JPH0266916A - Manufacture of laminated ceramic capacitor - Google Patents
Manufacture of laminated ceramic capacitorInfo
- Publication number
- JPH0266916A JPH0266916A JP21930488A JP21930488A JPH0266916A JP H0266916 A JPH0266916 A JP H0266916A JP 21930488 A JP21930488 A JP 21930488A JP 21930488 A JP21930488 A JP 21930488A JP H0266916 A JPH0266916 A JP H0266916A
- Authority
- JP
- Japan
- Prior art keywords
- printed
- electrode
- paste
- glass paste
- same thickness
- 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
- 239000003985 ceramic capacitor Substances 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000007639 printing Methods 0.000 claims abstract description 10
- 238000010030 laminating Methods 0.000 claims abstract description 4
- 239000000919 ceramic Substances 0.000 abstract description 8
- 238000007650 screen-printing Methods 0.000 abstract description 5
- 239000002003 electrode paste Substances 0.000 abstract description 3
- 239000005388 borosilicate glass Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000010304 firing Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Ceramic Capacitors (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は積層型セラミックコンデンサの製造方法に関し
、特に高信頼度の積層型セラミックコンデンサの製造方
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a multilayer ceramic capacitor, and particularly to a method for manufacturing a highly reliable multilayer ceramic capacitor.
従来、この種の積層型セラミックコンデンサは、例えば
、次のように製造される。周知の方法により形成された
グリーンシート上に、ペースト状の内部電極を、スクリ
ーン印刷法等により塗布する。電気的短絡をさけるため
に内部電極塗布形状は、例えば第３図の縦断面図に示す
ように、片端部に余白を残す必要がある。この内部電極
が塗布されたグリーンシートを適当な枚数交互に積層し
、熱圧着切断後、電気炉中で焼成する。焼成後、両端に
外部電極を塗布形成する。Conventionally, this type of multilayer ceramic capacitor is manufactured, for example, as follows. A paste-like internal electrode is applied by screen printing or the like onto a green sheet formed by a well-known method. In order to avoid electrical short circuits, it is necessary to leave a blank space at one end of the internal electrode coating shape, as shown in the vertical cross-sectional view of FIG. 3, for example. A suitable number of green sheets coated with internal electrodes are alternately stacked, thermocompressed and cut, and fired in an electric furnace. After firing, external electrodes are coated on both ends.
上述した従来の積層型セラミックコンデンサの製造方法
では、積層されるグリーンシートは内部電極を印刷する
ことにより凸形状となり、積層。In the conventional method for manufacturing multilayer ceramic capacitors described above, the green sheets to be stacked have a convex shape by printing internal electrodes, and then the green sheets are stacked.
熱圧着時に十分な物質移動が起こらず、焼成後のセラミ
ック密度に不均一が生じ、信頼性を低下させるという欠
点があった。There was a drawback that sufficient mass transfer did not occur during thermocompression bonding, resulting in non-uniform ceramic density after firing, reducing reliability.
この発明の目的は上記問題を解決し、焼成後のセラミッ
クの密度を均一にでき高信頼度の積層セラミックコンデ
ンサの製造方法を提供することにある。An object of the present invention is to solve the above-mentioned problems and provide a method for manufacturing a highly reliable multilayer ceramic capacitor in which the density of the ceramic after firing can be made uniform.
本発明の積層型セラミックコンデンサの製造方法は、グ
リーンシート上に内部電極を印刷する工程と、前記内部
電極の印刷されたグリーンシート表面の内部電極の印刷
されていない部分のすくなくとも一部分に内部電極と同
一厚のガラスペーストを印刷する工程と、前記内部電極
およびガラスペーストの印刷されたグリーンシートを所
要枚数積層・熱圧着する工程とを含むことを特徴として
構成される。The method for manufacturing a multilayer ceramic capacitor according to the present invention includes the steps of printing internal electrodes on a green sheet, and printing internal electrodes on at least a portion of the surface of the green sheet on which the internal electrodes are printed, where the internal electrodes are not printed. The method is characterized by comprising a step of printing glass paste of the same thickness, and a step of laminating and thermocompression bonding a required number of green sheets on which the internal electrodes and glass paste are printed.
次に、本発明について図面を参照して説明する。第１図
は本発明の一実施例を説明するための積層型セラミック
コンデンサの縦断面図であり、第２図は本発明の一実施
例を説明するためのグリーンシート上に形成された内部
電極ペーストおよびガラスペーストにより形成されたパ
ターンを示す上面図である。Next, the present invention will be explained with reference to the drawings. FIG. 1 is a longitudinal cross-sectional view of a multilayer ceramic capacitor for explaining an embodiment of the present invention, and FIG. 2 is a longitudinal cross-sectional view of an internal electrode formed on a green sheet for explaining an embodiment of the present invention. FIG. 3 is a top view showing a pattern formed by paste and glass paste.
まず、周知の方法で形成されたグリーンシート上に、例
えば、Ｐｄペースト等の内部電極ペーストを、スクリー
ン印刷法で、例えば２〜５１１ｍ印刷する。次に、例え
ば、ホウケイ酸のガラスペーストを、内部電極が印刷さ
れていない部分にスクリーン印刷法で内部電極と同一厚
で印刷する。First, on a green sheet formed by a well-known method, an internal electrode paste such as Pd paste is printed, for example, 2 to 511 m by a screen printing method. Next, for example, a glass paste of borosilicate is printed to the same thickness as the internal electrodes by screen printing on the areas where the internal electrodes are not printed.
（第２図）このグリーンシートを適当な枚数積層し熱圧
着後ｓ ｏ ｏ ’ｃ〜１０００℃程度の温度で電気炉
中で焼成し、セラミック誘電体と、ガラス質絶縁層を同
時焼結させる。次に、通常の方法で、外部電極を形成す
る。(Fig. 2) A suitable number of green sheets are laminated, thermocompressed, and then fired in an electric furnace at a temperature of about 1,000°C to 1,000°C to simultaneously sinter the ceramic dielectric and the glass insulating layer. . Next, external electrodes are formed using a conventional method.
第１表に、本発明と従来例で製造した積層セラミックコ
ンデンサの信頼性試験の結果を示す。信頼性試験として
は、それぞれの試料に８５℃でワーキングボルテージの
４倍の電圧を１０００時間印加したものと、１２５℃で
ワーキングボルテージの２倍の電圧を５００時間印加し
たものの２種の試験をし、その後絶縁抵抗が初期値の１
／１０以下になったものを不良とした。試験数は何れも
１００個とし、表中の数字は不良数を示す。Table 1 shows the results of reliability tests of multilayer ceramic capacitors manufactured according to the present invention and conventional examples. Two types of reliability tests were conducted on each sample: one in which a voltage four times the working voltage was applied at 85°C for 1000 hours, and one in which a voltage twice the working voltage was applied at 125°C for 500 hours. , then the insulation resistance returns to the initial value of 1
Those with a value of /10 or less were considered defective. The number of tests was 100 in each case, and the numbers in the table indicate the number of defects.
第１表
なお、本実施例では内部電極の印刷されていない部分の
全面にガラスペースト印刷したが全面でなくても本発明
の効果が得られることは説明するまでもない。Table 1 Note that in this example, the glass paste was printed on the entire surface of the unprinted portion of the internal electrode, but it goes without saying that the effects of the present invention can be obtained even if the entire surface is not printed.
以上説明したように本発明は、グリーンシート上に内部
電極印刷後、内部電極が印刷されていない部分に、内部
電極と同一厚のガラスペーストを印刷することにより、
グリーンシートを板状にし積層熱圧着時の不十分な物質
移動を防止し均一なセラミック焼結体を有する高信頼度
のｉ′ｉｔ層型セラミックコンデンサを製造することが
できる。As explained above, in the present invention, after printing internal electrodes on a green sheet, by printing glass paste with the same thickness as the internal electrodes on the areas where the internal electrodes are not printed,
It is possible to manufacture a highly reliable i'it layer type ceramic capacitor having a uniform ceramic sintered body by making the green sheet into a plate shape and preventing insufficient material transfer during laminated thermocompression bonding.
層型セラミックコンデンサの縦断面図、第２図は本発明
の一実施例を説明するためのグリーンシート上に形成さ
れた内部電極パターンおよびガラスペーストパターンを
示す上面図、第３図は従来例を説明するための従来の積
層型セラミックコンデンサの縦断面図である。A vertical cross-sectional view of a layered ceramic capacitor, FIG. 2 is a top view showing an internal electrode pattern and a glass paste pattern formed on a green sheet for explaining an embodiment of the present invention, and FIG. 3 is a top view of a conventional example. FIG. 2 is a longitudinal cross-sectional view of a conventional multilayer ceramic capacitor for explanation.
１・・・セラミック、２・・・内部電極、３・・・ガラ
ス質絶縁物、４・・・外部電極、６・・・内部電極ペー
スト、７・・・グリーンシート、８・・・ガラス質ペー
スト。DESCRIPTION OF SYMBOLS 1... Ceramic, 2... Internal electrode, 3... Glassy insulator, 4... External electrode, 6... Internal electrode paste, 7... Green sheet, 8... Glassy paste.
Claims (1)
部電極の印刷されたグリーンシート表面の内部電極の印
刷されていない部分のすくなくとも一部分に内部電極と
同一厚のガラスペーストを印刷する工程と、前記内部電
極およびガラスペーストの印刷されたグリーンシートを
所要枚数積層・熱圧着する工程とを含むことを特徴とす
る積層型セラミックコンデンサの製造方法。a step of printing internal electrodes on the green sheet; a step of printing glass paste with the same thickness as the internal electrodes on at least a portion of the surface of the green sheet where the internal electrodes are printed, and where the internal electrodes are not printed; A method for manufacturing a multilayer ceramic capacitor, comprising the steps of laminating and thermocompression bonding a required number of green sheets on which internal electrodes and glass paste are printed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21930488A JPH0266916A (en) | 1988-08-31 | 1988-08-31 | Manufacture of laminated ceramic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21930488A JPH0266916A (en) | 1988-08-31 | 1988-08-31 | Manufacture of laminated ceramic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0266916A true JPH0266916A (en) | 1990-03-07 |
Family
ID=16733394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21930488A Pending JPH0266916A (en) | 1988-08-31 | 1988-08-31 | Manufacture of laminated ceramic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0266916A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2347383A (en) * | 1999-02-23 | 2000-09-06 | Murata Manufacturing Co | Manufacturing electronic component of laminated ceramics |
| WO2000054341A1 (en) * | 1999-03-11 | 2000-09-14 | Merck Patent Gmbh | Doting pastes for producing p, p+ and n, n+ zones in semiconductors |
| GB2376207A (en) * | 2001-05-25 | 2002-12-11 | Kyocera Corp | Ceramic laminates and laminated electronic parts |
| US7503993B2 (en) | 2001-12-14 | 2009-03-17 | Murata Manufacturing Co., Ltd. | Method for manufacturing multilayer ceramic electronic element |
| US9610629B2 (en) | 2013-07-23 | 2017-04-04 | Nissei Co., Ltd. | Rolling machine and method of rolling gear using the rolling machine |
| JP2018148226A (en) * | 2015-05-29 | 2018-09-20 | 太陽誘電株式会社 | Multilayer ceramic capacitor |
| US11017949B2 (en) | 2015-05-29 | 2021-05-25 | Taiyo Yuden Co., Ltd. | Multi-layer ceramic capacitor and method of producing the same |
| CN113884225A (en) * | 2021-10-09 | 2022-01-04 | 广州九思科技有限公司 | Transient response ceramic capacitance pressure sensor and manufacturing method thereof |
-
1988
- 1988-08-31 JP JP21930488A patent/JPH0266916A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2347383A (en) * | 1999-02-23 | 2000-09-06 | Murata Manufacturing Co | Manufacturing electronic component of laminated ceramics |
| GB2347383B (en) * | 1999-02-23 | 2001-05-09 | Murata Manufacturing Co | Method for manufacturing electronic component of laminated ceramics |
| US6475317B1 (en) | 1999-02-23 | 2002-11-05 | Murata Manufacturing Co., Ltd. | Method for manufacturing electronic component of laminated ceramics |
| WO2000054341A1 (en) * | 1999-03-11 | 2000-09-14 | Merck Patent Gmbh | Doting pastes for producing p, p+ and n, n+ zones in semiconductors |
| US7089659B2 (en) | 2001-05-25 | 2006-08-15 | Kyocera Corporation | Method of producing ceramic laminates |
| GB2376207B (en) * | 2001-05-25 | 2005-03-30 | Kyocera Corp | Method of producing ceramic laminates,laminated electronic parts and method of producing the same |
| GB2376207A (en) * | 2001-05-25 | 2002-12-11 | Kyocera Corp | Ceramic laminates and laminated electronic parts |
| US7503993B2 (en) | 2001-12-14 | 2009-03-17 | Murata Manufacturing Co., Ltd. | Method for manufacturing multilayer ceramic electronic element |
| US7547370B2 (en) | 2001-12-14 | 2009-06-16 | Murata Manufacturing Co., Ltd. | Method for manufacturing multilayer ceramic electronic element |
| US9610629B2 (en) | 2013-07-23 | 2017-04-04 | Nissei Co., Ltd. | Rolling machine and method of rolling gear using the rolling machine |
| JP2018148226A (en) * | 2015-05-29 | 2018-09-20 | 太陽誘電株式会社 | Multilayer ceramic capacitor |
| US11017949B2 (en) | 2015-05-29 | 2021-05-25 | Taiyo Yuden Co., Ltd. | Multi-layer ceramic capacitor and method of producing the same |
| CN113884225A (en) * | 2021-10-09 | 2022-01-04 | 广州九思科技有限公司 | Transient response ceramic capacitance pressure sensor and manufacturing method thereof |
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