WO1999063627A1 - Double adherent electrically conductive tape - Google Patents
Double adherent electrically conductive tape Download PDFInfo
- Publication number
- WO1999063627A1 WO1999063627A1 PCT/SE1999/000885 SE9900885W WO9963627A1 WO 1999063627 A1 WO1999063627 A1 WO 1999063627A1 SE 9900885 W SE9900885 W SE 9900885W WO 9963627 A1 WO9963627 A1 WO 9963627A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tape
- electrically conductive
- strip
- adherent
- edge
- Prior art date
Links
Classifications
-
- 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
- H05K3/36—Assembling printed circuits with other printed circuits
- H05K3/361—Assembling flexible printed circuits with other printed circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/02—Single bars, rods, wires, or strips
- H01B5/04—Single bars, rods, wires, or strips wound or coiled
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/04—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation using electrically conductive adhesives
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/0929—Conductive planes
- H05K2201/09354—Ground conductor along edge of main surface
-
- 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
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/403—Edge contacts; Windows or holes in the substrate having plural connections on the walls thereof
Definitions
- the present invention concerns a double adherent, electrically conductive tape comprising an elastic and flexible tape being adherent on both sides, and an electrically conductive material applied along at least one edge of the tape.
- Such a tape is previously known (e.g. of the kind marketed by 3M under the designation 3M 7303 ZAF) and may be used, e.g., to connect flexible printed circuits with circuit cards or to keep tape connected metal parts at the same electrical potential. Similar applications are found in a number of industrial connections, for instance in mobile phones and m electrically shielded apparatus cabinets.
- the electrically conductive material comprises small powder shaped particles mixed as an additive into the material constituting the tape itself.
- the denseness of the metal particles must be relatively great, such that the different particles contact each other and ensure electric conduction across the tape (but not always in the longitudinal direction of the tape) .
- a further object of the present invention is to provide such a tape that, not withstanding the good electrical conductivity and good adherence ability at both sides, has a good flexibility and elasticity.
- the electrically conductive material is in the form of at least one continuous strip folded in the longitudinal direction of the tape about en edge of the tape being adherent on both sides.
- the electrically conductive strip may comprise a metal strip having a thickness of 10 - 500 ⁇ m. In using such a thin metal strip, for instance of a soft metal as Cu, the tape can maintain is elasticity and flexibility.
- the tape can easily be wound as a reel if one side of the tape is coated with a non-adhering protective foil.
- an electrically conductive strip may of course be applied at both edges of the tape.
- the electrically conductive tape suitably has a somewhat less thickness than the tape.
- the strip can be folded and pressed into the material of the tape such that the outer side of the strip is substantially flush with the free part of the tape on both sides of the tape.
- the tape can be used m the normal way for a double adhesive tape, and, further, winding of the tape to a reel is facilitated.
- the folded strip should cover an edge portion forming only a minor part of the entire width of the tape.
- Relations between the width of the edge portion and the entire width of the tape suitably amount to 0, 01 - 0, 5.
- Fig. 1 shows schematically a perspective view of a tape according to the invention wound to a reel
- Fig. 2 shows a cross section through the tape according to Fig. 1;
- Fig. 3 shows a modified embodiment of the tape according to the invention.
- the tape according to the present invention shown m Figs. 1 and 2 comprises substantially a homogenous tape 1 including an elastic and flexible material having adherent properties, for instance of acrylic type, and a relatively thin, continuous electrically conductive strip 2 folded about an edge of the tape 1.
- the tape 1 has a substantially rectangular cross section having a width of 5 - 200 mm and a thickness of 0,1 - 5 mm. Of course the width is substantially greater that the thickness. Preferably, the width is 8 - 100 mm and the thickness 0,5 - 2 mm.
- the folded strip 2 has a substantially less thickness, viz. 10 - 500 ⁇ m, preferably 20 - 100 ⁇ m, and preferably comprises a thin strip of metal having good electrical conductivity, for instance copper, silver or gold or, if the requirements of electric conductivity are not high, aluminium.
- the metal strip can easily be folded under certain compression of the material of the tape 1, such that the upper and lower legs 2a, 2b of the strip are substantially flush with the free upper and lower surfaces, respectively, of the tape.
- the winding of the tape on a reel is facilitated, preferably with a non-adhering protecting foil 3, as shown in Fig. 1, and, further, the normal use of the tape is facilitated. Consequently, a good contact is ensured against mutually plane parallel surfaces of objects to be interconnected by means of the tape.
- the simplest manner is to fold the electrically conductive strip 2 symmetrically about the edge of the tape 1, such that the upper and lower legs 2a, 2b become equally long. If desired, for instance in order to ensure a larger contact surface on one side, it is conceivable to let one leg 2a or 2b be larger than the other one.
- a certain press power is normally applied such that the tape is brought to good contact with the surfaces of the components even in case of possible unevenness. It is realised that good electric contact is hereby obtained between the legs 2a, 2b of the electrically conductive strip and the respective component.
- the variant shown in Fig. 3 differs from the embodiment of Figs. 1 and 2 only in that an electrically conductive strip 2 is applied at each edge of the tape 1. Such a tape becomes somewhat more expensive to manufacture, but due to the symmetry its winding is facilitated, and the electrical conductivity between the opposed sides becomes even better.
- the tape 1 may comprise a multi-layer structure, for instance having a central carrying layer and opposed adhesive layers.
- the tape 1 may comprise a multi-layer structure, for instance having a central carrying layer and opposed adhesive layers.
- the tape 1 may comprise a multi-layer structure, for instance having a central carrying layer and opposed adhesive layers.
- the materials of the tape 1 and the electrically conductive strip 2 may be chosen according to the wish of the skilled person in view of the required properties of the tape in specific applications.
- a tape according to the present invention offers conductive properties not only across the tape, but also in its longitudinal direction, that are superior to those of a tape having electrically conductive particles mixed into its material.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU46636/99A AU4663699A (en) | 1998-05-29 | 1999-05-25 | Double adherent electrically conductive tape |
EP99930014A EP1082783A1 (en) | 1998-05-29 | 1999-05-25 | Double adherent electrically conductive tape |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9801926A SE512353C2 (en) | 1998-05-29 | 1998-05-29 | Double adhesive, electrically conductive tape |
SE9801926-8 | 1998-05-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999063627A1 true WO1999063627A1 (en) | 1999-12-09 |
Family
ID=20411528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1999/000885 WO1999063627A1 (en) | 1998-05-29 | 1999-05-25 | Double adherent electrically conductive tape |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1082783A1 (en) |
AU (1) | AU4663699A (en) |
SE (1) | SE512353C2 (en) |
WO (1) | WO1999063627A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003044900A1 (en) * | 2001-11-20 | 2003-05-30 | Tyco Electronics Corporation | Connector module organizer |
DE102006026688A1 (en) * | 2006-06-08 | 2007-12-13 | Trw Automotive Gmbh | Vehicle occupant protection device e.g. airbag module, has electrically operated device e.g. pressure feed of gas generator, with plastic surface, on which label is applied to produce electric contact or conductor section |
JP2015160895A (en) * | 2014-02-27 | 2015-09-07 | シャープ株式会社 | Conductive double-sided tape and electronic apparatus using the conductive double-sided tape |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4666547A (en) * | 1985-03-29 | 1987-05-19 | Snowden Jr Thomas M | Electrically conductive resinous bond and method of manufacture |
EP0508722A1 (en) * | 1991-04-12 | 1992-10-14 | Minnesota Mining And Manufacturing Company | Electrically conductive adhesive tape |
US5180888A (en) * | 1989-08-10 | 1993-01-19 | Casio Computer Co., Ltd. | Conductive bonding agent and a conductive connecting method |
US5281176A (en) * | 1991-07-22 | 1994-01-25 | Daido Tokushuko Kabushiki Kaisha | Contact member with composite sintered metal paste strip having 1-5 wt % carbon diffusion bonded therein |
-
1998
- 1998-05-29 SE SE9801926A patent/SE512353C2/en not_active IP Right Cessation
-
1999
- 1999-05-25 WO PCT/SE1999/000885 patent/WO1999063627A1/en not_active Application Discontinuation
- 1999-05-25 EP EP99930014A patent/EP1082783A1/en not_active Withdrawn
- 1999-05-25 AU AU46636/99A patent/AU4663699A/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4666547A (en) * | 1985-03-29 | 1987-05-19 | Snowden Jr Thomas M | Electrically conductive resinous bond and method of manufacture |
US5180888A (en) * | 1989-08-10 | 1993-01-19 | Casio Computer Co., Ltd. | Conductive bonding agent and a conductive connecting method |
EP0508722A1 (en) * | 1991-04-12 | 1992-10-14 | Minnesota Mining And Manufacturing Company | Electrically conductive adhesive tape |
US5281176A (en) * | 1991-07-22 | 1994-01-25 | Daido Tokushuko Kabushiki Kaisha | Contact member with composite sintered metal paste strip having 1-5 wt % carbon diffusion bonded therein |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003044900A1 (en) * | 2001-11-20 | 2003-05-30 | Tyco Electronics Corporation | Connector module organizer |
CN1310377C (en) * | 2001-11-20 | 2007-04-11 | 蒂科电子公司 | Connector module organizer |
DE102006026688A1 (en) * | 2006-06-08 | 2007-12-13 | Trw Automotive Gmbh | Vehicle occupant protection device e.g. airbag module, has electrically operated device e.g. pressure feed of gas generator, with plastic surface, on which label is applied to produce electric contact or conductor section |
JP2015160895A (en) * | 2014-02-27 | 2015-09-07 | シャープ株式会社 | Conductive double-sided tape and electronic apparatus using the conductive double-sided tape |
Also Published As
Publication number | Publication date |
---|---|
SE512353C2 (en) | 2000-03-06 |
SE9801926D0 (en) | 1998-05-29 |
SE9801926L (en) | 1999-11-30 |
AU4663699A (en) | 1999-12-20 |
EP1082783A1 (en) | 2001-03-14 |
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