Abstract:
A multi-layer wiring board without a core substrate includes: a multi-layer laminated structure; first terminals provided on a front surface of the multi-layer laminated structure; second terminals provided on a rear surface of the multi-layer laminated structure; a solder resist which covers the rear surface and which has solder resist openings formed at positions corresponding to the second terminals; a reinforcing plate which is made of a non-metal material and which has reinforcing plate openings formed at positions corresponding to the second terminals; and an adhesive layer interposed between the solder resist and the reinforcing plate to fix the reinforcing plate to the solder resist and which includes adhesive layer openings formed at positions corresponding to the second terminals. A diameter of the solder resist openings and a diameter of the reinforcing plate openings are smaller than that of the adhesive layer openings.
Abstract:
The present invention relates to a surface-mount connector for electrically interconnecting a first circuit board and a second circuit board. The surface-mount connector includes a first end part and a second end part. The first end part is bonded onto the first circuit board. The second end part has a sidewall and a receptacle defined within the sidewall for receiving a solder bump therein. The solder bump is partially protruded from the sidewall and bonded onto the second circuit board such that the first circuit board and the second circuit board are electrically connected to each other.
Abstract:
A wiring board has a wiring member, a first reinforcing member and a second reinforcing member. The wiring member has wiring layers and insulating layers which are stacked, and the wiring layers include a first connecting electrode formed on a surface of the wiring member and a second connecting electrode formed on a back surface of the wiring member. A pin is formed on the second connecting electrode. The second reinforcing member is formed by a resin and serves to reinforce the wiring member. The first reinforcing member is formed on the whole back surface of the wiring member except for the pin provided on the second connecting electrode.
Abstract:
Provided is a circuit device, in which circuit elements incorporated are electrically connected to each other via a lead so as to achieve both of the enhanced functionality and miniaturization. In a hybrid integrated circuit device, a first circuit board and a second circuit board are incorporated into a case member in a way that a first circuit board is overlaid with a second circuit board. A first circuit element is arranged on the upper face of the first circuit board and a second circuit element is arranged on the upper face of the second circuit board. Leads provided in the hybrid integrated circuit device include a lead connected only to the first circuit element mounted on the first circuit board, a lead connected only to the second circuit element mounted on the second circuit board, and a lead connected to both of the first circuit element and the second circuit element.
Abstract:
A package substrate 310 incorporating a substrate provided with a conductor layer 5, a conductive connecting pin 100 arranged to establish the electrical connection with a mother board and secured to the surface of the substrate, wherein a pad 16 for securing the conductive connecting pin is provided for the package substrate 310. The pad 16 is covered with an organic resin insulating layer 15 having an opening 18 through which the pad 16 is partially exposed to the outside. The conductive connecting pin 100 is secured to the pad exposed to the outside through the opening with a conductive adhesive agent 17 so that solution of the conductive connecting pin 100 from the substrate occurring, for example when mounting is performed is prevented.
Abstract:
Systems and method for using a direct connect RF pin configuration for an ONU transceiver module to connect directly to an external component. The ONU module communicates with an optical network. The ONU module further includes an RF interface and a direct connect RF pin configuration to communicate using RF signals. In one embodiment, the direct connect RF pin configuration includes two ground pins and a data pin which are spaced apart and directly connected to a PCB of the ONU. The opposing ends of the pins are directly connected to a PCB of an external component, such as an ONU host box. The pins are thus spaced apart such that they do not impede each others' function and available for direct connection to the external component.
Abstract:
An electrically conductive pin comprising a pin stem and a pin head attached to the pin stem. The pin head is adapted to be mounted onto a surface of a microelectronic substrate to support the pin stem. The pin head defines at least one slot therein, the at least one slot being configured to allow gases to escape therethrough from a region at an underside of the pin head.
Abstract:
A wiring board with lead pins having high reliability is provided. When the lead pins are attached to electrode pads, the lead pins are attached to the electrode pads without leaving voids in a conductive agent, and bonding strength of the lead pins are improved. When the wiring board to which the lead pins are attached is reheated, the lead pins are prevented from being inclined or shifted from their normal positions. In the wiring board with lead pins formed by attaching head portions of the lead pins to the electrode pads formed on the wiring board through the conductive agent, the lead pin has notch portions are formed in cut-out shapes in peripheral edge portion of the disk shaped head portion.
Abstract:
In a probe card assembly, a series of probe elements can be arrayed on a silicon space transformer. The silicon space transformer can be fabricated with an array of primary contacts in a very tight pitch, comparable to the pitch of a semiconductor device. One preferred primary contact is a resilient spring contact. Conductive elements in the space transformer are routed to second contacts at a more relaxed pitch. In one preferred embodiment, the second contacts are suitable for directly attaching a ribbon cable, which in turn can be connected to provide selective connection to each primary contact. The silicon space transformer is mounted in a fixture that provides for resilient connection to a wafer or device to be tested. This fixture can be adjusted to planarize the primary contacts with the plane of a support probe card board.
Abstract:
A circuit board assembly includes a first circuit board, at least one surface mount connector, and a second circuit board. The first circuit board has at least a first contact. The surface mount connector is substantially a solid rod and includes a first conducting part coupled to the contact of the first circuit board and a second conducting part having a curvy raised portion at the top surface thereof. The second circuit board has at least a second contact coupled to the second conducting part of the surface mount connector.