Abstract:
An electronic component module (27i) is provided with a ceramic substrate and a plurality of bonding material applying lands (3). The ceramic substrate has a rear face (27a) that is rectangular. The plurality of bonding material applying lands (3) are arranged on the rear face (27a). The plurality of bonding material applying lands (3) include outer peripheral land rows (4), each of which is arranged in a line along each side of the rear face (27a) with the exception of corner portions (7) of the rear face (27a). The plurality of bonding material applying lands (3) include corner portion inner lands (5), each of which is arranged on the rear face (27a) at a position that is shifted inwardly in a substantially diagonal direction from the corner portion (7) and is adjacent to the bonding material applying lands (3) closest to the corner portion (7) at ends of the outer peripheral land rows (4) that are arranged in lines along two sides that are connected by the corner portion (7).
Abstract:
A circuit board (10; 200) for a marking material receptacle (40, 48), comprising a storage device (30) for storing data relating to a marking material for print, a plurality of terminals (21-27; 201-207) arranged on said circuit board (10; 200), said terminals comprising a power supply terminal (22; 202) and being arranged in a plurality of rows, characterized by two ground terminals (24, 27; 204, 207) arranged for allowing a printing device (100) to determine if said marking material receptacle has been installed correctly, where said ground terminals (24, 27; 204, 207) are located at the outermost ends of a row that is different than the row that contains said power supply terminal (22; 202), and where said ground terminals (24, 27; 202, 204) are not the terminals in closest proximity to said power supply terminal (22; 202).
Abstract:
A repairable flex circuit (1), comprising: a generally flexible, electrically insulative substrate (2) having a first edge (3) thereof, and a plurality of electrically conductive circuit traces (5) arranged on the substrate. Each circuit trace has an end thereof terminating at a first connector element (8) proximate the first edge (3), and at least one second connector element (13) spaced apart from the first connector element, with each of said first and second connector elements being a plated through hole, a plated blind via, or a solder pad.
Abstract:
A printed circuit board assembly includes two-dimensional arrays of connectors (14,16) to provide significantly higher data transfer rates than typical one-dimensionally arranged connectors, without sacrificing board space. The assembly includes a plurality of connection pads (14,16) on each printed circuit board (10,12). A layer of anisotropically conducting material (26) is placed between the connection pads and the boards are held together by fastening screws (28).
Abstract:
An insulation displacement contact (10) comprises first and second contact portions each of which comprises a cantilevered split beam (19). The upper split beam, which receives insulated wires, comprises a pair of tynes (20,22) which are folded about the axis of a slot (25) separating the tynes such that the internal angle between the tynes is approximately 90°. The width of the tynes is larger than that of prior art devices resulting in increased stiffness and the length of the tynes is sufficiently long to receive two wires therebetween. The contacts (10) are mounted in a housing which includes a plurality of teeth (90) provided with means for retaining lugs (32,34) on the end of the tynes to ensure bowed opening of the tynes on insertion of a wire. The contacts are arranged along the central axis (72) of the housing such that the folded tynes of alternate contacts extend on opposite sides of the central axis.
Abstract:
An insulation displacement contact (10) comprises first and second contact portions each of which comprises a cantilevered split beam (19). The upper split beam, which receives insulated wires, comprises a pair of tynes (20,22) which are folded about the axis of a slot (25) separating the tynes such that the internal angle between the tynes is approximately 90°. The width of the tynes is larger than that of prior art devices resulting in increased stiffness and the length of the tynes is sufficiently long to receive two wires therebetween. The contacts (10) are mounted in a housing which includes a plurality of teeth (90) provided with means for retaining lugs (32,34) on the end of the tynes to ensure bowed opening of the tynes on insertion of a wire. The contacts are arranged along the central axis (72) of the housing such that the folded tynes of alternate contacts extend on opposite sides of the central axis.