Abstract:
Fine feature formation techniques for printed circuit boards are described. In one embodiment, for example, a method may comprise fabricating a conductive structure 306 on a low density interconnect (LDI) printed circuit board (PCB) 150 according to an LDI fabrication process and forming one or more fine conductive features on the LDI PCB by performing a fine feature formation (FFF) process, the FFF process to comprise removing conductive material of the conductive structure along an excision path to form a fine gap region 308 within the conductive structure. Other embodiments are described and claimed.
Abstract:
A flexible printed circuit board (100) comprises a printed conductor (101) and at least one component (102) forming an interface region (103) with said flexible printed circuit board. The conductor (101) elongates through the interface region (103), wherein stiffness of said component (101) is greater than stiffness of the flexible printed circuit board (100) thereby causing mechanical discontinuity point on said conductor at the interface region (103). The flexible printed circuit board (100) is configured (105) to stiffen in the direction (104) of the conductor (101) towards said component (102) at least in the interface region (103) in order to eliminate or minimize said mechanical discontinuity point.
Abstract:
An integrated device package includes a base portion, a redistribution portion, a first die and a second die. The base portion includes a photo imageable layer, a bridge that is at least partially embedded in the photo imageable layer, and a set of vias in the photo imageable layer. The bridge includes a first set of interconnects comprising a first density. The set of vias includes a second density. The redistribution portion is coupled to the base portion. The redistribution portion includes at least one dielectric layer, a second set of interconnects coupled to the first set of interconnects, and a third set of interconnects coupled to the set of vias. The first die is coupled to the redistribution portion. The second die is coupled to the redistribution portion, where the first die and the second die are coupled to each other through an electrical path that includes the bridge.
Abstract:
A multi board module is manufactured by forming (100) a first multilayer circuit board so as to have an aperture, providing (110) a second multilayer circuit board (50) to fit within at least part of the aperture, and inserting (120) the second multilayer circuit board into the aperture so that surfaces of the boards are coplanar. Circuit components are mounted (130) on the coplanar surfaces and in the same step, a passive component is mounted between the respective conductors across a perimeter of the aperture to form one or more electrical connections between the boards. This can avoid the need for a separate manufacturing step for the electrical connections. A lug and recess can be provided to enable the insertion to be a press fit. The second board can be thinner so that its backside is recessed and thus provide a better foundation for a glued joint.
Abstract:
The invention regards an audio processing device with at least one encapsulated electronic component mounted and electrically connected to electric leads in a mounting substrate. Further electric components are mounted for connection with the encapsulated electronic component through the substrate and the encapsulation material is moulded onto the substrate. According to the invention at least one metal layer is deposited on a surface part of the encapsulation material. The invention further regards a method for producing an amplifier for an audio device whereby at least one encapsulated electronic component is mounted on, and electrically connected to a PCB and where the encapsulation material is provided to protect the electronic component wherein further a metal layer is generated at least on a surface area of the encapsulation material.
Abstract:
A high density region for a low density circuit. At least a first liquid dielectric layer is deposited on the first surface of a first circuitry layer. The dielectric layer is imaged to create plurality of first recesses. Surfaces of the first recesses are plated electro-lessly with a conductive material to form first conductive structures electrically coupled to, and extending generally perpendicular to, the first circuitry layer. A plating resist is applied. A conductive material is electro-plated to the first conductive structure to substantially fill the first recesses, and the plating resist is removed.
Abstract:
Die vorliegende Erfindung betrifft ein Prepreg (21) zur Verwendung bei der Herstellung von Leiterplatten, das ein oder mehrere Abstandshalterelemente (22, 24) umfasst.