Abstract:
A stretchable wiring board includes: a stretchable base; at least one stretchable wiring provided on the stretchable base; and a poorly stretchable member provided so as to overlap at least part of the stretchable wiring in a thickness direction looking at the stretchable base in planar view. The poorly stretchable member suppresses change in a resistance value of the stretchable wiring associated with stretching deformation of the stretchable base. As a result, stable operability can be secured without affecting an operating voltage of an electronic component.
Abstract:
Embodiments of the present disclosure describe a wavy interconnect for bendable and stretchable devices and associated techniques and configurations. In one embodiment, an interconnect assembly includes a flexible substrate defining a plane and a wavy interconnect disposed on the flexible substrate and configured to route electrical signals of an integrated circuit (IC) device in a first direction that is coplanar with the plane, the wavy interconnect having a wavy profile from a second direction that is perpendicular to the first direction and coplanar with the plane. Other embodiments may be described and/or claimed.
Abstract:
The invention relates to a contact-distance transformer (4) of an electrical testing device (1) for testing an electrical test item (7), in particular wafers (8), said contact-distance transformer (4) being suitable for reducing the distance between electrical contacts (16, 19) arranged next to one another, and having a non-electrically conductive carrier structure (28) occupying a first side (17) and a second side (18), wherein first electrical contacts (16) are arranged on the first side (17) at a contact distance (a) to one another, and second electrical contacts (19) are arranged on the second side (18) at a smaller contact distance (b) to one another in relation to the first contacts (16) of the first side (17), wherein the first contacts (16) are connected to the second contacts (19) via electrical connections (20) which are passing through the carrier structure (28) and/or which are arranged on the carrier structure (28). According to the invention, both the carrier structure (28) and the electrical connections (20) are formed as 3D-printed components (27). The invention also relates to an electrical testing device (1), and a method for producing a contact-distance transformer (4).
Abstract:
A method of manufacturing a printed circuit board or a sub-assembly thereof comprises the following steps: - providing at least two elements (1, 3) of insulating material - coupling or connecting the elements (1, 3) of insulating material on at least one adjacent side surface - covering the elements (1, 3) of insulating material with a layer (4) of conductive material on at least one surface - building up at least one further layer (5, 6, 7, 8) of the printed circuit board (10) at least partly on the elements (1, 3) of insulating material. Furthermore a printed circuit board (10) or sub-assembly thereof is provided.
Abstract:
A method of forming a buried die module includes providing an initial laminate flex layer 18 and forming a die opening 28 through the initial laminate flex layer. A first uncut laminate flex layer 32 is secured to the first surface 14 of the initial laminate flex layer 18 by way of an adhesive material and a die 30 is positioned within the die opening of the initial laminate flex layer and onto the adhesive material. A second uncut laminate flex layer 38 is secured to the second surface 26 of the initial laminate flex layer 18 by way of an adhesive material and the adhesive material between the first uncut laminate flex layer 32 and the initial laminate flex layer and between the second uncut laminate flex layer 38 and the initial laminate flex layer 18 is cured. A plurality of vias 20 and metal interconnects 22 are formed in and on the first and second uncut laminate flex layers 32,38 with each of the metal interconnects extending through a respective via and being directly metalized to a metal interconnect on the initial laminate flex layer 18 or a die pad on the die 30.
Abstract:
The invention relates to a manufacturing method for a printed circuit board (PCB) with an insulated micro radiator. Comparing with the manufacturing method for a conventional PCB, the method adds a step that: one or more one high thermal conductivity insulated micro radiators in cylindrical shape is embedded into the PCB, and heating component is provided on the top copper pattern of one or a number of insulated micro radiators. The invention combines the high thermal conductivity insulated micro radiator with a conventional rigid PCB. The PCB has the advantages of high thermal conductivity and heat transfer stability of the insulated micro radiator as well as the advantages of flexible routing and reliable electrical connection of the conventional PCB. Moreover, it can transmit the heat generated by the heating components such as LED components and so on out of the PCB during operation, timely and effectively. Therefore, it is an ideal carrier board for the heating component and an array thereof. The manufacturing method has the advantages of simple, convenience for operation and high productivity.
Abstract:
A method of preparing a non-ferrous metal substrate for plating includes providing an anodized layer on an aluminum substrate and electrically isolating the anodized layer from the non-ferrous metal substrate by applying an electrically non-conductive micro-filler to the anodized layer to form a filled region of the anodized layer electrically isolating the anodized layer from the non-ferrous metal substrate.
Abstract:
A chip capacitor 20 is provided in a core substrate 30 of a printed circuit board 10. This makes it possible to shorten a distance between an IC chip 90 and the chip capacitor 20 and to reduce loop inductance. Since the core substrate 30 is constituted by providing a first resin substrate 30a, a second resin substrate 30b and a third resin substrate 30c in a multilayer manner, the core substrate 30 can obtain sufficient strength.