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1. 发明专利

JPH06112080A MANUFACTURE OF CAPACITOR 失效
公开(公告)号：JPH06112080A
公开(公告)日：1994-04-22
申请号：JP26160392
申请日：1992-09-30
申请人： MATSUSHITA ELECTRIC IND CO LTD , JAPAN CARLIT CO LTD
发明人： KINUTA YUKIO , TAKEMOTO KOJI , TERANISHI KAZUYO , HASHIZUME KENICHI , YAMAMOTO HIDEO , ISA ISAO
IPC分类号： C08G61/12 , C08G61/10 , C08G73/10 , C09D5/44 , C25D13/04 , H01G4/06 , H01G4/18 , H01G4/33
摘要： PURPOSE:To realize a method of manufacturing a nonpolar capacitor which is small in size, high in capacitance, and excellent in high frequency characteristics so as to cope with such a tendency that equipments are miniaturized and formed lightweight, an electronic circuit is enhanced in density by employing circuits of high integration, and an automatic part inserting process is introduced, and the capacitor concerned is used in the electronic circuits of various electric and electronic equipments. CONSTITUTION:A polyamic acid thin film is formed on the surface of a porous conductor through a pulse electrodeposition method by the use of electrodeposition liquid where lean solvent of polyamic acid is added to polyamic salt- containing solution, and the polyamic, acid thin film is dehydrated by heating for the formation of a polyimide film on the surface of the porous conductor. Furthermore, polypyrrole films formed through chemical oxidation polymerization and other polypyrrole films formed through electrolytic polymerization are successively laminated to form a conductive layer which serves a counter electrode on the surface of the polyimide film, and thus a capacitor of this design can be realized.

2. 发明专利

JPH04223315A CAPACITOR AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH04223315A
公开(公告)日：1992-08-13
申请号：JP40650990
申请日：1990-12-26
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ISHIKAWA ISAMU , KINUTA YUKIO , KUME NOBUYUKI , MINO NORIHISA , OGAWA KAZUFUMI , SOGA SANEMORI
IPC分类号： B05D1/20 , H01G4/08 , H01G13/00
摘要： PURPOSE:To make a small-sized capacitor of a large capacitance and to improve high frequency characteristics by forming a chemical adsorption single molecular film, consisting of a chlorosilane interfacial activating agent through the intermediary of an optional thin film, or a chemical adsorption molecular accumulated film on the surface of a porous conductive substance as a conductive layer. CONSTITUTION:A metal electrode, which is formed by cutting and supersonic welding a sheet of surface-roughened aluminum etching foil, is dipped into pure water, a hydration treatment is conducted, and a film is formed. On the other hand, using a chlorosilane surface activating agent, a film-formed metal electrode 1 is dipped. A dielectric layer of chemical adsorption single mocular film 2, consisting of a chlorosilane interfacial activating agent, is formed on the metal electrode surface 1, and it is used as an element. This element is dipped into a manganese sulfate aqueous solution, and manganese dioxide is formed on the surface of the aforesaid element. Further, a polypyrrole film is formed by conducting constant-current electrolytic polymerization, it is dipped into colloidal carbon, and a conductive film is formed by coating silver paste, and a counter electrode is taken out from a part of the film.

3. 发明专利

JPH04155810A MANUFACTURE OF CAPACITOR 失效
公开(公告)号：JPH04155810A
公开(公告)日：1992-05-28
申请号：JP28120090
申请日：1990-10-18
申请人： MATSUSHITA ELECTRIC IND CO LTD , JAPAN CARLIT CO LTD
发明人： ISHIKAWA ISAMU , KINUTA YUKIO , KUME NOBUYUKI , HASHIZUME KENICHI , YAMAMOTO HIDEO , ISA ISAO
IPC分类号： H01G4/33 , H01G4/06
摘要： PURPOSE:To improve high frequency characteristics of the title capacitor of small type and large capacitance by a method wherein, after an electrodeposition operation has been conducted by stepwise sintering electrodeposition voltage, a polyamic acid thin film is dehydrated by heating. CONSTITUTION:A porous conductive substrate is obtained by jointing an aluminum lead to aluminum-etching foil whose surface area is roughened to about 50 times. Then, 40 parts of methanol, which is a bad solvent of polyamic acid, is added to 60 parts of polyamic acid salt solution. An electrodeposition solution is poured into a stainless steel container, a substrate is anodized by dipping it into the above-mentioned solution, the container is formed into the cathode, and a polyamic acid thin film is formed on the surface of the substrate by applying 10V voltage for three minutes, then 30V voltage for three minutes, and moreover 50V voltage for three minutes. Then, a polyimide thin film is formed by heating at 250 deg.C for two hours, and a capacitor element is formed. A polypyrrole thin film is formed by chemical oxidation polymerization, a polypyrrole thin film is formed by conducting constant- current electrolytic polymerization using the polypyrrole thin film as the anode, and a conductive layer is formed by dipping the above-mentioned polypyrrole thin film into colloidal carbon and by coating silver paste. A counter electrode is taken out from a part of the conductive layer, an outer covering is provided by epoxy resin, and a capacitor is completed.

4. 发明专利

JPH0334506A CAPACITOR 失效
公开(公告)号：JPH0334506A
公开(公告)日：1991-02-14
申请号：JP17019189
申请日：1989-06-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KINUTA YUKIO , KATSUBE ATSUSHI , OMURA TORU , HAGA MIKIO
IPC分类号： H01G4/33 , H01G4/06
摘要： PURPOSE:To make a capacitor small-sized and lightweight and to lower its cost by a method wherein two or more layers of internal electrodes of a specific film thickness, formed by a dry process and one or more layers of dielectrics are overlapped alternately on one side or on both sides of an insulating substrate whose average roughness in the center line is specific in order to sharply relax an influence of the surface roughness of the insulating substrate on a characteristic. CONSTITUTION:A film thickness of a first layer of an internal electrode formed by using a physical vapor growth method such as a sputtering method or the like is set at 1000Angstrom or higher; a substrate whose cost is comparatively low and whose average roughness in the center line is 0.1 to 1.0mum is utilized fully in order to sharply lower costs of a capacitor. That is to say, an internal electrode layer 2, composed of aluminum, having a film thickness of 3000Angstrom is formed, as a first layer of an internal electrode, on an alumina ceramic substrate 1; then, a dielectric layer 3, composed of strontium titanate, having a film thickness of 5000Angstrom is formed by using a sputtering method. In succession, an internal electrode layer, composed of aluminum, having a film thickness of 5000Angstrom is formed as a second layer of the internal electrode.

5. 发明专利

JPH02305424A MANUFACTURE OF LAMINATED THIN FILM CAPACITOR 失效
公开(公告)号：JPH02305424A
公开(公告)日：1990-12-19
申请号：JP12699389
申请日：1989-05-19
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKADA YUSUKE , OMURA TORU , KINUTA YUKIO , HAGA MIKIO
IPC分类号： H01G4/33 , H01G4/06 , H01G4/30 , H01L21/31 , H05K3/14
摘要： PURPOSE:To manufacture a thin film capacitor posing no problem such as step coverage etc., at all by a method wherein the patterns of dielectrics and electrodes are formed using masking process as well as proper gaps are made between a substrate and evaporation marks. CONSTITUTION:In order to laminate dielectrics 3a-3c alternately with electrodes 2a-2c as least by one layer on a substrate 1 whereon a lower electrode 2a is formed, the patterns of the dielectrics 3a-3c and the electrodes 2a-2d are formed using masking process as well as proper gaps are made between the substrate 1 and evaporation masks 4a-4c. Through these procedures, the edge parts of bonded film can be made gentle also avoiding any notches. Accordingly, such problems as the connection of electrodes on edge part as well as the insulation breakdown of the dielectrics can be almost settled.

6. 发明专利

JPS63249314A METALLIZED PLASTIC FILM CAPACITOR 失效
公开(公告)号：JPS63249314A
公开(公告)日：1988-10-17
申请号：JP8324787
申请日：1987-04-03
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KINUTA YUKIO , HAGA MIKIO , KUME NOBUYUKI
IPC分类号： H01G4/18

7. 发明专利

JPH09199371A METALLIZED FILM CAPACITOR 失效
公开(公告)号：JPH09199371A
公开(公告)日：1997-07-31
申请号：JP458196
申请日：1996-01-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKAHASHI NAOKI , KINUTA YUKIO , TERADA TERUHISA
IPC分类号： H01G4/18 , H01G4/015
摘要： PROBLEM TO BE SOLVED: To provide a smaller-sized capacitor with a security function which is hard to increase a capacitance reduction in a high temperature life test, and which has stable excellent safety operations. SOLUTION: A metal vapor-deposited electrode 3 is formed on one face or both faces of a dielectric 2, a plurality of split electrodes 1 are formed in longitudinal and width directions of the electrode part, the split electrodes are partitioned at P margine 4, a margin fuse 5 having a fuse function is provided in a certain pant or a plurality of positions, and when these films are wound or stacked, the margin fuse 5 is overlapped on a P margin 6 of a counter electrode of a layer above or below that. Further, with the arrangement that the P margin part on one side is overlapped on that on the reverse side, or a vertical margin 9 is overlapped on the margin fuse and P margin 4 on the reverse face, it is possible to obtain performance which is hard to increase a capacitance reduction even in a higher temperature life test as compared with a conventional film capacitor with security function, and which has stable excellent safety operations.

8. 发明专利

JPH05152177A MANUFACTURE OF CAPACITOR 失效
公开(公告)号：JPH05152177A
公开(公告)日：1993-06-18
申请号：JP31573891
申请日：1991-11-29
申请人： MATSUSHITA ELECTRIC IND CO LTD , JAPAN CARLIT CO LTD
发明人： TAKEMOTO KOJI , KINUTA YUKIO , TERANISHI KAZUYO , HASHIZUME KENICHI , YAMAMOTO HIDEO , ISA ISAO
IPC分类号： H01G4/14 , H01G4/18 , H01G13/00
摘要： PURPOSE:To provide a method for manufacture of a small-sized, large-capacity, non- polar capacitor having small leakage current and high breakdown strength, excellent in high-frequency characteristic which meets the needs for electronic circuits of high density which can be automatically inserted to cope with the reduction of size and weight of electric and electronic equipment and the introduction of large-scale integrated circuits thereto. CONSTITUTION:A poor solvent of polyamic acid is added to a solution containing polyamicrate to obtain an electrodeposition liquid. Electrodeposition is performed or the surface of a porous conductor using this electrodeposition liquid. After the formation of a polyamic acid thin film through electrodeposition, it is heated and dehydrated to form a polyimide film on the surface of the conductor. Further, a polypyrrole film is formed on the surface of this polyimide film through chemical oxidative polymerization; subsequently, another polypyrrole film is formed thereon through electrolytic polymerization to form a conductor layer whose polarity is opposite to that of the polyimide film. This gives a small-sized, large-capacity, non-polar capacitor excellent in high-frequency characteristic. In addition, an ultrasonic wave is irradiated during the electrodeposition process above mentioned, giving a capacitor of a smaller leakage current and higher breakdown strength.

9. 发明专利

JPH04348510A METHOD OF MANUFACTURING CAPACITOR 失效
公开(公告)号：JPH04348510A
公开(公告)日：1992-12-03
申请号：JP12098591
申请日：1991-05-27
申请人： MATSUSHITA ELECTRIC IND CO LTD , JAPAN CARLIT CO LTD
发明人： TERANISHI KAZUYO , KINUTA YUKIO , ISHIKAWA ISAMU , KUME NOBUYUKI , HASHIZUME KENICHI , YAMAMOTO HIDEO , ISA ISAO
IPC分类号： H01G4/14
摘要： PURPOSE:To provide a method of manufacturing a nonpolar capacitor which can resolve a desire for making electronic components in a small size and high performance at the time when such the desire has increasingly strengthened itself, which is small-sized and has a great amount of capacitance, and which is excellent in a high-frequency characteristic. CONSTITUTION:A lean solvent of a polyamic acid is added to a solution containing polyamic acid salt to electrodeposit it as an electrodeposition on a surface of a porous conductor and a thin film made of the polyamic acid is formed. Thereafter, the thin film made of the polyamic acid is imided by a solution processing, whereby a polyimide membrane is formed on the surface of the porous conductor. Further, a polypyrrole film by means of a chemical oxide polymerization, and a polypyrrole film by means of an electrolytic polymerization are succesively laminated on a surface of the polyimide membrane and formed with a conductor layer becoming an opposite pole, whereby a method of manufacturing a nonpolar capacitor which is small-sized and has a great amount of capacitance, and which is excellent in a high frequency characteristic can be provided.

10. 发明专利

JPH0487317A CAPACITOR 失效
公开(公告)号：JPH0487317A
公开(公告)日：1992-03-19
申请号：JP20218490
申请日：1990-07-30
申请人： MATSUSHITA ELECTRIC IND CO LTD , JAPAN CARLIT CO LTD
发明人： KINUTA YUKIO , ISHIKAWA ISAMU , KUME NOBUYUKI , HASHIZUME KENICHI , YAMAMOTO HIDEO , ISA ISAO
IPC分类号： C08G73/10 , C08G61/10 , C08G61/12 , H01G4/10 , H01G9/00 , H01G9/02 , H01G9/028 , H01G9/04 , H01G9/14
摘要： PURPOSE:To be nonpolar and to enhance a high-frequency characteristic and a low-temperature characteristic by using a composite dielectric which has been formed by filling an insulating high-polymer film to the inside and the surface of micropores in a pretreated oxide film. CONSTITUTION:An acid bath of oxalic acid, sulfuric acid, phosphoric acid, chromic acid or the like and an alkali bath of sodium carbonate or the like are used as pretreatment solutions. An electrodeposition operation is executed to an insulating high-polymer by using an electrodeposition solution formed by adding a bad solvent of polyamic acid to a solution containing a polyamic acid salt; the polyamic acid is heated and dehydrated; a polyimide is produced. A porous-type chemical-formation operation as a pretreatment by which micropores are formed is executed to a valve metal 1 which has been made porous; a pretreated oxide film 2 is produced. In addition, an insulating film 3 is formed at the inside and the surface of the micropores to form a composite dielectric. Then, a conductor layer which is composed of a conductive high- polymer film 4 of pyrrole by a chemical oxidative polymerization operation and of a conductive high-polymer film 5 by an electrolytic polymerization operation is constituted sequentially on the surface of the composite dielectric.

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