Abstract:
An interconnect structure a substrate, a contact pad disposed over a surface of the substrate, and an insulative mask disposed over the contact pad. The insulative mask can include an opening that is aligned over and exposes an inner portion of the contact pad. The inner portion of the contact pad includes a compliant layer and a conductive layer that is disposed over the compliant layer. The inner portion of the contact pad has sufficient flexibility to distribute mechanical stress applied to the contact pad and can mitigate damage to the interconnect structure.
Abstract:
An electronic device includes a printed circuit board having a wall deposited directly on a board serving as a base for a printed circuit. As the board is constructed, the wall is deposited on the board for controlling airflow. The wall controls airflow across the board and around components mounted to the board. The wall may be utilized for controlling airflow in combination with a second printed circuit board positioned adjacent to the first printed circuit board. The wall may be utilized for controlling various types of airflow, including airflow from sources including fans and convection, and from geometries including horizontal and vertical mounting geometries. The silicon wall may be utilized for preventing heat airflow generated by heat radiated from one component from impinging upon another component.
Abstract:
An electronic package having a controlled standoff height between a surface mount electronic device and a substrate includes a plurality of polymeric standoffs adhered to at least one of the underside of the surface mount electronic device or an upper surface of the substrate. The polymeric standoffs prevent collapse of the surface mount electronic device during overmolding or encapsulation of the surface mount electronic device.
Abstract:
There is provided a touch panel capable of obtaining a stable connection resistance without requiring fitting accuracy at the time of the connection to an external terminal, and a protective panel for a display window of an electronic device using the same. The analog type touch panel includes a touch side substrate 2 and a non-touch side substrate 3 each having resistive films 2a, 3a provided on opposed inner surfaces thereof. Through-holes 4a, 4b, 4c, 4d formed at the periphery of the non-touch side substrate 3. A connecting part 5 for electrically connecting electrodes of the resistive films 2a, 3a to an external terminal, in which a conductive paste is injected into the through-holes and a rivet 14 is inserted into each of the through-holes from the lower surface side so that a head of the rivet 14 forms flat connecting electrodes 15a, 15b for connection to the external terminal on the lower surface of the non-touch side substrate 3.
Abstract:
An electronic assembly includes a substrate and at least one surface mounted electronic component. The substrate includes a first side and a second side opposite the first side. The first side of the substrate includes a plurality of conductive traces formed thereon. The plurality of conductive traces includes a first conductive trace and a second conductive trace. The electronic component is electrically coupled between the first and second conductive traces. A component body of the electronic component is subject to interaction with a flux, which is utilized during electrical coupling of the electronic component to the first and second conductive traces, to form a current leakage path. The substrate is configured to prevent the formation of the current leakage path.
Abstract:
A cable connector includes a contact assembly including an electrical insulating block part which is configured to incorporate plural signal contacts; and a relay wiring substrate mounted to a back of the contact assembly. The relay wiring substrate includes, on a surface, a contact connecting pad electrically connected to one of the signal contacts, a wiring connecting pad, and a wiring pattern connecting the contact connecting pad and the wiring connecting pad. The relay wiring substrate further includes a ground layer inside the relay wiring substrate. The cable connector further includes a cable connected to the relay wiring substrate by electrically connecting an end of a wiring with the wiring connecting pad. The relay wiring substrate further includes a ground pattern for matching impedance inside the relay wiring substrate.
Abstract:
A method of forming a thin film pattern by placing a functional liquid on a substrate, includes a bank formation step of forming banks in accordance with the thin film pattern on the substrate, a residue processing step of removing residue between the banks, and a material placement step of placing the functional liquid between the banks removed the residue.
Abstract:
An electronic assembly includes a printed circuit aboard, a CPU, an electronic component and a thermal pad attached to the printed circuit board. The CPU and the electronic component are located on a first face of the printed circuit board. The electronic component is located near the CPU. The thermal pad is attached to a second face opposite to the first face of the printed circuit board and located just below the electronic component.
Abstract:
Polymer materials are useful as electrode array bodies for neural stimulation. They are particularly useful for retinal stimulation to create artificial vision, cochlear stimulation to create artificial hearing, and cortical stimulation, and many related purposes. The pressure applied against the retina, or other neural tissue, by an electrode array is critical. Too little pressure causes increased electrical resistance, along with electric field dispersion. Too much pressure may block blood flow. Common flexible circuit fabrication techniques generally require that a flexible circuit electrode array be made flat. Since neural tissue is almost never flat, a flat array will necessarily apply uneven pressure. Further, the edges of a flexible circuit polymer array may be sharp and cut the delicate neural tissue. By applying the right amount of heat to a completed array, a curve can be induced. With a thermoplastic polymer it may be further advantageous to repeatedly heat the flexible circuit in multiple molds, each with a decreasing radius. Further, it is advantageous to add material along the edges. It is further advantageous to provide a fold or twist in the flexible circuit array. Additional material may be added inside and outside the fold to promote a good seal with tissue.
Abstract:
To provide a circuit board with improved electrical features with respect to a synchronization of signals, a circuit board comprises a dielectric substrate and a trace extending along a surface of the dielectric substrate, the trace having a first and second portion, the trace being covered by a first medium at the first portion, wherein the first medium is formed by an encapsulation element of a dielectric material so that the effective dielectric constant of the first medium is different from the effective dielectric constant of a medium extending over the trace at the second portion. Thus, a propagation speed difference can be created, when a signal travels along the first portion of the trace with respect to a signal propagation speed of a signal traveling along the second portion of the trace.