Abstract:
Provided is a multilayer printed wiring board having a terminal portion of high quality. This multilayer printed wiring board has a flexible portion having flexibility, the flexible portion that can be bent when used, a rigid portion formed continuously with the flexible portion, the rigid portion having greater rigidity than the flexible portion, and a terminal portion formed continuously with the flexible portion at an end portion of the flexible portion. The rigid portion includes a rigid layer having insulation properties. The terminal portion includes an insulating layer formed of the same material as that for the rigid layer, the insulating layer having a conductive layer formed on the surface thereof, the conductive layer having a predetermined terminal pattern and serving as a connecting terminal.
Abstract:
A printed circuit board includes a main board part, a reserved board part, a connecting part and a groove. The main board part has a first extending circuit. The reserved board part has a second extending circuit corresponding to the first extending circuit. The connecting part connects the main board part and the reserved board part. The groove is located between the main board part and the reserved board part to prevent the first extending circuit from being electrically connected to the second extending circuit. When the reserved board part needs to be removed, the main board part may be separated from the reserved board part by the groove.
Abstract:
According to an example embodiment of the invention, a configurable printed circuit board (PCB) includes one or more separable portions for supporting modules for interfacing with the PCB. The separable portions extend from an edge portion of a main body of the PCB, and are disposed between the main body of the PCB and a protective portion. A scored portion is provided at a boundary between the main body of the PCB and the separable portions, the separable portions being separable by being broken off from the main body of the PCB at the scored portion. According to an example embodiment of the invention, a method of configuring a PCB having one or more separable portions of the PCB includes securing the PCB and separating the one or more separable portions of the PCB from another portion of the PCB.
Abstract:
A semiconductor device and a fabrication method thereof are provided. An opening having at least one slanted side is formed on a substrate. At least one chip and at least one passive component are mounted on the substrate. An encapsulant having a cutaway corner is formed on the substrate to encapsulate the chip and the passive component, wherein the cutaway corner of the encapsulant is spaced apart from the slanted side of the opening by a predetermined distance. A singulation process is performed to cut the encapsulant to form a package with a chamfer. The package is embedded in a lid to form the semiconductor device, wherein a portion of the substrate located between the slanted side of the opening and the cutaway corner of the encapsulant is exposed from the encapsulant to form an exposed portion. The present invention also provides a carrier for the semiconductor device.
Abstract:
A rigid-flex PCB includes at least one rigid PCB (RPCB) and at least one flexible PCB (FPCB). Each RPCB has a connection section; first and second sections separately extended from two lateral edges of the connection section and having at least one FPCB bonding side each; and a weakening structure formed along each joint of the connection section and the first and second sections. Each FPCB has a bending section corresponding to the connection section on the RPCB; first and second sections separately extended from two lateral edges of the bending section and having at least one RPCB bonding side each corresponding to the FPCB bonding sides of the first and second sections of the RPCB. When a proper pressure is applied against the weakening structures, the RPCB may be easily bent broken at the weakening structures to remove the connection section therefrom.
Abstract:
A groove, and a recess which communicates with the groove, are formed in a substrate. Next, a through hole which communicates with the groove is formed. Thereafter, a wire is formed on an upper surface of the substrate, and an individual electrode is arranged on a lower surface of the substrate. Further, a droplet of an electroconductive liquid is made to land on the recess, and the liquid is filled in the through hole via the groove. Next, the liquid filled in the groove, the recess, and the through hole is heated to harden. Further, the recess and the groove of the substrate are removed by cutting up to an area near the through hole. Accordingly, it is possible to connect electrically the connecting bodies arranged on both surfaces of the substrate by filling an electroconductive material in the through holes easily.
Abstract:
In one embodiment, an inner layer circuit pattern portion and a lead pattern portion are formed, an outer layer base material is prepared, an interlayer adhesive layer to which has been affixed in advance an inner layer separation film is prepared, the interlayer adhesive layer is layered on the outer layer base material, a molded inner layer separation film is formed by molding the inner layer separation film, the molded inner layer separation film is positioned on the lead pattern portion and the outer layer base material is layered on the inner layer base material with interposition of the interlayer adhesive layer, a conductor layer of the outer layer base material is patterned to form an outer layer circuit pattern portion, and the molded inner layer separation film is separated from the inner layer base material to remove the interlayer adhesive layer and the outer layer base material.
Abstract:
An electro-optical module comprising flexible connection cable and aligning capabilities is disclosed. Electro-optical devices may be soldered on a transparent substrate such as glass or a substrate comprising an optical waveguide wherein electrically conductive traces are designed, forming an electro-optical module. When such electro-optical module is inserted and aligned into a printed circuit board, the external part of the substrate, comprising electrically conductive traces and pads, referred to as flex-cable, is bent down toward the mounting plane of the PCB allowing to establish electrical connections between these pads and the PCB. The substrate may be brokenalong a pre-formed groove, and the external part of the substrate can be removed leaving the flex-cable section in place.
Abstract:
Disclosed are a multi-layer PCB and a fabricating method thereof. The multi-layer PCB includes: a core; a plurality of insulation layers and a plurality of conductive pattern layers alternatively stacked on both sides of the core; and a plurality of via holes formed through the core and the insulation layers. The fabricating method may includes the steps of: forming a conductive pattern layer on each of both sides of a core, and forming via holes through the core; attaching a double-stick tape with weak adhesive strength to a portion of each of a upper surface and a lower surface of the core; and forming an insulation layer on each of a upper surface and a lower surface of the core to cover the double-stick tapes, and forming a conductive pattern layer on each of the insulation layers.