# US 2014/0193985 A1 · Electrically conductive connecting member, method of forming and using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0193985 A1 - Document ID: US20140193985A1 - Status: Published application - Kind: A1 - Application number: 14/151,826 - Filed: 2014-01-10 - Published: 2014-07-10 - Earliest claimed: 2013-01-10 - Assignees: Pioneer Material Precision Tech Co., Ltd. - Applicants: Pioneer Material Precision Tech Co., Ltd. - Inventors: Peng-Cheng Wang; Yuan-Shun Tsai; Yi-Lun Chen - Web page: https://patentgrep.com/patent/US20140193985A1 ## CPC - H01R 13/2414: {conductive elastomers} - H01B 1/20: Conductive material dispersed in non-conductive organic material {(organic macromolecular compounds or compositions C08)} - H01R 43/007: {for elastomeric connecting elements} - B29C 2045/14352: {injecting into blind holes} - B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites - H01R 12/7082: {Coupling device supported only by cooperation with PCB} - Y10S 977/932: for electronic or optoelectronic application - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS - H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K}) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract An electrically conductive connecting member includes an electrically insulating elastomer and an electrically conducting elastomer. The conductive connecting member has a Shore Hardness type A from 5 to 90 degrees, water-resistant ability up to 0.1 kgf/cm2 and 10%˜20% compression set. The conductive connecting member is capable of remaining good resilience, water-resistance and electric conductivity after long term use. ## Claims ### Claim 1 An electrically conductive connecting member, comprising: an electrically insulating elastomer having a cavity and at least one opening and comprising: a first silicone-rubber-based material, comprising 99.99 wt. %-10 wt. % of a first polysiloxane and 0.01 wt. %-10 wt. % of a curing agent, based on the total weight of said electrically insulating elastomer, wherein said at least one opening has an area of 50-0.5 mm2; and an electrically conducting elastomer filling said at least one opening, filling up said cavity and comprising: a second silicone-rubber-based material, comprising 94.99 wt. %-10 wt. % of a second polysiloxane material, and 0.01 wt. %-10 wt. % of a platinum curing agent; and 5 wt. %-80 wt. % of a conductive additive, based on the total weight of said electrically conducting elastomer. ### Claim 2 (depends on 1) The electrically conductive connecting member of claim 1, wherein said curing agent comprises at least one of a platinum curing agent and a peroxide curing agent. ### Claim 3 (depends on 1) The electrically conductive connecting member of claim 1, wherein said first silicone-rubber-based material further comprises at least one of diatomite, titanium dioxide, aluminum oxide, boron nitride, aluminum nitride, zinc oxide, aluminum hydroxide, magnesium oxide, silicon oxide and silicone oil. ### Claim 4 (depends on 1) The electrically conductive connecting member of claim 1, wherein said second silicone-rubber-based material further comprises at least one of diatomite, titanium dioxide, aluminum oxide, boron nitride, aluminum nitride, zinc oxide, aluminum hydroxide, magnesium oxide, silicon oxide and silicone oil. ### Claim 5 (depends on 1) The electrically conductive connecting member of claim 1, wherein said conductive additive comprises at least one of silver coated glass beads, nickel carbide and carbon nanotubes. ### Claim 6 (depends on 1) The electrically conductive connecting member of claim 1, wherein said electrically insulating elastomer has a volume resistivity greater than 1012 ohm*cm and said electrically conducting elastomer has a volume resistivity less than 0.5 ohm*cm. ### Claim 7 (depends on 1) The electrically conductive connecting member of claim 1, wherein said electrically conducting elastomer which is not surrounded by said electrically insulating elastomer has a single side surface area of 50-0.5 mm2. ### Claim 8 (depends on 1) The electrically conductive connecting member of claim 1 of a Shore Hardness type A from 5 to 90 degrees. ### Claim 9 (depends on 1) The electrically conductive connecting member of claim 1, wherein said electrically insulating elastomer is in a form of a long strip and said electrically conducting elastomer is in a form of a plurality of isolated island-like units. ### Claim 10 (depends on 1) The electrically conductive connecting member of claim 1, of 10%-20% compression set according to ASTM D 395. ### Claim 11 (depends on 1) The electrically conductive connecting member of claim 1, of a water-resistant ability up to 0.1 kgf/cm2. ### Claim 12 A method for forming an electrically conductive connecting member, comprising: providing a solid electrically insulating elastomer material comprising a first silicone-rubber-based material comprising a solid polysiloxane material; providing a liquid electrically conducting elastomer material comprising a conductive additive and a second silicone-rubber-based material which comprises a liquid polysiloxane material; and curing said liquid electrically conducting elastomer material to attach said liquid electrically conducting elastomer material to said solid electrically insulating elastomer material to obtain an electrically conductive connecting member. ### Claim 13 (depends on 12) The method of claim 12, wherein said first silicone-rubber-based material further comprises at least one of a platinum curing agent and a peroxide curing agent. ### Claim 14 (depends on 12) The method of claim 12, wherein said first silicone-rubber-based material further comprises at least one of diatomite, titanium dioxide, aluminum oxide, boron nitride, aluminum nitride, zinc oxide, aluminum hydroxide, magnesium oxide, silicon oxide and silicone oil. ### Claim 15 (depends on 12) The method of claim 12, wherein said second silicone-rubber-based material further comprises 0.01 wt. %-10 wt. % of a platinum curing agent, based on the total weight of said electrically conducting elastomer material. ### Claim 16 (depends on 12) The method of claim 12, wherein said second silicone-rubber-based material further comprises at least one of diatomite, titanium dioxide, aluminum oxide, boron nitride, aluminum nitride, zinc oxide, aluminum hydroxide, magnesium oxide, silicon oxide and silicone oil. ### Claim 17 (depends on 12) The method of claim 12, further comprising: compounding said second silicone-rubber-based material to be said liquid electrically conducting elastomer material. ### Claim 18 (depends on 12) The method of claim 12, wherein said conductive additive comprises at least one of silver coated glass beads, nickel carbide and carbon nanotubes. ### Claim 19 (depends on 12) The method of claim 12, further comprising: curing said solid electrically insulating elastomer material under a temperature of 80° C. to 220° C. and a pressure of 20 kgf/cm2-200 kgf/cm2 to obtain an electrically insulating elastomer comprising a cavity and at least one opening which has an area of 50-0.5 mm2. ### Claim 20 (depends on 19) The method of claim 19, wherein said liquid electrically conducting elastomer material fills said at least one opening and fills up said cavity. ### Claim 21 (depends on 12) The method of claim 12, wherein curing said liquid electrically conducting elastomer material is carried out under a temperature of 80° C. to 220° C. and a pressure of 20 kgf/cm2-200 kgf/cm2 so that said liquid electrically conducting elastomer material is attached to said electrically insulating elastomer. ### Claim 22 A method for using an electrically conductive connecting member, comprising: providing an electrically conductive connecting member, comprising: an electrically insulating elastomer having a cavity and at least one opening and comprising: a first silicone-rubber-based material, comprising 99.99 wt. %-10 wt. % of a first polysiloxane and 0.01 wt. %-10 wt. % of a curing agent based on the total weight of said electrically insulating elastomer, wherein said at least one opening has an area of 50-0.5 mm2; and an electrically conducting elastomer filling said at least one opening, filling up said cavity and comprising: a second silicone-rubber-based material, comprising 94.99 wt. %-10 wt. % of a second polysiloxane material, 0.01 wt. %-10 wt. % of a platinum curing agent and 5 wt. %-80 wt. % of a conductive additive based on the total weight of said electrically conducting elastomer; providing an electronic part set having a gap; and pressing said electrically conductive connecting member into said gap to fill said gap. ### Claim 23 (depends on 22) The method of claim 22, wherein said conductive additive comprises at least one of silver coated glass beads, nickel carbide and carbon nanotubes. ### Claim 24 (depends on 22) The method of claim 22, wherein said electrically conductive connecting member has a water-resistant ability up to 0.1 kgf/cm2. ### Claim 25 (depends on 22) The method of claim 22, wherein said electrically conductive connecting member has 10%˜20% compression set according to ASTM D 395. ### Claim 26 (depends on 22) The method of claim 22, wherein said electrically conducting elastomer which is not surrounded by said electrically insulating elastomer has a single side surface area of 50-0.5 mm2. ### Claim 27 (depends on 22) The method of claim 22, wherein a contact area of said electrically conducting elastomer in contact with said electronic part set is at least 0.5 mm2 when said electrically conductive connecting member fills said gap.