JPH09512367A - 保持体要素 - Google Patents
保持体要素Info
- Publication number
- JPH09512367A JPH09512367A JP8509118A JP50911896A JPH09512367A JP H09512367 A JPH09512367 A JP H09512367A JP 8509118 A JP8509118 A JP 8509118A JP 50911896 A JP50911896 A JP 50911896A JP H09512367 A JPH09512367 A JP H09512367A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- coil
- flags
- carrier element
- semiconductor chip
- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/0775—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for connecting the integrated circuit to the antenna
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07745—Mounting details of integrated circuit chips
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07773—Antenna details
- G06K19/07777—Antenna details the antenna being of the inductive type
- G06K19/07779—Antenna details the antenna being of the inductive type the inductive antenna being a coil
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07773—Antenna details
- G06K19/07777—Antenna details the antenna being of the inductive type
- G06K19/07779—Antenna details the antenna being of the inductive type the inductive antenna being a coil
- G06K19/07783—Antenna details the antenna being of the inductive type the inductive antenna being a coil the coil being planar
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
- H01L23/3107—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed
- H01L23/3121—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed a substrate forming part of the encapsulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
- H01L23/49855—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers for flat-cards, e.g. credit cards
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
- H05K3/3421—Leaded components
- H05K3/3426—Leaded components characterised by the leads
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/4501—Shape
- H01L2224/45012—Cross-sectional shape
- H01L2224/45014—Ribbon connectors, e.g. rectangular cross-section
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/42—Wire connectors; Manufacturing methods related thereto
- H01L24/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L24/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/00014—Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01079—Gold [Au]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/151—Die mounting substrate
- H01L2924/153—Connection portion
- H01L2924/1531—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface
- H01L2924/15311—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface being a ball array, e.g. BGA
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- H—ELECTRICITY
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- H01L2924/181—Encapsulation
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
(57)【要約】
特にチップカードのなかに組み込むための保持体要素であって、導体保持体(1)の上に配置されており、またその接触フラグ(5、6;5、7)と電気的に接続されている半導体チップ(2)を有し、その際に少なくとも半導体チップ(2)と、接触フラグ(5、6;5、7)とのその接続のために設けられているボンディングワイヤー(3)とが合成樹脂材料(4)により、接触フラグ(5、6;5、7)が半導体チップ(2)への導電性の接続として合成樹脂材料(4)から突き出るように、包囲されている保持体要素において、合成樹脂材料(4)の表面の1つの上の接触フラグが接触面(5)を形成し、その際に接触フラグの少なくとも2つが追加的に接触面(5)の延長部のなかにアンテナコイルの端部に対する接続端(6;7)を形成する。
Description
【発明の詳細な説明】
保持体要素
本発明は、特にチップカードのなかに組み込むための保持体要素であって、当
業者から一般にリードフレームと呼ばれる導体保持体の上に配置されており、ま
たその接触フラグと電気的に接続されている半導体チップを有し、その際に少な
くとも半導体チップと、接触フラグとのその接続のために設けられているボンデ
ィングワイヤーとが合成樹脂材料により、接触フラグが半導体チップへの導電性
の接続として合成樹脂材料から突き出るように、包囲されている保持体要素に関
する。
このような保持体要素はヨーロッパ特許出願公開第 0254640号明細書から公知
である。この公知の保持体要素は、読出し装置から接触フラグを介しての機械的
接触によりエネルギーを供給されるチップカードのなかに入れられる。データフ
ローも接触フラグを介して機械的接触により伝達される。
ドイツ特許第 4115065号明細書から、エネルギーおよびデータがアンテナコイ
ルを介して、すなわち電磁誘導結合により伝達される無接触チップカードが公知
である。そこではアンテナコイルの端部がチップカードの半導体チップと接続さ
れており、その際にチップカードは外方にその他の接触を有していない。このよ
うな無接触チップカードの検査はその場合に組立られたコイルを介してのみ可能
である。
本発明の課題は、無接触チップカードのなかに組み込むのに適しており、また
接続されたコイルなしに検査を可能にし、またそれにコイルを組み立てるのに適
している保持体要素を提供することにある。
この課題は請求項1による保持体要素により解決される。本発明の有利な実施
態様は従属請求項に記載されている。
接触フラグによる半導体チップの合成樹脂包被の表面の上に本発明により接触
面を構成することにより、接触フラグの延長部にアンテナが接続されることなし
に、たとえば検査の目的での機械的接触によるチップへの電気的アクセスが可能
である。検査はアンテナが接続されていても可能であるが、アンテナは本発明に
よる構成に基づいて使用されなくてよい。
接触フラグ延長部が保持体要素の向かい合う側に配置されているならば、保持
体要素は有利なことに直接に平坦なコイルのターンの上に置かれ、また、コイル
端がターンと重ならなくてよいように、コイル端と接触され得る。このようにし
て、Q値のようなコイル品質値の高い再現性をもたらす保持体要素‐コイルの接
続の容易に自動化可能な製造が可能である。
相い異なる長さを有する接触フラグ延長部の構成により、接触フラグ延長部の
長いほうがターンの上もしくは下を導かれるので、同じくコイル端の重なりのな
い接触形成が可能である。その際に、保持体要素を、それが曲げ応力により最も
強く負荷されるチップカードの中心線から遠く離れて配置されるように、チップ
カードの縁の付近またはコーナーに置くことが可能である。
以下、図面に示す実施例により本発明を一層詳細に説明する。
図1および図2は本発明による保持体要素のそれぞれ断面図、また
図3は組立られた保持体要素の斜視図である。
図1、図2および図3によれば半導体チップ2が導体保持体1の上に取付けら
れ、たとえば接着されており、またボンディングワイヤー3によりその接触フラ
グ5、6または5、7と導電的に接続されている。半導体チップ2およびボンデ
ィングワイヤー3はケース4を形成する合成樹脂材料4により鋳込まれている。
導体保持体1の接触フラグは、それらが合成樹脂材料4の表面に配置されている
接触面5を形成するように成形されている。接触面5の延長部はアンテナコイル
の端部に対する接続端を形成する。図1中では接触フラグ延長部は、それらがア
ンテナターンの下側を導かれるように、、2回曲げられている。図2中では接触
面の延長部は、それらがアンテナターンの上側を導かれるように、接触面と等し
い平面内を延びている。図3は本発明による保持体要素の特に有利な組立を示す
。ここでは保持体要素は直接に平坦なコイルのターン9の上に被覆されており、
また保持体要素の向かい合う側に配置されている接触フラグ延長部の2つはコイ
ルの端部と接続されている。このようにして保持体要素自体がコイルターンの橋
かけを形成する。それによって特に容易に自動化可能かつ良好に再現可能な組立
可
能性が得られる。アンテナターン9はその際に印刷された導体としてカード入れ
子8の上に実現されていてよい。半導体チップは本発明による保持体要素では接
触面5により組立てられた保持体要素においても、組立てられていない保持体要
素においても問題なしに機械的接触により検査することができる。
Claims (1)
- 【特許請求の範囲】 1.特にチップカードのなかに組み込むための保持体要素であって、導体保持体 (1)の上に配置されており、またその接触フラグ(5、6;5、7)と電気的 に接続されている半導体チップ(2)を有し、その際に少なくとも半導体チップ (2)と、接触フラグ(5、6;5、7)とのその接続のために設けられている ボンディングワイヤー(3)とが合成樹脂材料(4)により、、接触フラグ(5 、6;5、7)が半導体チップ(2)への導電性の接続として合成樹脂材料(4 )から突き出るように、包囲されている保持体要素において、合成樹脂材料(4 )の表面の1つの上の接触フラグが接触面(5)を形成し、その際に接触フラグ の少なくとも2つが追加的に接触面(5)の延長部のなかにアンテナコイルの端 部に対する接続端(6;7)を形成することを特徴とする保持体要素。 2.少なくとも2つの接触フラグのコイル接続端(6;7)が相い異なる長さを 有することを特徴とする請求項1記載の保持体要素。 3.少なくとも2つの接触フラグのコイル接続端(6;7)が保持体要素の向か い合う側に配置されていることを特徴とする請求項1または2記載の保持体要素 。 4.少なくとも2つの接触フラグのコイル接続端が互いに平行に配置されている ことを特徴とする請求項1または2記載の保持体要素。 5.少なくとも2つの接触フラグのコイル接続端が互いに垂直に配置されている ことを特徴とする請求項1または2記載の保持体要素。 6.少なくとも2つの接触フラグの接触面(5)およびコイル接続端(6)が1 つの平面内に位置していることを特徴とする請求項1ないし5の1つに記載の保 持体要素。 7.少なくとも2つの接触フラグの接触面(5)およびコイル接続端(6)が相 い異なる平面内に位置していることを特徴とする請求項1ないし5の1つに記載 の保持体要素。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4431754A DE4431754C1 (de) | 1994-09-06 | 1994-09-06 | Trägerelement |
DE4431754.9 | 1994-09-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09512367A true JPH09512367A (ja) | 1997-12-09 |
JP2785232B2 JP2785232B2 (ja) | 1998-08-13 |
Family
ID=6527572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8509118A Expired - Fee Related JP2785232B2 (ja) | 1994-09-06 | 1995-09-05 | 保持体要素 |
Country Status (9)
Country | Link |
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EP (1) | EP0780005B1 (ja) |
JP (1) | JP2785232B2 (ja) |
KR (1) | KR100358786B1 (ja) |
CN (1) | CN1110771C (ja) |
AT (1) | ATE173552T1 (ja) |
DE (2) | DE4431754C1 (ja) |
ES (1) | ES2125649T3 (ja) |
RU (1) | RU2124756C1 (ja) |
WO (1) | WO1996007983A1 (ja) |
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1994
- 1994-09-06 DE DE4431754A patent/DE4431754C1/de not_active Expired - Fee Related
-
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- 1995-09-05 WO PCT/DE1995/001200 patent/WO1996007983A1/de active IP Right Grant
- 1995-09-05 EP EP95929752A patent/EP0780005B1/de not_active Expired - Lifetime
- 1995-09-05 DE DE59504284T patent/DE59504284D1/de not_active Expired - Fee Related
- 1995-09-05 AT AT95929752T patent/ATE173552T1/de not_active IP Right Cessation
- 1995-09-05 RU RU97105188A patent/RU2124756C1/ru not_active IP Right Cessation
- 1995-09-05 KR KR1019970701474A patent/KR100358786B1/ko not_active IP Right Cessation
- 1995-09-05 ES ES95929752T patent/ES2125649T3/es not_active Expired - Lifetime
- 1995-09-05 JP JP8509118A patent/JP2785232B2/ja not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
CN1110771C (zh) | 2003-06-04 |
JP2785232B2 (ja) | 1998-08-13 |
RU2124756C1 (ru) | 1999-01-10 |
CN1160449A (zh) | 1997-09-24 |
EP0780005B1 (de) | 1998-11-18 |
KR100358786B1 (ko) | 2003-04-23 |
DE4431754C1 (de) | 1995-11-23 |
EP0780005A1 (de) | 1997-06-25 |
ATE173552T1 (de) | 1998-12-15 |
KR970705804A (ko) | 1997-10-09 |
ES2125649T3 (es) | 1999-03-01 |
DE59504284D1 (de) | 1998-12-24 |
WO1996007983A1 (de) | 1996-03-14 |
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