Abstract:
A very small computer memory card is densely packed with a large number of flash EEPROM integrated circuit chips. A computer memory system provides for the ability to removably connect one or more of such cards with a common controller circuit that interfaces between the memory cards and a standard computer system bus. Alternately, each card can be provided with the necessary controller circuitry and thus is connectable directly to the computer system bus. An electronic system is described for a memory system and its controller within a single memory card. In a preferred physical arrangement, the cards utilize a main circuit board with a plurality of sub-boards attached thereto on both sides, each sub-board carrying several integrated circuit chips.
Abstract:
A clip for surface-mounting a coupled-dual resonator crystal to a circuit board includes an elongated housing shaped complementary to the housing of the crystal and having an opening along a side for receiving the crystal. A tab spaces first and second shielding portions which overlie the end of the crystal housing. A first shield portion engages the middle ground terminal of the crystal shielding the input and output terminals, while the second shield extends from the first shield to overlie the output terminal, likewise shielding it from the input terminal. Distal portions of the input, output and common terminals, together with pads at the opposite end of the clip, mount the clip mechanically to the surface of a circuit board.
Abstract:
An assembly including a circuit element having a base, and terminals projecting rearwardly from the base, the combination with the element comprising a body defining a forwardly opening recess receiving the base of the element for retention in the recess; the body having a laterally extending rear wall defining through openings for passing the rearwardly projecting terminals; and terminal retention flanges integral with the body and extending rearwardly of the rear wall for retaining the terminals in pre-determined bent conditions, rearwardly of the rear wall.
Abstract:
A rechargeable battery pack according to an exemplary embodiment of the present invention includes a plurality of unit cells (11, 12, 13, 14), connection tabs (30, 40) for electrically connecting the plurality of unit cells, connection plates (50, 70) combined with the connection tabs, and a protective circuit module (21) in which grooves (22, 23) with which the connection plates are combined are formed.
Abstract:
A process for stabilizing an electrical component having a body and electrical leads projecting from the body and received in through-holes defined in a substrate, while avoiding disadvantages associated with dispensing a hot-melt adhesive during assembly of an electrical package, involves steps of providing a circuit substrate having through-holes for receiving the leads of a leaded electrical component, providing an electrical component having a body and leads extending from the body, positioning a preformed hot-melt adhesive on the circuit substrate or on the electrical component, positioning the electrical component on the circuit substrate so that the leads extend into the through-holes and so that the preformed hot-melt adhesive is positioned between and fills the gap between the body of the electrical component and the substrate, and activating and solidifying the hot-melt adhesive to securely adhere the body of the electrical component to the substrate.
Abstract:
According to the configuration and the manufacturing method of forming a moisture proof agent on both surfaces of a circuit substrate after soldering a capacitor connection pin in a vertical direction to the circuit substrate, and electrically connecting the capacitor so as to be in a perpendicular direction to the length direction of the capacitor connection pin at the upper space of the circuit substrate, the possibility of the moisture proof agent attaching to the capacitor is eliminated, the productivity enhances since the moisture proof agent can be easily formed on both surfaces of the circuit substrate, and a capacitor unit of miniaturized and low height configuration is realized since the capacitor is mounted in the horizontal direction in the upper space with respect to the circuit substrate.
Abstract:
The invention relates to a power semiconductor (1) which comprises a housing (2) with a first housing side (5) and an opposite second housing side (6). The first housing side (5) is provided with a cooling body (4) for removing dissipated heat. The second housing side (6) defines an alignment plane (12). The semiconductor (1) is further provided with connecting elements (3) that project from the housing (2) and that are bent in the direction towards the second housing side (6) in such a manner that they project beyond the alignment plane (12) of the second housing side (6). In their terminal regions (11), said connecting elements are adapted to receive SMD components of a printed board (13).
Abstract:
The elctric lamp having a cap (10) of synthetic resin is suitable for use on a printed circuit board (6). The cap (10) has resilient arms (15) extending alongside a plane (8) through the axis (2) of the lamp vessel (1). The holder portion (11) of the cap (3) holding the lamp vessel (1), and the arms (3) can clamp a p.c.b. (6) in between them. Means (19, 21) may be present to keep the lamp fixed in an opening (9) in p.c.b. (6) or at an edge thereof. The lamp requires little space on a p.c.b.