Abstract:
A flip chip interconnect of a die on a substrate is made by mating the interconnect bump onto a narrow interconnect pad on a lead or trace, rather than onto a capture pad. The width of the narrow interconnect pad is less than a base diameter of bumps on the die to be attached. Also, a flip chip package includes a die having solder bumps attached to interconnect pads in an active surface, and a substrate having narrow interconnect pads on electrically conductive traces in a die attach surface, in which the bumps are mated onto the narrow pads on the traces.
Abstract:
A wired-circuit-board assembly sheet includes a plurality of wired circuit boards and a supporting sheet for supporting the wired circuit boards in an aligned state. Each of the wired circuit boards includes a distinguishing mark forming portion to be formed with a distinguishing mark for distinguishing between defectiveness and non-defectiveness of the wired circuit board. The distinguishing mark forming portion is divided by a weir portion for preventing the distinguishing mark from flowing out from the distinguishing mark forming portion.
Abstract:
A wiring substrate includes a plurality of connection pads, and a protection insulating layer in which opening portion exposing said plurality of connection pads collectively is provided, wherein a notched opening portion is provided to a sidewall of the opening portion of the protection insulating layer in area between said plurality of connection pads. When a semiconductor chip is flip-chip connected to the connection pads by the prior sealing technology, a void occurring in the sealing resin is trapped in the notched opening portion.
Abstract:
In the case of a multilayered printed circuit board (20), more particularly a flame-resistant and/or smoke-suppressing multilayered printed circuit board, consisting of a plurality of interconnected layers (2, 3, 12, 13) composed of incombustible, conductive material and layers (1, 11) composed of non-conductive material, two layers (2, 3, 12) composed of a conductive material in each case being separated by at least one layer (1, 11) composed of a non-conductive material, it is provided that the printed circuit board (20) contains in its interior at least two layers (2, 3, 12) having a surface proportion of at least 50%, more particularly at last 70%, composed of the incombustible, conductive material, as a result of which a multilayered printed circuit board (20) having improved flame resistance and reduced smoke evolution can be made available.
Abstract:
In a flexible printed circuit board and a liquid crystal display, the liquid crystal display includes a flexible printed circuit board electrically connecting a liquid crystal display panel that displays an image and a driving circuit board that outputs a driving signal. The flexible printed circuit board includes a base film, an insulating layer and a signal line disposed between the base film and the insulating layer. The base film or the insulating layer includes an opening formed therethrough. Also, the flexible printed circuit board includes a deformation prevention member by cutting-away an end thereof so as to prevent heat deformation of the flexible printed circuit board. Thus, the liquid crystal display may have reduced size and improved assembly efficiency.
Abstract:
A substrate board and a manufacturing method of a package structure are provided. The substrate board includes a first surface, a die-attaching area, a cutting area, a plurality of first pads and a first solder mask. The die-attaching area for attaching a die is located on the first surface. The first pads are disposed on the first surface. The first solder mask is partially disposed on the first surface to expose part of the cutting area and the first pads. The first solder mask is divided into a first inner area and a first outer area via the cutting area. The die-attaching area and the first pads are located in the first inner area. Wherein, part of the first mask is located on the cutting area for connecting the first inner area and the first outer area.
Abstract:
A technique which prevents cracking in a solder resist layer covering an interposer surface between external coupling terminals of an interconnection substrate, thereby reducing the possibility of interconnect wire disconnection resulting from such cracking. A semiconductor package is mounted over an interconnection substrate. An underfill resin layer seals the space between the semiconductor package and the interconnection substrate. External coupling terminals, interconnect wires and a solder resist layer are formed over the surface of an interposer (constituent of the semiconductor package) where the semiconductor chip is not mounted. In an area where an interconnect wire passing between two neighboring ones of the external coupling terminals intersects with a line connecting the centers of the two external coupling terminals, the interconnect wire is not covered by the solder resist layer.
Abstract:
Provided are: a light emitting module which has an improved heat-dissipating property and whose reflectance reduction is prevented. The light emitting module mainly includes: a metal substrate; a conductive pattern formed on the upper surface of the metal substrate; and a light emitting element disposed on the upper surface of the metal substrate and electrically connected to the conductive pattern. Furthermore, in the light emitting module, an insulating layer is removed in a region where the conductive pattern is not formed, but is left unremoved in a region right below (or covered with) the conductive pattern. In other words, in the region where the conductive pattern is not formed, the upper surface of the metal substrate is not covered with the conductive pattern, and a metal material constituting the metal substrate is exposed.
Abstract:
The present invention is directed toward a detector structure, detector arrays, and a method of detecting incident radiation. The present invention comprises several embodiments that provide for reduced radiation damage susceptibility, decreased affects of crosstalk, reduced dark current (current leakage) and increased flexibility in application. In one embodiment, a photodiode array comprises a substrate having at least a front side and a back side, a plurality of diode elements integrally formed in the substrate forming the array, wherein each diode element has a p+ fishbone pattern on the front side, and wherein the p+ fishbone pattern substantially reduces capacitance and crosstalk between adjacent photodiodes, a plurality of front surface cathode and anode contacts, and wire interconnects between diode elements made through a plurality of back surface contacts.
Abstract:
An electrode connection structure including a first circuit component including a resin plate, a barrier film stacked on a surface of the resin plate, a circuit section formed on the barrier film and a first electrode provided on the surface of the resin plate on which the barrier film is stacked, and a second circuit component arranged to face the first circuit component and having a second electrode facing the first electrode, wherein the first and second electrodes are electrically connected via pressure applied thereto in the directions approaching each other and a portion of the barrier film surrounding the first electrode is at least partially removed from the surface of the resin plate.