Abstract:
A pair of holding members, which are displaced from each other along the horizontal plane of a plate face, are formed on each forward end of a plurality of plate type lead terminals fixed to a long base tape. An electronic component body is resiliently held by the paired holding members which are bent in opposite directions in relation to the plate thickness direction. The lead terminals are divided into first and second groups; bending modes for the pairs of holding members provided on the lead terminals belonging to the first group are opposite to those for the pairs of holding members provided on the lead terminals belonging to the second group in relation to the plate thickness direction. Thus, it is possible to suppress distortion of the electronic component with respect to the base tape.
Abstract:
An integrated-circuit package assembly including a lead frame having a number of inwardly extending fingers, the alternate ends of which are formed into an upper row and a lower row to provide a space there between for receipt of the outer edges of a multi-layer printed circuit board (PCB). Vias formed adjacent to the outer edges of the PCB engage with corresponding alternate ends of the inwardly extending fingers when the edges of the multi-layer PCB are inserted in the space provided between the row of fingers in the upper plane and the row of fingers in the lower plane. The ends of the inwardly extending fingers have various lengths which engage via contact pads formed on opposite surfaces of the PCB. A group of the fingers can be pivoted to open the space between the upper and lower row of fingers.
Abstract:
An electronic component includes a substrate having chip parts. First lead terminals and second lead terminals are led out from one end of the substrate toward an outside. The first lead terminal has a holding portion at an intermediate portion. The second lead terminal has a connecting portion for connecting to the substrate and an inserting portion for inserting to the hole of an external circuit board. The connecting portion and the inserting portion of the second lead terminal is connected with an oblique portion. The holding portion of the first lead terminal is in a same plane perpendicular to the surface of the substrate with a boundary portion between the oblique portion and the inserting portion of the second lead terminal.
Abstract:
An integral heat sink-terminal structure for a hybrid circuit assembly includes a heat dissipating plate for bonding to a substrate of the hybrid integrated circuit and terminals for connection to the substrate. The heat dissipating plate and the terminals are unitary with a common frame in the same predetermined positional relationship relative to the substrate before and after they are connected to the substrate. When this structure is used in fabricating a hybrid integrated circuit assembly, the heat dissipating plate is first bonded to the substrate and then the terminals are connected to the substrate.
Abstract:
A solder-bearing lead having a C-clip to resiliently grip the upper and lower surfaces of a substrate. One of the two arms forming the "C" is solder-bearing for mechanical and electrical connection to a conductive area on the substrate. In one embodiment, a polymer plug may be provided on the second arm, the plug having a narrowed neck region for improved retention by the second arm. In another embodiment, the second arm is coated with a non-conductive material, eliminating the need for mechanically retaining a plug or other insulator between the second arm and substrate. The coating on the lead is provided preferably by applying a liquid polymer to the second arm of the lead and hardening the polymer to form a durable, insulating coating.
Abstract:
A solderable lead is fashioned with a C-shaped contact portion along its length. The interior of the C-portion is dimensioned to receive and resiliently contact a substrate at a predetermined contact pad. A layer of solder is provided on the exterior of the C-shaped contact portion and extends around its edge. During heating, the solder migrates to the interior of the C-portion by capillary action to the area between the contact pad of the substrate and the interior of the C-portion. While the solder is liquid, the C-portion maintains engagement with the substrate.
Abstract:
An electrical switching and control device comprising a plurality of heat-emitting electronic components arranged on a hybrid plate, and a plurality of plug-in contacts having surface areas contacting a surface area of the hybrid plate for dissipating heat from the electronic components, and end portions directly connected with connection elements of the hybrid plate.
Abstract:
The present invention provides for an apparatus and a method for housing an integrated circuit device. The integrated circuit device is coupled to a ceramic substrate wherein contacts of the integrated circuit device mate with contacts on the substrate surface. Conductive lines then couple the contacts to the peripheral edges of the substrate where one set of ends of a lead frame assembly mates with the conductors. An encapsulation technique is used to encapsulate the device, such that only the other set of ends of the lead frame assembly extends from the package. In an alternative embodiment, the integrated circuit is hermetically sealed by having a hermetic cover disposed over the integrated circuit. In a second alternative embodiment, the substrate is capable of having disposed upon it multiple integrated circuits. The present invention provides for a significant increase of lead count to die size ratio.
Abstract:
A comb-like array of electrical leads is provided, each having a solder mass and/or a locating structure at a terminal end, the array being in two sets for respective attachment to conducting areas on the top and bottom surfaces of a substrate (such as a printed circuit board), the leads being pivotable either at their stem ends (as in FIGS. 1-2, 21-22 and 31-33) or at an intermediate fulcrum (as in FIGS. 40-41). Resilient structures in the form of resilient bowed portions are formed in the leads, so that upon applying appropriate force to the resilient structures, the sets of leads are separated to accept a substrate therebetween, with the lead terminal ends aligned with respective contact pads on the substrate, and so that upon releasing such force, the leads will tend to return to their initial positions and thereby resiliently clamp the lead structure to the substrate, to be held there during subsequent soldering.
Abstract:
A circuit terminating device for mechanically retaining and electrically connecting a planar substrate such as a thick/thin film circuit to a printed wiring card. The terminating device is characterized by a terminating body having planar sidewalls defining a hollow interconnection post receiving area therebetween. A pair of substrate spring members extend from a sidewall of the terminating body arranged to compressively accept an edge of the substrate retaining and connecting the substrate to the terminating body. Post spring members extending inwardly into the post receiving area engage an interconnection post which extends from the printed wiring card thereby retaining the terminating body to the printed wiring card.