Anisotropic conductive connector and circuit-device electrical-inspection device

• US 7,255,579 B2
• Filed: 04/05/2004
• Issued: 08/14/2007
• Est. Priority Date: 04/16/2003
• Status: Active Grant

• Current Assignee: ISC Incorporated (Svenska Cellulosa AB)
• Original Assignee: JSR Corporation
• Inventors: Sato, Katsumi, Inoue, Kazuo
• Primary Examiner(s): Patel; Tulsidas C.
• Assistant Examiner(s): Imas; Vladimir
• Application Number:
  US10/552,995
• Publication Number:
  US 20060199405A1
• Time in Patent Office: 1,226 Days
• Field of Search: 439/91, 439/66, 439/63, 439/591
• US Class Current: 439/91
• CPC Class Codes: G01R 1/0735 arranged on a flexible frame or film
• CPC Class Codes: H01L 23/49827 Via connections through the substrates, e.g. pins going through the substrate, coaxial cables H01L23/49822, H01L23/49833, H01L23/4985, H01L23/49861 take precedence
• CPC Class Codes: H01L 23/49838 Geometry or layout
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H01R 13/2414 conductive elastomers

Abstract

An anisotropically conductive connector, by which expected electrical inspection can be conducted even to a circuit device having a clock frequency of, for example, at least 1 GHz, and an electrical inspection apparatus for circuit devices, which is equipped with this connector. The anisotropically conductive connector includes an elastic anisotropically conductive film having a plurality of conductive parts for connection arranged in accordance with a pattern corresponding to electrodes to be connected and extending in a thickness-wise direction of the film and an insulating part mutually insulating these conductive parts for connection, wherein conductive parts for high-frequency shielding extending in the thickness-wise direction are formed in the elastic anisotropically conductive film. The electrical inspection apparatus for circuit devices includes the above anisotropically conductive connector.

Claims

1. An anisotropically conductive connector comprising an elastic anisotropically conductive film, comprising:

a plurality of conductive parts for connection arranged in a pattern corresponding to a pattern of electrodes to be connected and extending in a thickness-wise direction of the film;

an insulating part mutually insulating the plurality of conductive parts for connection; and

a plurality of cylindrical conductive parts for high-frequency shielding arranged to surround each of the conductive parts for connection and extending in the thickness-wise direction in the elastic anisotropically conductive film, wherein

the elastic anisotropically conductive film is composed of an elastic polymeric substance,

in each of the conductive parts for connection and each of the conductive parts for high-frequency shielding, conductive particles are contained in the elastic polymeric substance in a state oriented so as to align in the thickness-wise direction of the film, and

the insulating part is substantially free of conductive particles.

6. The anisotropically conductive connector according to any one of claims 1 or 3, wherein each cylindrical conductive part for high-frequency shielding is arranged concentrically with a respective conductive part for connection to surround the respective conductive part for connection.

8. The anisotropically conductive connector according to any one of claims 1 or 2, wherein the conductive parts for high-frequency shielding are connected to a ground.

10. An electrical inspection apparatus for circuit devices, which comprises the anisotropically conductive connector according to any one of claims 1, 2, 3, 4, 5, or 7.

11. An electrical inspection apparatus for circuit devices, which comprises a circuit board for inspection, on which inspection electrodes have been formed in a pattern corresponding to a pattern of electrodes to be inspected of a circuit device, which is an object of inspection, and the anisotropically conductive connector according to claim 8, which is arranged on the circuit board for inspection,

wherein in the circuit board for inspection, grounding electrodes connected to a ground are formed in a pattern corresponding to a pattern of the conductive parts for high-frequency shielding in the anisotropically conductive connector.

13. An electrical inspection apparatus for circuit devices, which comprises the anisotropically conductive connector according to claim 8.

2. An anisotropically conductive connector comprising an elastic anisotropically conductive film, comprising:

a plurality of conductive parts for connection arranged in a pattern corresponding to a pattern of electrodes to be connected and extending in a thickness-wise direction of the film;

an insulating part mutually insulating the plurality of conductive parts for connection; and

a cylindrical conductive part for high-frequency shielding arranged to surround a group of conductive parts in the plurality of the conductive parts for connection and extending in the thickness-wise direction in the elastic anisotropically conductive film, wherein

the elastic anisotropically conductive film is composed of an elastic polymeric substance;

in each of the conductive parts for connection and each of the conductive parts for high-frequency shielding, conductive particles are contained in the elastic polymeric substance in a state oriented so as to align in the thickness-wise direction of the film, and

the insulating part is substantially free of conductive particles.

3. An anisotropically conductive connector comprising:

a frame plate having conductivity and a plurality of openings in a pattern corresponding to a pattern of electrodes to be connected; and

an elastic anisotropically conductive film composed of a plurality of functional parts arranged in the respective openings of the frame plate and composed of a conductive part for connection extending in a thickness-wise direction of the film and an insulating part formed integrally with the periphery of the conductive part, and a part to be supported, which is formed integrally with the peripheries of the functional parts and fixed to the frame plate by being laminated on the frame plate,

wherein a plurality of cylindrical conductive parts for high-frequency shielding are arranged to surround each of the conductive parts for connection, electrically connected to the frame plate and extending in the thickness-wise direction in the part to be supported in the elastic anisotropically conductive film, wherein

the elastic anisotropically conductive film is composed of an elastic polymeric substance;

in each of the conductive parts for connection and each of the conductive parts for high-frequency shielding, conductive particles are contained in the elastic polymeric substance in a state oriented so as to align in the thickness-wise direction of the film, and

the insulating part is substantially free of conductive particles.

9. The anisotropically conductive connector according to any one of claims 3 or 5, wherein the frame plate is connected to a ground.

12. An electrical inspection apparatus for circuit devices, which comprises a circuit board for inspection, on which inspection electrodes have been formed in a pattern corresponding to a pattern of electrodes to be inspected of a circuit device, which is an object of inspection, and the anisotropically conductive connector according to claim 9, which is arranged on the circuit board for inspection,

wherein the frame plate in the anisotropically conductive connector is connected to a ground.

14. An electrical inspection apparatus for circuit devices, which comprises the anisotropically conductive connector according to claim 9.

4. An anisotropically conductive connector comprising:

a frame plate having conductivity and an opening extending through in a thickness-wise direction; and

an elastic anisotropically conductive film arranged in the opening of the frame plate and composed of a functional part having a plurality of conductive parts for connection arranged in a pattern corresponding to a pattern of electrodes to be connected and extending in the thickness-wise direction and an insulating part mutually insulating the conductive parts for connection, and a part to be supported, which is formed integrally with the periphery of the functional part and fixed to the frame plate by being laminated on the frame plate,

wherein a cylindrical conductive part for high-frequency shielding is arranged to surround a group of conductive parts in the plurality of the conductive parts for connection, electrically connected to the frame plate and extending in the thickness-wise direction in the part to be supported in the elastic anisotropically conductive film, wherein

the elastic anisotropically conductive film is composed of an elastic polymeric substance;

in each of the conductive parts for connection and each of the conductive parts for high-frequency shielding, conductive particles are contained in the elastic polymeric substance in a state oriented so as to align in the thickness-wise direction of the film, and

the insulating part is substantially free of conductive particles.

7. The anisotropically conductive connector according to claim 4, wherein one or more conductive parts for non-connection are formed in addition to the conductive parts for connection in the elastic anisotropically conductive film, and the conductive parts for high-frequency shielding are arranged so as to surround a group of conductive parts including the plurality of the conductive parts for connection and one or more conductive parts for non-connection.

5. An anisotropically conductive connector comprising:

a frame plate having conductivity and a plurality of openings in a pattern corresponding to a pattern of electrodes to be connected; and

an elastic anisotropically conductive film composed of a plurality of functional parts arranged in the respective openings of the frame plate and composed of a conductive part for connection extending in a thickness wise direction of the film and an insulating part formed integrally with the periphery of the conductive part, and a part to be supported, which is formed integrally with the peripheries of the functional parts and fixed to the frame plate by being laminated on the frame plate,

wherein a cylindrical conductive part for high-frequency shielding is arranged to surround a group of conductive parts in the plurality of the conductive parts for connection, electrically connected to the frame plate and extending in the thickness-wise direction in the part to be supported in the elastic anisotropically conductive film, wherein

the elastic anisotropically conductive film is composed of an elastic polymeric substance;

in each of the conductive parts for connection and each of the conductive parts for high-frequency shielding, conductive particles are contained in the elastic polymeric substance in a state oriented so as to align in the thickness-wise direction of the film, and

the insulating part is substantially free of conductive particles.