Abstract: An embodiment of an electrical connecting apparatus comprises an electrical insulating plate, an elastic plate made of an electrical insulating material arranged on the electrical insulating plate, a sheet-like conductive plate arranged on the elastic plate, and first and second contacts. The conductive plate comprises a hole area having at least one first hole portion allowing the probe tip portion of the first contact to abut to the conductive plate and a plurality of second hole portions not allowing the probe tip portions of the second contacts to abut thereon regardless of whether or not overdriving acts on the contacts.

Abstract: An embodiment of an electrical connecting apparatus comprises an electrical insulating plate, an elastic plate made of an electrical insulating material arranged on the electrical insulating plate, a sheet-like conductive plate arranged on the elastic plate, and first and second contacts. The conductive plate comprises a hole area having at least one first hole portion allowing the probe tip portion of the first contact to abut to the conductive plate and a plurality of second hole portions not allowing the probe tip portions of the second contacts to abut thereon regardless of whether or not overdriving acts on the contacts.

Abstract: The electrical connecting apparatus disclosed herein includes a frame member having a recess for receiving a device under test provided with a plurality of electrodes, a plurality of contacts provided in correspondence to the electrodes, a plurality of slots formed in the bottom portion of the recess of the frame member and arranged parallel to each other so as to receive the contacts such that the tip of each contact can abut the corresponding electrode, an elastic member disposed across the slots over the bottom portion within the recess to elastically hold the contacts, and a cap member mounted on the frame member and sandwiching the elastic body together with the frame member.

Abstract: The electrical connecting apparatus disclosed herein includes a frame member having a recess for receiving a device under test provided with a plurality of electrodes, a plurality of contacts provided in correspondence to the electrodes, a plurality of slots formed in the bottom portion of the recess of the frame member and arranged parallel to each other so as to receive the contacts such that the tip of each contact can abut the corresponding electrode, an elastic member disposed across the slots over the bottom portion within the recess to elastically hold the contacts, and a cap member mounted on the frame member and sandwiching the elastic body together with the frame member.

Abstract: A contact block includes a contact having a pair of contact pieces spaced apart, and an electrically insulating combining block for combining the contact pieces. Each contact piece is provided with a horizontal U-shaped or a horizontal V-shaped intermediate region having a folded end portion and a pair of arm portions vertically spaced apart from the folded end portion; a first tip region extending downward from the tip portion of one of the arm portions; and a second tip region extending upward from the tip portion of the other arm portion. The folded end portions of both contact pieces are buried within the combining block and the remaining parts of both contact pieces are projected from the combining block. Thereby, in a state of being assembled into the electrical connecting apparatus, adjoining contacts are positioned by the combining block, and contacts can be exchanged by exchanging contact blocks.

Abstract: A contact includes: a first and a second conductive contact pieces and at least one sheet-like electrical insulator such as polyimide. Each contact piece has a sheet-like body portion having a base portion, an elongate portion extending from the base portion, and a conductive contact portion formed in the base portion; and a terminal contact portion formed in the elongate portion. Both base potions are made to confront each other in their thickness direction with an electrical insulator interposed, such that one of the terminal contact portions, without being in electrical contact with the second contact piece, extends toward the second base portion, while the other terminal contact portion, without being in electrical contact with the first contact piece, extends toward the first base portion.

Abstract: A contact block includes a contact having a pair of contact pieces spaced apart, and an electrically insulating combining block for combining the contact pieces. Each contact piece is provided with a horizontal U-shaped or a horizontal V-shaped intermediate region having a folded end portion and a pair of arm portions vertically spaced apart from the folded end portion; a first tip region extending downward from the tip portion of one of the arm portions; and a second tip region extending upward from the tip portion of the other arm portion. The folded end portions of both contact pieces are buried within the combining block and the remaining parts of both contact pieces are projected from the combining block. Thereby, in a state of being assembled into the electrical connecting apparatus, adjoining contacts are positioned by the combining block, and contacts can be exchanged by exchanging contact blocks.

Abstract: A contact includes: a first and a second conductive contact pieces and at least one sheet-like electrical insulator such as polyimide. Each contact piece has a sheet-like body portion having a base portion, an elongate portion extending from the base portion, and a conductive contact portion formed in the base portion; and a terminal contact portion formed in the elongate portion. Both base potions are made to confront each other in their thickness direction with an electrical insulator interposed, such that one of the terminal contact portions, without being in electrical contact with the second contact piece, extends toward the second base portion, while the other terminal contact portion, without being in electrical contact with the first contact piece, extends toward the first base portion.