WO1995021475A1 - Connecteur a filtre - Google Patents

Connecteur a filtre Download PDF

Info

Publication number
WO1995021475A1
WO1995021475A1 PCT/JP1995/000125 JP9500125W WO9521475A1 WO 1995021475 A1 WO1995021475 A1 WO 1995021475A1 JP 9500125 W JP9500125 W JP 9500125W WO 9521475 A1 WO9521475 A1 WO 9521475A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
filter unit
shield frame
hole
contact element
Prior art date
Application number
PCT/JP1995/000125
Other languages
English (en)
Japanese (ja)
Inventor
Hisayoshi Shimasaki
Original Assignee
Nippon Carbide Kogyo Kabushiki Kaisha
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
Priority claimed from JP6030804A external-priority patent/JPH07220820A/ja
Priority claimed from JP6066504A external-priority patent/JPH07249459A/ja
Application filed by Nippon Carbide Kogyo Kabushiki Kaisha filed Critical Nippon Carbide Kogyo Kabushiki Kaisha
Priority to KR1019950704276A priority Critical patent/KR960702197A/ko
Priority to EP95906548A priority patent/EP0692848A4/fr
Publication of WO1995021475A1 publication Critical patent/WO1995021475A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/719—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters
    • H01R13/7195—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters with planar filters with openings for contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/719—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters
    • H01R13/7193—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters with ferrite filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H01R13/6582—Shield structure with resilient means for engaging mating connector
    • H01R13/6583—Shield structure with resilient means for engaging mating connector with separate conductive resilient members between mating shield members

Definitions

  • the present invention c BACKGROUND relates off I electrical connector with filter
  • the shield frame and the filter unit are electrically connected and mechanically held by solder.
  • the cost required to perform such soldering is relatively high.
  • cracks may occur in the filter unit due to the heat during soldering.
  • the silver electrode may be eroded by the solder.
  • soldering Residue of the used flux has a bad influence on members constituting the electric connector with filter due to aging.
  • the soldered portion is formed in a rigid shape, it may be vulnerable to expansion and contraction due to a temperature cycle. Disclosure of the invention
  • an object of the present invention is to provide an electric connector with a filter that solves the above-mentioned problems.
  • the present invention relates to a shield frame, a filter unit having a hole, a contact element inserted into the hole, and a gap between the shield frame and the filter unit. Comprising an interposed leaf spring;
  • the filter unit has a filter function corresponding to the hole and a ground electrode;
  • the ground electrode and the shield frame are electrically connected by the spring;
  • filter connector a filter-equipped electrical connector in which the filter unit and the shield frame are mechanically held and fixed by the plate panel. This is called the "first invention.”
  • the present invention provides a shield frame, a filter unit having a hole, a contact element penetrating the hole and having a stopper, and a contact element having the stopper. Fixture to be inserted And a panel panel interposed between the shield frame and the filter unit; and a body;
  • the filter unit has a filter function corresponding to the hole and a ground electrode;
  • the earth electrode and the shield frame are electrically connected by the plate panel;
  • the filter unit and the shield frame are mechanically held and fixed by the plate panel;
  • the above object is achieved by providing a filter-equipped electrical connector in which the contact element is pressed against the filter unit by the fixing tool via the stopper. This has been achieved (hereinafter, this is referred to as "second invention").
  • the present invention includes both the first invention and the second invention.
  • the filter-equipped electric connector of the present invention can be preferably used for electronic devices and electronic devices that dislike noise, such as communication devices, electronic devices for automobiles, computer peripheral devices, vending machines, and the like. It can be preferably used for automatic ticketing machines and electronic game machines such as pachinko and games.
  • FIG. 1 is an exploded perspective view showing a preferred embodiment of the electric connector with a filter according to the first invention
  • Fig. 2 is a cross-sectional view along the line JJ 'in Fig. 1;
  • FIG. 3 is a sectional view showing another embodiment of the filter unit
  • FIG. 4 is a perspective view showing a preferred embodiment of the electric connector with a filter according to the second invention
  • Figure 5 is an exploded perspective view of the electrical connector with filter shown in Figure 4;
  • FIG. 6 is an exploded perspective view showing another preferred embodiment of the electric connector with filter according to the second invention.
  • Figure 7 is a cross-sectional view along the line K-K 'in Figure 6;
  • FIG. 1 is an exploded perspective view showing a preferred embodiment of the electric connector with a filter according to the first invention
  • FIG. 2 is a sectional view taken along the line J-J 'of FIG. 1
  • Figure 3 shows the file
  • FIG. 6 is a cross-sectional view showing another embodiment of the unit.
  • the electric connector with a filter according to the first invention is inserted into a shield frame 32, a filter unit 20 having a hole 21, and the hole 21. And a panel panel 31 interposed between the shield frame 32 and the filter unit 20.
  • the shield frame 32, the leaf spring 31 and the filter unit 20 are fixed with a fixing pin 35.
  • the body 34 or the above-mentioned filter unit may be fixed so as to be able to be accommodated together with these members.
  • the spring 31 has a shape such that it contacts the ground electrode 14 formed on the file unit 20 and the shield frame 32- 4 and the above-mentioned shield frame 32 are electrically connected.
  • the filter unit 20 has one or a plurality of holes 21 for inserting the contact element 33 into the alumina ceramic substrate 11, and further has the holes 21. It has a filter function and a ground electrode corresponding to.
  • the filter function corresponding to the hole means a filter function that acts on the contact element 33 inserted into the hole.
  • the filter function 10 is formed around each of the holes 21, but need not be formed around all the holes. Further, it is not necessary to be formed around the hole 21, and for example, it may be provided at a position adjacent to the hole 21.
  • the number of the holes 21 is generally equal to the number of the contact elements 33 used.
  • the filter function 10 is preferably made of a conductor and a dielectric and / or ferrite. Furthermore, when a high capacitance is required, it is preferable to use a multilayer printing ceramic capacitor as the filter function 10 described above.
  • the filter function 10 is composed of a conductor and a dielectric, as shown in FIG. 2, the filter function 10 includes a lower electrode 12, an upper electrode 14, the lower electrode 12 and the lower electrode 12. It comprises a dielectric layer 13 interposed between upper electrodes and a protective glass layer 15 provided so as to cover the upper electrode 14 and the dielectric layer 13.
  • the upper electrode 14 also functions as the ground electrode.
  • the filter function 10 shown in FIG. 3 includes a conductor, a dielectric, and a flight. That is, in the filter function 10 shown in FIG. 3, the ferrite 56 is provided around the hole 21, the lower electrode 12 is provided so as to surround the ferrite 56, and the upper electrode 14, Induction between the lower electrode 12 and the upper electrode A protective glass layer 15 covering the electric layer 13 and the upper electrode 14 and the dielectric layer 13 is provided. In the filter unit shown in FIG. 3, the upper electrode 14 also functions as the ground electrode.
  • the filter unit 20 is not limited to the above embodiments, and the material, shape, structure, manufacturing method, and the like can be appropriately changed.
  • the above-described file unit 20 is preferably manufactured by a printing technique, and particularly preferably manufactured by a thick-film printing technique.
  • the filter function 10 is not limited to the mode provided on only one surface of the aluminum ceramic substrate 11, but may be provided on both surfaces of the aluminum ceramic substrate 11. They may be provided alternately on the front and back surfaces.
  • the upper electrode 14 is used as a ground electrode, and the lower electrode 12 is used as the contactor.
  • the lower electrode 12 may be used as a ground electrode and the upper electrode 14 may be connected to the contact element 33, or vice versa. Is also good.
  • the upper electrode 14 is used as a ground electrode, and the lower electrode 12 is connected to the connection element 3. 3 and for another filter function
  • the lower electrode 12 may be used as a ground electrode, and the upper electrode 14 may be connected to the contact element 33.
  • the plate panel 31 may be any material and / or structure having panel characteristics or elasticity, and electrical conductivity.For example, a plate, a spring, a wire, rubber, or a resin can be used. .
  • the alumina ceramic substrate 11 is not particularly limited, and other materials may be used as long as they have insulating properties. ,
  • dielectric lead-based base Robusukai preparative structure may, in particular, P b (M g] / 3 N b 2/3) 0 3, P b ( Z n 1/3 Nb 2/3) 0 3, P b T i 0 3 and B i 2 0 3 good dielectric comprising at least one kind selected from the group consisting of.
  • the contact element 33 is inserted into the hole 21 provided in the filter unit 20 and fixed by fixing means.
  • the fixing means is not particularly limited.
  • the contact element 33 can be fixed from one side or both sides of the file unit 20 by soldering.
  • soldering there is no risk of cracking if the filter unit 20 is preheated before soldering.
  • flux residue can be removed. As a result, there is no adverse effect of aging.
  • the shield frame When assembling the filter unit 20 into which the contact element 33 is inserted and fixed into the shield frame 32 (and the body 34 as necessary), the shield frame is used.
  • the above-mentioned leaf spring 31 is sandwiched between the filter electrode 2 and the filter unit 20 so that the ground electrode 14 of the filter unit 20 and the shield frame 3 can be soldered without soldering. 2 can be electrically connected, and the filter unit 20 and the shield frame 32 can be mechanically held.
  • the number of the panel panel 31 is not limited to one, and a plurality of panels may be used as necessary. Since the shielded frame 32 and the filter tub 20 are not soldered in the electric connector 30 with the filter assembled in this manner, cracks due to heat during soldering are eliminated. It does not occur, there is no silver electrode erosion, there is no flux residue at the time of soldering, and it is resistant to temperature cycles, etc.o
  • the order of assembling the above contact elements 33, filter unit 20, body 34, shielded frame 32, leaf spring 31 and retaining pin 35 depends on the shape of the connector. It is not limited.
  • FIG. 4 is a perspective view showing a preferred embodiment of the electric connector with a filter according to the second invention
  • FIG. 5 is an exploded perspective view of the electric connector with a filter shown in FIG. 4
  • FIG. 7 is an exploded perspective view showing another preferred embodiment of the electric connector with a filter according to the second invention
  • FIG. 7 is a sectional view taken along the line KK ′ in FIG. 8 (A) to (C) are perspective views showing various aspects of a contact element with a stopper o
  • FIGS. 4 to 8 the same members as those in FIGS. 1 to 3 are denoted by the same reference numerals.
  • the electric connector with filter according to the second invention is inserted into the shield frame 32, the filter unit 20 having the hole 21, and the hole 21. And a contact element 33 having a stopper 62, a fixing tool 42 inserted into the contact element 33, an intervening part between the shield frame 32 and the filter unit 20. And a body 3 4. Then, the above-mentioned shield frame 32, the above-mentioned spring 31, the above-mentioned filter unit 20, the above-mentioned connecting element 33, the above-mentioned fixing tool 42 and the above-mentioned body 34 are assembled, and a fixing pin is provided. 3 Fix with 5.
  • the panel panel 31 has a shape such that it contacts the ground electrode 14 of the filter unit 20 and the shielded frame 32.
  • the ground electrode 14 and the shield frame 32 are electrically connected.
  • the leaf spring 31 is interposed between the filter tub 20 and the shielded frame 32, and the filter tub 20, the shielded frame 32 and the body 34 are provided. Is mechanically held and fixed.
  • the contact element 33 is passed through the hole 21 from below the filter unit.
  • the fixing tool 42 is inserted from below the contact element 33, and is interposed between the filter unit 20 and the body 34.
  • the body 34 is capable of accommodating the filter 20.
  • the contact element 33 is pressed and fixed to the filter unit by the fixing tool 42 via the stopper 62.
  • the filter unit 20 the filter function 10, and the ground electrode 14 the description described in detail in the first aspect of the invention is applied to the second aspect as appropriate.
  • an electric connector with a filter can be manufactured without any soldering.
  • the assembling order is not particularly limited since it differs depending on the shape of the connector.
  • the fixture 42 mechanically holds the contact element 33 and, particularly, when the filter function 10 is made of a conductor and a dielectric, the electrode made of the conductor and the electrode
  • the contact element 33 is electrically connected.
  • a washer, a spring, or a rubber is preferable. In FIGS. 4 and 5, rubber is used as the fixing tool 42, and in FIGS. 6 and 7, a washer is used as the fixing tool 42.
  • the shape of the stopper 62 in the contact element 33, and the contact element 33 is connected to the filter unit 20 in cooperation with the fixing tool 42 is no particular limitation on the shape of the stopper 62 in the contact element 33, and the contact element 33 is connected to the filter unit 20 in cooperation with the fixing tool 42. Any shape can be used as long as it can be pressed.
  • contact elements as shown in FIGS. 8A to 8C can be preferably used.
  • the electric connector 30 with the filter assembled in this manner is composed of a shield frame 32 and a fin unit 20 in half. Since the contact element 33 is not soldered and the file unit 20 is not soldered, a crack may occur due to heat during soldering. Ku but exactly the silver electrodes eaten also quite Ku, soldering when the hula Tsu camphor residue entire Ku Do rather, also, the following c characterized in stronger like on the temperature cycle, the present invention An embodiment of such an electrical connector with a filter will be described.
  • the electric connector with filter according to the present invention is not limited to the following embodiments.
  • the screen printing of the dielectric paste may be performed once or a plurality of times, but in this embodiment, the screen printing and drying are performed three times, and then the peak temperature of 900 ° C. for 10 minutes is performed.
  • a dielectric layer 13 was formed.
  • an Ag—Pd-based conductive layer is formed so as to overlap with the dielectric layer 13 without directly contacting the lower electrode 12.
  • the screen was screen-printed, dried, and fired at 900 ° C. for 10 minutes to form an upper electrode 14.
  • a glass paste for an overcoat is screen-printed on portions where the lower electrode is exposed on the surface and on portions other than both ends in the longitudinal direction of the upper electrode, and dried, and then dried. Then, baking was performed for 10 minutes to form a protective glass layer 15, thereby producing a filter unit 20.
  • the contact element 33 is inserted into the hole 21 of the filter unit 20, preheated to about 180 ° C, and then the contact element 33 is connected to the solder 22.
  • the contact element 33 was fixed to the filter unit 20 by soldering from both sides of the unit 20 and electrically connected to the lower electrodes 12 and 12 '. Then, ultrasonic cleaning was performed to remove the flux.
  • the panel panel 31 was inserted between the filter unit 20 to which the contact element 33 was fixed and the shielded frame 32. Then, these were fixed together with the body 34 with the retaining pin 35 to make the electrical connector with filter 30.
  • the leaf spring 31 electrically connected the upper electrode 14 to the shielded frame 32.
  • the upper electrode 14 serves as a ground electrode and enhances the electromagnetic shielding effect together with the shield frame 32. That is, the electric connector with filter of the present embodiment has a high noise attenuation effect. Also, the contact element 33 is very fixed because it is soldered from both sides of the filter unit 20 High strength and high reliability.
  • the electrical connector with filter shown in Fig. 3 was fabricated.
  • ferrite paste is screen-printed on the inner wall surface of the hole 21 of the alumina ceramic substrate 11 having a plurality of holes 21, and after drying, 900 ° C. 100
  • the ferrite layer 56 was formed by baking for 5 minutes.
  • an Ag—Pd conductive paste is screen-printed on one side of the alumina ceramic substrate 11, dried, and baked at 850 ° C. for 10 minutes.
  • the unit electrodes 12 were formed.
  • a dielectric layer 13, an upper electrode 14, and a protective glass layer 15 were formed in substantially the same manner as in Example 1 to produce a filter unit 20.
  • the contact element 33 is inserted into the hole 21 of the filter unit 20 and preheated to approximately 180 ° C, and then the contact element 33 is soldered to the solder 22.
  • the contact element 33 was fixed to the filter unit 20 by soldering from one side of the filter unit 20 and electrically connected to the lower electrode 12. Next, ultrasonic cleaning was performed to remove the flux.
  • a leaf spring 31 is sandwiched between the filter unit 20 and the shield frame 32 in substantially the same manner as in the first embodiment.
  • An electric connector 30 with a filter was manufactured. ⁇
  • the spring 31 electrically connects the upper electrode 14 to the shielded frame 3 2, and as a result,
  • the part electrode 14 is used as a ground electrode to enhance the electromagnetic shielding effect together with the shield frame 32. That is, the electric connector with a filter according to the present embodiment has a high effect of attenuating noise.
  • the electrical connector with a filter shown in FIGS. 4 and 5 was fabricated.
  • a filter unit 20 having 10 and a ground electrode was produced.
  • the contact element 33 having the stopper 62 is passed through the hole 21 from below the filter unit 20 (the surface on which the filter function is not formed), and further the same.
  • a rubber 42 having a contact element insertion hole as a fixture was fitted into the contact element 33 from the direction.
  • the shielded frame 32, the leaf spring 31, the filter unit 20 and the body 34 were assembled in this order, and these were fixed with the fixing pins 35 and an electric connector with a filter which was not soldered was manufactured. .
  • the electric connector with the filter thus manufactured is electrically connected to the upper electrode 14 of the filter function 10 acting as a ground electrode and the shielded frame 3 2 by the spring 31. It is connected. Further, the contact element 33 pressed against the filter unit 20 by the rubber 42 via the stopper 62 is electrically connected to the lower electrode of the filter function 10. Has been continued.
  • the electric connector with a filter according to the present embodiment has a high electromagnetic wave shielding effect and a high noise attenuation effect. Moreover, it is manufactured by a simplified assembly process without soldering process, has no cracks, has no flux residue, is resistant to temperature cycles, and has high reliability. It is.
  • a filter unit 20 having 10 and a ground electrode was produced.
  • a contact element 33 having a stopper 62 is inserted into the hole 21 from the lower side of the filter unit 20 (the side on which the filter function is not formed).
  • the washer 42 as a fixture was inserted into the contact element 33 from the direction.
  • the shielded frame 32, the plate panel 31, the filter unit 20 and the body 34 were successively inserted. These were assembled, and these were assembled and fixed with stop pins 35, and an electric connector with a filter that was not soldered was manufactured.
  • the filter-equipped electrical connector of this embodiment has a high electromagnetic wave shielding effect and a high noise attenuation effect. Moreover, it is manufactured by a simplified assembly process without soldering process, there is no crack, there is no residue of frattas, it is strong in temperature cycle, and it has high reliability. is there.
  • An electrical connector with a filter was manufactured in substantially the same manner as in Example 4 except that a spring was used instead of the washer 42 as a fixture in Example 4 and the same as Example 4 was performed. Was obtained.
  • an electromagnetic wave shielding effect is high and the effect of attenuating an unnecessary part of an electromagnetic wave signal is high.
  • the filter unit and the shielded frame are not soldered, there is no danger of cracking. It is resistant to temperature cycles and has high reliability.
  • the electrical connection can be made only by overlapping the shielded frame, the plate panel, and the filter unit (and the body if necessary) and fixing them with the fixing pins. ⁇ Mechanical holding is possible, and the process can be simplified.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

Le connecteur à filtre selon la présente invention comprend un cadre protecteur, un élément filtrant présentant un orifice, un élément de contact passant à travers le filtre, et un ressort à lames placé entre le cadre protecteur et l'élément filtrant; cet élément filtrant filtre en fonction de l'orifice et est doté d'une électrode de mise à la terre; cette électrode et le cadre protecteur sont reliés électriquement par le ressort à lames, tandis que l'élément filtrant et le cadre protecteur sont mécaniquement retenus et fixés par le ressort à lames. Selon une autre variante, le connecteur peut comporter un cadre protecteur, un élément filtrant présentant un orifice, un élément de contact doté d'un obturateur passant par l'orifice, un élément de fixation inséré dans l'élément de contact, un ressort à lames placé entre le cadre protecteur et l'élément filtrant, et un corps dans lequel l'élément filtrant filtre en fonction de l'orifice et est doté d'une électrode de mise à la terre; cette électrode et le cadre protecteur sont électriquement reliés par le ressort à lames filtrant et le cadre protecteur sont mécaniquement retenus et fixés par le ressort à lames, et l'élément de contact est poussé vers l'élément filtrant par l'élément de fixation par l'intermédiaire de l'obturateur.
PCT/JP1995/000125 1994-02-03 1995-01-31 Connecteur a filtre WO1995021475A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019950704276A KR960702197A (ko) 1994-02-03 1995-01-31 필터를 갖춘 전기커넥터(electrical connector with filter)
EP95906548A EP0692848A4 (fr) 1994-02-03 1995-01-31 Connecteur a filtre

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP6/30804 1994-02-03
JP6030804A JPH07220820A (ja) 1994-02-03 1994-02-03 フィルタ付電気コネクタ
JP6066504A JPH07249459A (ja) 1994-03-11 1994-03-11 フィルタ付電気コネクタ
JP6/66504 1994-03-11

Publications (1)

Publication Number Publication Date
WO1995021475A1 true WO1995021475A1 (fr) 1995-08-10

Family

ID=26369216

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1995/000125 WO1995021475A1 (fr) 1994-02-03 1995-01-31 Connecteur a filtre

Country Status (5)

Country Link
EP (1) EP0692848A4 (fr)
KR (1) KR960702197A (fr)
CN (1) CN1123065A (fr)
CA (1) CA2159357A1 (fr)
WO (1) WO1995021475A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1086060C (zh) * 1997-08-12 2002-06-05 鸿海精密工业股份有限公司 滤波连接器
CN114094403A (zh) * 2019-08-09 2022-02-25 华为技术有限公司 滤波连接装置及滤波方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63175440A (ja) * 1986-12-22 1988-07-19 テキサス　インスツルメンツ　インコーポレイテツド 電気的能動トレンチを用いたバイポーラ及びｃｍｏｓの組み合わせ技術
JPH04129185A (ja) * 1990-09-20 1992-04-30 Yazaki Corp ノイズ防止コネクタ

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2615977B2 (ja) * 1989-02-23 1997-06-04 松下電器産業株式会社 誘電体磁器組成物およびこれを用いた積層セラミックコンデンサとその製造方法
DE9107385U1 (fr) * 1991-06-14 1992-07-16 Filtec Filtertechnologie Fuer Die Elektronikindustrie Gmbh, 4780 Lippstadt, De

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63175440A (ja) * 1986-12-22 1988-07-19 テキサス　インスツルメンツ　インコーポレイテツド 電気的能動トレンチを用いたバイポーラ及びｃｍｏｓの組み合わせ技術
JPH04129185A (ja) * 1990-09-20 1992-04-30 Yazaki Corp ノイズ防止コネクタ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0692848A4 *

Also Published As

Publication number Publication date
CA2159357A1 (fr) 1995-08-10
EP0692848A1 (fr) 1996-01-17
KR960702197A (ko) 1996-03-28
EP0692848A4 (fr) 1997-07-23
CN1123065A (zh) 1996-05-22

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