Abstract:
A method of fabricating an electronic device (80), along with the product of that method is disclosed. A flat flexible dielectric substrate (68) is provided with a generally round hole (72) of a given diameter and with a ductile conductive film (70) on the substrate in an area at least about the hole. A generally round terminal pin (74) is provided with a given diameter greater than that of the hole. The difference between the diameter of the pin (74) and the diameter of the hole (72) is on the order of 5% to 50% of the diameter of the hole. At least a portion of the pin (74) is coated with a non-conductive adhesive (82). The pin (74) is inserted into the hole (72) in the substrate (68) such that the non-conductive adhesive (82) is scraped longitudinally from the pin to an area about the hole and the pin, leaving the pin (74) in contact with the conductive film (70).
Abstract:
A method of fabricating an electronic device (80), along with the product of that method is disclosed. A flat flexible dielectric substrate (68) is provided with a generally round hole (72) of a given diameter and with a ductile conductive film (70) on the substrate in an area at least about the hole. A generally round terminal pin (74) is provided with a given diameter greater than that of the hole. The difference between the diameter of the pin (74) and the diameter of the hole (72) is on the order of 5% to 50% of the diameter of the hole. At least a portion of the pin (74) is coated with a non-conductive adhesive (82). The pin (74) is inserted into the hole (72) in the substrate (68) such that the non-conductive adhesive (82) is scraped longitudinally from the pin to an area about the hole and the pin, leaving the pin (74) in contact with the conductive film (70).
Abstract:
An electronic device (52) includes a flat flexible dielectric substrate (56) less than 0.050 inch thick and having a generally round hole (58) of a given diameter (66). A substantially square or polygonal terminal pin (62) is inserted into the round hole (58) in the substrate. The pin has a given cross-dimension (64) between opposite diametral corners thereof greater than the diameter of the round hole (58). The difference between the cross-dimension (64) of the pin (62) and the diameter (66) of the round hole (58) is on the order of 7% to 67% of the diameter of the hole.
Abstract:
A normally closed electrical switch (10) includes a first circuit board (12) having a first switch contact (22) thereon and an aperture (26) therethrough near the first switch contact. A second, flexible circuit board (14) has a second switch contact (28) aligned with the first switch contact of the first circuit board. A spacer sheet (16) separates the first and second circuit boards (12,14) and has an aperture (38) in registry with the aperture in the first circuit board. The switch contacts (22,28) extend toward each other through the aperture (38) in the spacer sheet (16) such that they are in normally closed condition. A movable cover (18) is provided on the first circuit board at least over the aperture therein. An actuator (50) is operatively associated with the cover and extends through the aperture (26) in the first circuit board (12), through the aperture (38) in the spacer sheet (16) and engageable with the second, flexible circuit board (14) for flexing the second circuit board and opening the switch contacts (22,28) in response to movement of the cover.
Abstract:
An electronic device (10) which includes a circuit sheet (12) having a conductive path (14) thereon. An adhesive (18) is deposited on the conductive path (14), the adhesive (18) including a nonconductive base incorporating randomly spaced conducive particles (22). A circuit component (20) is forced through the adhesive (18), the conductive path (14) and the circuit sheet (12) carrying a portion of the adhesive (18) therewith between the circuit component (20) and the conductive path (14). The carried portion (30) of the adhesive (18) is compressed for establishing contact between the conductive particles (22) and thereby conductivity between the circuit component (20) and the conductive path (14) leaving the adhesive (18) other than that portion in a nonconductive state.