JPH0225340B2 - - Google Patents
Info
- Publication number
- JPH0225340B2 JPH0225340B2 JP58105243A JP10524383A JPH0225340B2 JP H0225340 B2 JPH0225340 B2 JP H0225340B2 JP 58105243 A JP58105243 A JP 58105243A JP 10524383 A JP10524383 A JP 10524383A JP H0225340 B2 JPH0225340 B2 JP H0225340B2
- Authority
- JP
- Japan
- Prior art keywords
- glaze
- glass paste
- convex
- width
- substrate
- 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.)
- Expired - Lifetime
Links
- 239000011521 glass Substances 0.000 claims description 26
- 239000000758 substrate Substances 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 230000008961 swelling Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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
Description
【発明の詳細な説明】
本発明は、サーマルヘツド用グレーズ基板の製
造方法に係わり、特に、発熱要素が設置される箇
所が凸形状を有するグレーズであり、他の面が平
面グレーズである（以下、凸型平面グレーズと言
う）サーマルヘツド用グレース基板の製造方法に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a glazed substrate for a thermal head, and in particular, the glaze has a convex shape at a location where a heating element is installed, and the other surface is a flat glaze (hereinafter referred to as The present invention relates to a method of manufacturing a glaze substrate for a thermal head (referred to as a convex planar glaze).
サーマルヘツドにおいては、熱的特性の面か
ら、一般にグレーズドセラミツク基板が用いられ
るが、第１図に断面図を示す如き凸型平面グレー
ズが優れている。第１図において、１はセラミツ
ク基板、２は平面グレーズ、３は凸型グレーズ、
４は発熱要素である。上記凸型平面グレーズが優
れていることを以下に述べると、発熱要素４下部
の凸型グレーズ３は、適当な厚さによつて熱抵抗
性を有し、かつ、グレーズ体積が小さいため熱容
量が小さく従つて蓄放熱特性が良好となる。ま
た、配線部は平面グレーズ２のために、基板１の
ポーラスさが消され、従つて微細パターン加工
や、多層配線絶縁層の形成が行ない易い。 Glazed ceramic substrates are generally used in thermal heads from the standpoint of thermal properties, but a convex planar glaze as shown in cross section in FIG. 1 is superior. In Fig. 1, 1 is a ceramic substrate, 2 is a flat glaze, 3 is a convex glaze,
4 is a heat generating element. The advantages of the above-mentioned convex plane glaze are as follows: The convex glaze 3 at the bottom of the heating element 4 has heat resistance due to its appropriate thickness, and has a small heat capacity due to its small glaze volume. It is small, and therefore has good heat storage and radiation characteristics. Further, since the wiring portion is coated with the planar glaze 2, the porosity of the substrate 1 is eliminated, making it easy to process fine patterns and form a multilayer wiring insulating layer.
以下、従来の凸型平面グレーズの製法について
図面を用いて説明する。 Hereinafter, a conventional method for manufacturing a convex plane glaze will be described with reference to the drawings.
まず、第２図に示されるように、基板１上に第
１のガラスペースト５を印刷する。６は幅W1、
長さL1の開口である。次に、第３図に示される
ように、第２のガラスペースト７を、幅W1、長
さL2で、上記開口６を覆うように印刷する。次
に熱処理焼成を行ない、第４図のような凸型平面
グレーズを得る。しかしながら、同図に示される
ように凸型グレーズの端部に盛りあがり部１０が
形成されてしまう。サーマルヘツドの基板に、そ
り、うねり、突起等の凹凸が有ることは、発熱要
素と記録紙との接触性を損うため好ましくない。
上記凸型グレーズ端部の盛りあがり部１０を含ん
で基板端部を切り落とす場合もあるが、無駄が多
い。 First, as shown in FIG. 2, a first glass paste 5 is printed on a substrate 1. 6 is the width W 1 ,
It is an opening with length L 1 . Next, as shown in FIG. 3, a second glass paste 7 with a width W 1 and a length L 2 is printed so as to cover the opening 6. Next, heat treatment and firing are performed to obtain a convex plane glaze as shown in FIG. However, as shown in the figure, a raised portion 10 is formed at the end of the convex glaze. It is undesirable for the substrate of the thermal head to have irregularities such as warpage, undulations, protrusions, etc., since this impairs the contact between the heating element and the recording paper.
In some cases, the edge of the substrate including the raised portion 10 at the edge of the convex glaze is cut off, but this is wasteful.
本発明は、上記の欠点に鑑みなされたもので、
端部に盛りあがりを生じないような凸型グレーズ
を有する凸型平面グレーズ基板の製造方法を提供
する。 The present invention has been made in view of the above-mentioned drawbacks.
Provided is a method for manufacturing a convex plane glaze substrate having a convex glaze that does not bulge at the edges.
本発明の一実施例の製造方法について図面を用
いて説明する。 A manufacturing method according to an embodiment of the present invention will be described with reference to the drawings.
まず、第５図に示されるように、基板２１上に
第１のガラスペースト２２を印刷する。２３は幅
W3、長さL3の印刷パターンの開口であり、該開
口の端部近傍の幅は、上記幅W3より狭くしてあ
る。 First, as shown in FIG. 5, a first glass paste 22 is printed on a substrate 21. 23 is the width
This is an aperture of a printed pattern having a width W 3 and a length L 3 , and the width near the end of the aperture is narrower than the above-mentioned width W 3 .
次に、第６図に示されるように、第２のガラス
ペースト２４を、幅W4、長さL4で、端部近傍の
幅が上記幅W4より狭いパターンで、前記開口２
３を覆うように印刷する。ここで、W4＞W3、L4
＞L3なる関係を持つている。W4＞W3なる関係、
即ち、第２のガラスペーストの幅方向における、
第１のガラスペースト２２との重なりは、第１図
の熱処理焼成後の断面図における、凸型グレーズ
３と平面グレーズ２との接触部Ａを滑らかにする
ための条件である。 Next, as shown in FIG. 6, a second glass paste 24 is applied to the opening 24 in a pattern having a width W 4 and a length L 4 , with the width near the end being narrower than the width W 4 .
Print to cover 3. Here, W 4 > W 3 , L 4
＞L It has a relationship of 3 . The relationship W 4 > W 3 ,
That is, in the width direction of the second glass paste,
The overlap with the first glass paste 22 is a condition for smoothing the contact area A between the convex glaze 3 and the flat glaze 2 in the cross-sectional view after heat treatment and firing in FIG.
一方、上記第２のガラスペースト２４の印刷パ
ターンにおいて、端部幅が挟くなつている理由
は、本発明の目的である凸型グレーズの端部盛り
上がりを緩和するためであり、以下に詳しく述べ
る。 On the other hand, in the printing pattern of the second glass paste 24, the reason why the edge width is narrowed is to alleviate the edge swelling of the convex glaze, which is the object of the present invention, and will be described in detail below. .
上記第１のガラスペーストと第２のガラスペー
ストは、特性上の選択が必要であり、特に、第１
のガラスペーストと第２のガラスペーストとの接
触によつて、該第２のガラスペーストの熱処理軟
化状態における表面張力が増加するような組み合
わせをとることが望ましい。該組み合わせによる
第１及び第２のガラスペーストを、得られるべき
凸型グレースの周囲において接触させ、第２のガ
ラスペーストの軟化時表面張力を増すことによつ
て好ましい凸形状を得ると共に、凸型グレーズの
端部に表面張力による応力が集中し、軟化ガラス
が端部に寄り集まつて来ることによる、上記端部
での凸型グレーズの幅の拡がり、高さの増加を、
上記第２のガラスペーストの幅を狭くすることに
よつてキヤンセルさせるという理由による。 It is necessary to select the first glass paste and the second glass paste based on their characteristics.
It is desirable to use a combination in which the contact between the glass paste and the second glass paste increases the surface tension of the second glass paste in a heat-treated softened state. The first and second glass pastes of the combination are brought into contact around the convex grace to be obtained, and by increasing the surface tension of the second glass paste when softened, a desirable convex shape is obtained, and the convex shape is Stress due to surface tension concentrates at the edges of the glaze, and the softened glass gathers around the edges, causing the convex glaze to expand in width and increase in height at the edges.
This is because it is canceled by narrowing the width of the second glass paste.
即ち、第６図における、Ｃ−C′断面、Ｂ−B′断
面をそれぞれ示した第７図ａ，ｂが、熱処理焼成
後、共に第７図ｃのような同等な断面形状を有す
るようにするためである。 That is, after heat treatment and firing, Figures 7a and 7b showing the C-C' cross section and B-B' cross section in Figure 6, respectively, have the same cross-sectional shape as shown in Figure 7c. This is to do so.
本発明によれば、得られるべき凸型グレーズの
端部においても、前記L4＞L3の条件によつて第
１のガラスペーストと第２のガラスペーストの印
刷パターンにおける重なりがあるため、第８図に
示すように凸型グレーズ２５と、該凸型グレーズ
２５の長さ方向の延長上の平面グレーズＤとの接
触も滑らかとなり、従つて凸型グレーズの全周面
を、平面グレーズと滑らかに接触させることが、
凸型グレーズの端部盛り上がりを緩和させること
と同時に実現できる。 According to the present invention, even at the end of the convex glaze to be obtained, there is an overlap in the printing patterns of the first glass paste and the second glass paste due to the condition of L 4 >L 3 . As shown in Figure 8, the contact between the convex glaze 25 and the flat glaze D extending in the length direction of the convex glaze 25 is also smooth, so that the entire circumferential surface of the convex glaze is smooth with the flat glaze. to be brought into contact with
This can be achieved at the same time as reducing the swelling of the edges of the convex glaze.
上記凸型グレーズの全周囲が滑らかであること
は、サーマルヘツドの配線パターニング等の面で
非常に有効である。 The fact that the entire periphery of the convex glaze is smooth is very effective in wiring patterning of a thermal head.
第１図は凸型平面グレーズ基板の要部断面図、
第２図、第３図は従来の製造方法を表わす図、第
４図は従来の製造方法によつて得られる凸型平面
グレーズ基板の斜視図、第５図、第６図は本発明
の一実施例における製造方法を表わす図、第７図
ａ，ｂは本発明の一実施例の製造方法における基
板要部断面図、ｃは得られるグレーズ基板の要部
断面図、第８図は本発明の一実施例の製造方法に
よるグレーズ基板の斜視図である。
１，２１……セラミツク基板、２，８，２６…
…平面グレーズ、３，９，２５……凸型グレー
ズ、５，２２……第１のガラスペースト、７，２
４……第２のガラスペースト、２３……スリツト
開口。
Figure 1 is a sectional view of the main parts of a convex planar glaze substrate.
2 and 3 are diagrams showing the conventional manufacturing method, FIG. 4 is a perspective view of a convex plane glazed substrate obtained by the conventional manufacturing method, and FIG. 5 and 6 are diagrams showing the method of the present invention. Figures 7a and 7b are sectional views of the main parts of a substrate in the manufacturing method of one embodiment of the present invention, c is a sectional view of the main parts of the obtained glazed substrate, and Fig. 8 is a diagram showing the manufacturing method in an embodiment of the present invention. FIG. 2 is a perspective view of a glazed substrate produced by a manufacturing method according to an embodiment. 1, 21... Ceramic substrate, 2, 8, 26...
...Flat glaze, 3,9,25...Convex glaze, 5,22...First glass paste, 7,2
4...Second glass paste, 23...Slit opening.
Claims (1)
に、スリツト状開口部をもつパターンで第１のガ
ラスペーストを印刷する工程と、このスリツト状
開口部を覆う帯状のパターンで第２のガラスペー
ストを印刷する工程とを有し、前記第１のガラス
ペーストの開口の幅が、この開口端部近傍におい
て狭く変化していると共に、前記第２のガラスペ
ーストの帯状パターンの幅が、この帯状パターン
端部近傍において狭く変化し、前記第２のガラス
ペーストの帯状パターンの周縁部において、前記
第１と第２のガラスペーストが重なりを有してい
ることを特徴とするサーマルヘツド用グレーズ基
板の製造方法。1. Printing a first glass paste in a pattern with slit-like openings on a highly thermally conductive substrate such as alumina ceramic, and printing a second glass paste in a band-like pattern that covers the slit-like openings. The width of the opening of the first glass paste changes narrowly near the end of the opening, and the width of the strip pattern of the second glass paste changes near the end of the strip pattern. 2. A method for manufacturing a glaze substrate for a thermal head, characterized in that the first and second glass pastes overlap each other at a peripheral edge of the band-like pattern of the second glass paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58105243A JPS59230771A (en) | 1983-06-13 | 1983-06-13 | Manufacture of glazed substrate for thermal head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58105243A JPS59230771A (en) | 1983-06-13 | 1983-06-13 | Manufacture of glazed substrate for thermal head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59230771A JPS59230771A (en) | 1984-12-25 |
| JPH0225340B2 true JPH0225340B2 (en) | 1990-06-01 |
Family
ID=14402207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58105243A Granted JPS59230771A (en) | 1983-06-13 | 1983-06-13 | Manufacture of glazed substrate for thermal head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59230771A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0626908B2 (en) * | 1985-07-17 | 1994-04-13 | ロ−ム株式会社 | Method of manufacturing thermal print head |
| CA2023796A1 (en) * | 1989-08-25 | 1991-02-26 | Yoshiaki Saita | Process for producing thermal printing heads |
| JP5905224B2 (en) * | 2011-09-28 | 2016-04-20 | 東芝ホクト電子株式会社 | Manufacturing method of thermal print head |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5749579A (en) * | 1980-09-08 | 1982-03-23 | Rohm Co Ltd | Thermal printer head |
| JPS5874373A (en) * | 1981-10-29 | 1983-05-04 | Seiko Instr & Electronics Ltd | Thermal head and manufacture thereof |
| JPS5896575A (en) * | 1981-12-03 | 1983-06-08 | Seiko Epson Corp | Thermal head |
-
1983
- 1983-06-13 JP JP58105243A patent/JPS59230771A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5749579A (en) * | 1980-09-08 | 1982-03-23 | Rohm Co Ltd | Thermal printer head |
| JPS5874373A (en) * | 1981-10-29 | 1983-05-04 | Seiko Instr & Electronics Ltd | Thermal head and manufacture thereof |
| JPS5896575A (en) * | 1981-12-03 | 1983-06-08 | Seiko Epson Corp | Thermal head |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59230771A (en) | 1984-12-25 |
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