摘要:
A memory card connector includes first and second connectors including first and second housings having first and second storage sections, respectively, and first and second contacts which connect with terminals of first and second memory cards removably-inserted into the first and second storage sections, respectively. The first and second connectors are superposed on each other in a direction of thickness thereof. Each first contact includes a first tail which is mountable to a circuit board and positioned on an outer peripheral side of a first side surface of the first housing. The second housing includes a second side surface located at a different position from the first side surface as viewed in the thickness direction. Each second contact includes a second tail which is mountable to the circuit board and positioned on an outer peripheral side of the second side surface.
摘要:
This invention provides a sensor having such a structure that the area in which a sensor electrode comes into contact with a liquid, a mist or a gas containing an analyte has been previously specified. The sensor comprises at least an electroconductive first electrode, an electroconductive second electrode, electroconductive first and second wirings connected to the first and second electrodes, and an insulating part for insulating the first and second wirings from each other and from a liquid, a mist or a gas containing the analyte. The insulating part is formed of an organic material. In the first and second electrodes, at least the surface, which comes into contact with a liquid, a mist or a gas containing the analyte, is formed of a material which is insoluble in a liquid or a mist containing the analyte, or is not attacked by a gas containing the analyte.
摘要:
Disclosed is a manufacturing method of a multi-layer wiring board, which method includes: preparing connection boards, the connection boards having respectively an insulating resin composition layer, a connection conductor formed so as to pass through the insulating resin composition layer and a conductor circuit formed on the insulating resin composition layer and connected to the connection conductor; aligning the connection boards; and laminating the aligned connection boards by heating and pressing, so that the connection conductors, or the connection conductor and the conductor circuit, are conductively connected with each other, and the connection boards are mechanically connected with each other by the insulating resin composition layer. The connection boards are formed by specified processing, including use of a three-layer composite metallic layer.
摘要:
A wiring substrate (1) comprises an insulating base (10) with connection holes (11), buried conductors (12) provided in the connection holes (11) without reaching a rear surface of the insulating base (10), and wiring layers 14 connected to the buried conductors (12). The buried conductors (12) thicken the wiring layers (14), and can form aligning parts (110) on the rear surface of the connection holes (11) to be used for three-dimensional mounting structure. Each wiring layer (14) includes thin terminals (14A), wirings (14B) and thick electrodes (14C). Not only the terminals (14A) and wirings (14B) but also the buried conductors (12) are raised by the same manufacturing process. A semiconductor element (2) is attached to the electrodes (14C) of the wiring substrate (1).
摘要:
In a PC card connector, first and second support shafts are mounted upright on a pin housing, and each provided with a pair of fall-preventive sections at the leading end thereof. A first turn arm is provided with a circular hole, a protrusion, a tongue, a concave section on the rim of the circular hole, and a pair of cutouts that cross the concave section, and the circular hole is fitted on the first support shaft through the cutouts so that the first turn arm can move pivotally. A second turn arm is formed similarly to the first turn arm, and a circular hole thereof is fitted on the second support shaft so that the second turn arm can move pivotally. A drive lever is provided with a circular hole, an engaging section, a coupling hole, a thin concave section formed on the rim of the circular hole, and a pair of cutouts that cross the concave section. The circular hole is fitted on the first support shaft through the cutouts so that the drive lever can move pivotally, and the drive lever and the first turn arm are prevented from falling off by the fall-preventive sections of the first support shaft. The tongues of the turn arms are engaged with the coupling hole of the drive lever, and the engaging section is engaged with a push-rod.
摘要:
A terminal structure for a surface mount electronic part including a terminal holding member formed from a synthetic resin, and external terminal extending from the terminal holding member for soldering to soldering lands of a printed wiring board. Each of the external terminals is held on the terminal holding member such that a straight portion projects laterally from the terminal holding member and is restricted direction (i.e., in width and thickness directions). The outermost tip portion of each external terminal includes an offset portion which is stepped downwards relative to the straight portion of the external terminal includes an offset portion which is stepped downwards relative to the straight portion of the external terminal and which is formed by half punching. The offset portion is provided for soldering to a soldering land of the printed wiring board. A region of the lower surface of the offset portion of each external terminal, which is continuous with a front end surface of the offset portion, is beveled to form an inclined surface such that the thickness of the offset portion decreases toward the front end surface.
摘要:
A pin contact of a connector and a method of fabricating the pin contact which enables a substantial decrease of manufacturing cost, and smooth installation of the pin connector without a change in the pitch of arrangement at the time of press-fitting into a pin housing. A flat metal sheet undergoes blanking and pressing to form a narrow piece including a strip portion of decreased area of a fracture. Then an approximately L-shaped connecting portion is bent at right angles to raise the narrow piece sideways. Thereafter the strip portion of the narrow piece is pressed along the direction of rising, to thereby form an approximately cylindrical contact section. A raised piece at the rear of the contact section is provided with a locking section which faces approximately at right angles with the direction of arrangement.
摘要:
A method of manufacturing a concave connector substrate includes: a step of preparing a guide substrate having a guide/holding region that guides a plate-shaped connector to a connection position and a cut portion; a step of arranging and aligning two wiring substrates, each having wiring lines and through hole connection portions that are electrically connected to the wiring lines, with both surfaces of the guide substrate, and applying an adhesive to a predetermined region of the guide substrate to bond the wiring substrates to the guide substrate; a step of bending a portion of the wiring substrate toward the inside of the cut portion of the guide substrate and bringing the wiring lines disposed in the bent portion into pressure contact with the inside of the cut portion; and a step of removing a section inside the cut portion to form the guide/holding region.
摘要:
There is provided a wiring board insertion connector having only a small restriction on the structure of a wiring board to be inserted to the connector, having high connection reliability such as high durability against repetitive insertion and pullout, and having a relatively simple structure.The wiring board insertion connector includes: a first substrate; a second substrate; a spacer layer that is located between the first substrate and the second substrate; and openings for accommodating a wiring board at predetermined positions in the spacer layer. The first substrate has a wiring layer, a deformable layer, a rigid layer, and a resin layer formed in this order from the side of the spacer layer. The rigid layer has window portions formed at the regions corresponding to the openings, when seen from a thickness direction of the connector. The wiring layer extends at least to the regions corresponding to the window portions when seen from the thickness direction of the connector, the wiring layer protruding toward opening regions at the window portions.
摘要:
A wiring board for electrical tests; having an insulating substrate, wiring of predetermined pattern which is embedded in the insulating substrate, and bump electrodes which are formed on the wiring and which are respectively brought into contact with corresponding electrodes of an article to-be-tested. Thus, even when the electrode pitch of the article to-be-tested such as a semiconductor device has become smaller(for example, less than 0.1 [mm]), the electrodes can be formed so as to cope with the electrical tests of the article.