Abstract: Disclosed herein are a composite conductive sheet that has rigid conductors movable in a thickness-wise direction of an insulating sheet without falling off from the insulating sheet and is easy to handle by itself, a production process thereof, and an anisotropically conductive connector, an adaptor device and an electrical inspection apparatus for circuit devices, which are each equipped with this composite conductive sheet.

Abstract: An apparatus and method for inspecting a circuit board is described which can well absorb a variation in a height of an electrode to be inspected and can maintain an insulating property between adjacent inspection electrodes even if the electrode to be inspected is arranged at a fine pitch.

Abstract: The present invention provides an inspection apparatus for circuit board for conducting electrical inspection by electrically connecting inspection object electrodes of the circuit board to a plurality of inspection electrodes formed in accordance with a pattern corresponding to the inspection object electrodes through an anisotropically conductive sheet, wherein each of an upper-side board-compressing member and a lower-side board-compressing member respectively arranged on an upper side and lower side of the inspection object circuit board is provided on upper-side base plate and lower-side base plate supported by a plurality of supports of support-infixing plates, and an upper-side supporting point and a lower-side supporting point corresponds to the respective supports on the respective base plates are arranged at positions different from each other on a plane of projection in a thickness-wise direction of the upper-side board-compressing member and lower-side board-compressing member when the inspection

Abstract: Disclosed herein are a composite conductive sheet that has rigid conductors movable in a thickness-wise direction of an insulating sheet without falling off from the insulating sheet and is easy to handle by itself, a production process thereof, and an anisotropically conductive connector, an adaptor device and an electrical inspection apparatus for circuit devices, which are each equipped with this composite conductive sheet.

Abstract: An apparatus and method for inspecting a circuit board is described which can well absorb a variation in a height of an electrode to be inspected and can maintain an insulating property between adjacent inspection electrodes even if the electrode to be inspected is arranged at a fine pitch.

Abstract: An adaptor for inspection of circuit boards includes a wiring board for connection, on a front surface of which a plurality of connecting electrodes are formed correspondingly to electrodes to be inspected, and an anisotropically conductive elastomer sheet detachably arranged on the front surface of the wiring board for connection. The anisotropically conductive elastomer sheet has a surface roughness of 0.5 to 5 ?m on its front surface coming into contact with the circuit board, and a surface roughness of at most 0.3 ?m on its back surface coming into contact with the wiring board for connection. The wiring board for connection has, on its front surface, an insulating layer formed such that each of the connecting electrodes is exposed, and the insulating layer has a surface roughness of at most 0.2 ?m on its front surface.

Abstract: It is an object to provide an apparatus for inspecting a circuit board and a method of inspecting a circuit board which can well absorb a variation in a height of an electrode to be inspected in a circuit board to be inspected and can maintain an insulating property between adjacent inspection electrodes even if the electrode to be inspected is arranged at a fine pitch. An intermediate holding plate 36 is provided in a relay pin unit 31, and a first abutment support position 38A of a first support pin 33 disposed between a first insulating plate 34 and the intermediate holding plate 36 with respect to the intermediate holding plate and a second abutment support position 38B of a second support pin 37 disposed between a second insulating plate 35 and the intermediate holding plate 36 with respect to the intermediate holding plate 36 are placed differently from each other over an intermediate holding plate projecting surface which is projected in a direction of a thickness of the intermediate holding plate 36.

Abstract: The present invention provides an inspection apparatus for circuit board for conducting electrical inspection by electrically connecting inspection object electrodes of the circuit board to a plurality of inspection electrodes formed in accordance with a pattern corresponding to the inspection object electrodes through an anisotropically conductive sheet, wherein each of an upper-side board-compressing member and a lower-side board-compressing member respectively arranged on an upper side and lower side of the inspection object circuit board is provided on upper-side base plate and lower-side base plate supported by a plurality of supports of support-infixing plates, and an upper-side supporting point and a lower-side supporting point corresponds to the respective supports on the respective base plates are arranged at positions different from each other on a plane of projection in a thickness-wise direction of the upper-side board-compressing member and lower-side board-compressing member when the inspection

Abstract: The present invention provides an inspection apparatus for circuit board for conducting electrical inspection by electrically connecting inspection object electrodes of the circuit board to a plurality of inspection electrodes formed in accordance with a pattern corresponding to the inspection object electrodes through an anisotropically conductive sheet, wherein each of an upper-side board-compressing member and a lower-side board-compressing member respectively arranged on an upper side and lower side of the inspection object circuit board is provided on upper-side base plate and lower-side base plate supported by a plurality of supports of support-infixing plates, and an upper-side supporting point and a lower-side supporting point corresponds to the respective supports on the respective base plates are arranged at positions different from each other on a plane of projection in a thickness-wise direction of the upper-side board-compressing member and lower-side board-compressing member when the inspection

Abstract: An adaptor for inspection of circuit boards includes a wiring board for connection, on a front surface of which a plurality of connecting electrodes are formed correspondingly to electrodes to be inspected, and an anisotropically conductive elastomer sheet detachably arranged on the front surface of the wiring board for connection. The anisotropically conductive elastomer sheet has a surface roughness of 0.5 to 5 ?m on its front surface coming into contact with the circuit board, and a surface roughness of at most 0.3 ?m on its back surface coming into contact with the wiring board for connection. The wiring board for connection has, on its front surface, an insulating layer formed such that each of the connecting electrodes is exposed, and the insulating layer has a surface roughness of at most 0.2 ?m on its front surface.

Abstract: Disclosed herein are an inspection apparatus for circuit board and an inspection process for circuit board, by which an anisotropically conductive elastomer sheet is prevented from causing trouble prematurely, long service life is achieved, stable electrical connection is attained to all electrodes to be inspected, and inspection can be conducted with high reliability even when a circuit board has projected electrodes to be inspected arranged at a small pitch, and the projected height of the electrodes to be inspected varies, and a wiring board for connection used in the inspection apparatus for circuit board.

Abstract: Disclosed herein are a connector for measurement of electric resistance and a connector device for measurement of electric resistance, by which necessary electrical connection can be surely achieved even when a circuit board to be inspected is large in area and has a great number of small-sized electrodes to be inspected, and expected measurement of electric resistance can be surely performed with high precision, a production process of the connector device for measurement of electric resistance, and a measuring apparatus and a measuring method of electric resistance for circuit boards. The connector for measurement of electric resistance according to the present invention comprises an insulating substrate and plural sets of connecting electrodes arranged on a front surface of the insulating substrate in accordance with a pattern corresponding to a pattern of a plurality of electrodes to be inspected in a circuit board to be inspected, the electric resistance of which should be measured.

Abstract: The present invention provides an inspection apparatus for circuit board for conducting electrical inspection by electrically connecting inspection object electrodes of the circuit board to a plurality of inspection electrodes formed in accordance with a pattern corresponding to the inspection object electrodes through an anisotropically conductive sheet, wherein each of an upper-side board-compressing member and a lower-side board-compressing member respectively arranged on an upper side and lower side of the inspection object circuit board is provided on upper-side base plate and lower-side base plate supported by a plurality of supports of support-infixing plates, and an upper-side supporting point and a lower-side supporting point corresponds to the respective supports on the respective base plates are arranged at positions different from each other on a plane of projection in a thickness-wise direction of the upper-side board-compressing member and lower-side board-compressing member when the inspection

Abstract: An anisotropically conductive sheet can retain required conductivity over a long time even when used repeatedly, or used under a high -temperature environment. The sheet contains conductive particles exhibiting magnetism in a state oriented in a thickness-wise direction in an elastic polymeric substance having a durometer hardness of 20 to 90. The particles are coated with a lubricant or parting agent. In addition, the sheet has a long service life owing to its high durability and thermal durability.

Abstract: Disclosed is an anisotropically conductive sheet which can retain required conductivity over a long time even when used repeatedly, or used under a high-temperature environment, and has a long service life owing to its high durability and thermal durability, a production process thereof, and applied products thereof.

Abstract: Provided are an electric resistance measuring apparatus for circuit boards, and an electric resistance measuring method using the same. An electric resistance measuring apparatus includes a one-side inspection circuit board having a plurality of connecting electrodes, and layer connector members provided on the inspection circuit board and formed of a conductive elastomer. Each of the layer connector members is brought into simultaneous contact with a plurality of connecting electrodes at one side thereof to be electrically connected thereto, and at the other side thereof, brought into simultaneous contact with a plurality of electrodes to be inspected to be electrically connected thereto. In this measurable state, two connecting electrodes are used for current supply and for voltage measurement, thereby performing measurement of electric resistance on a specified electrode to be inspected.