭和５９年　６月／Ｊ’日 特許庁長官　若　杉　和　夫　殿 １　事件の表示 特願昭５８−１７４３１３号 ２　発明の名称 サーマルヘッド− ３補正をする者 事件との関係　出願人 住　所　東京都大田区雪谷大塚町１番７号名　称　（Ａ
Ｏ９）アルプス電気株式会社代表者　片岡勝大部 ４　代理人 住　所　〒１０５東京都港区西新橋１丁目６番１３号粕
屋ビル ６　補正の内容 第１図を別紙の通り補正します。 ７　添付書類の目録 図面　１通 第１図Figure 1 is a cross-sectional view of a conventional thermal head using a full glaze substrate, and Figure 2 is a partial glaze layer. Cross-sectional view of a conventional dermal head using y 1, 7.3 jit'
j is a 11, 11 plane view of a thermal radar formed by 4 to 4 according to the present invention, ff=flJ, and FIG. ■...Insulating substrate, 2...Glaze layer,
2a...Glaze protrusion, 3...Heating resistor, 4...Conductor, 5...Member coat layer, 6...Gold ^Layer, 7... Connection layer. Continuing from page 1 ■Inventor Yahiro Hiraide 1-7 Yukitani Otsuka-cho, Old Ward, Tokyo University 1 Alps Electric Co., Ltd. Procedural Amendment Band (voluntary) June 1980/J' Japan Patent Office Commissioner Kazu Wakasugi Husband 1 Indication of the case Patent application No. 174313/1983 2 Name of the invention Thermal head - 3 Relationship with the case Applicant address 1-7 Yukitani Otsuka-cho, Ota-ku, Tokyo Name (A
O9) Alps Electric Co., Ltd. Representative Kataoka Kataoka 4 Agent Address 6 Kasuya Building, 1-6-13 Nishi-Shinbashi, Minato-ku, Tokyo 105 Details of the Amendment Figure 1 will be amended as shown in the attached sheet. 7 Attached document catalog drawing 1 copy, Figure 1

Claims (1)

【特許請求の範囲】[Claims] 発熱抵抗体が形成されるべき位置にグレーズ突出８３全
成け、そのクレーズ突出部の近傍に金属ｊ−を形成し、
ｍＩＪ記グレーズ芙出部の上に発熱抵抗体を設けたこと
を特徴とするサーマルヘッド。A glaze protrusion 83 is completely formed at the position where the heating resistor is to be formed, a metal j- is formed near the craze protrusion,
A thermal head characterized in that a heat generating resistor is provided above a glaze protrusion.
JP58174313A 1983-09-22 1983-09-22 Thermal head Granted JPS6067173A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58174313A JPS6067173A (en) 1983-09-22 1983-09-22 Thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58174313A JPS6067173A (en) 1983-09-22 1983-09-22 Thermal head

Publications (2)

Publication Number Publication Date
JPS6067173A true JPS6067173A (en) 1985-04-17
JPH0124076B2 JPH0124076B2 (en) 1989-05-10

Family

ID=15976464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58174313A Granted JPS6067173A (en) 1983-09-22 1983-09-22 Thermal head

Country Status (1)

Country Link
JP (1) JPS6067173A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62153179A (en) * 1985-12-25 1987-07-08 日立化成工業株式会社 Manufacture of glazed ceramic substrate for heat sensitive head
EP1897693A1 (en) * 2005-06-13 2008-03-12 Rohm, Co., Ltd. Thermal print head

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49104647A (en) * 1973-02-05 1974-10-03
JPS5151339A (en) * 1974-10-31 1976-05-06 Tokyo Shibaura Electric Co
JPS55154189A (en) * 1979-05-18 1980-12-01 Mitsubishi Electric Corp Heat-sensitive head

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49104647A (en) * 1973-02-05 1974-10-03
JPS5151339A (en) * 1974-10-31 1976-05-06 Tokyo Shibaura Electric Co
JPS55154189A (en) * 1979-05-18 1980-12-01 Mitsubishi Electric Corp Heat-sensitive head

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62153179A (en) * 1985-12-25 1987-07-08 日立化成工業株式会社 Manufacture of glazed ceramic substrate for heat sensitive head
EP1897693A1 (en) * 2005-06-13 2008-03-12 Rohm, Co., Ltd. Thermal print head
EP1897693A4 (en) * 2005-06-13 2010-03-03 Rohm Co Ltd Thermal print head

Also Published As

Publication number Publication date
JPH0124076B2 (en) 1989-05-10

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