Abstract:
Disclosed is a tape carrier package for electrically connecting LCD panel with source and gate driver PCBs and an LCD module to which the tape carrier package is applied. The tape carrier package includes: a first flexible film made of insulator; a conductive pattern formed on the first flexible film and having a plurality of input/output leads each having an input terminal and an output terminal; a semiconductor chip having a plurality of input/output terminals electrically connected with the input/output leads of the conductive pattern; and a second film made of insulator, the second film coating the conductive input/output leads such that the input/output leads are exposed by a selected length from respective ends thereof, wherein at least one selected lead of the input/output leads disposed at at least one sided end of the tape carrier package comprises a first portion and a second portion which is wider than the first portion, the second portion extending from a first selected position of the exposed leads to a second selected position of the second film passing over a boundary between the second film and the exposed leads.
Abstract:
Filled composite compositions can be used as encapsulants, underfill materials, and potting materials in electronic and optical packages that are subjected to a wide temperature range. The composites contain a matrix and a filler composition. In a preferred embodiment, the matrix is an organic material. The filler composition contains particles of a material that have a negative coefficient of thermal expansion. The filler composition contains particles having a wide range of sizes. Furthermore, the particles exhibit a non-normal, for example, log normal or power-law, particle distribution. The non-normal size distribution of the particles enables the filler composition to be formulated at high levels into organic matrices, resulting in composites that have very low coefficient of thermal expansion to match those of the semiconductor materials in the electronic package or optical components in an optical assembly.
Abstract:
A semiconductor device is disclosed, which comprises a package board in which pads are formed on the upper side of a wiring board, a semiconductor chip in which first bumps are formed on the device-forming surface of the semiconductor chip, second bumps are formed on the back surface of the semiconductor chip, and the semiconductor chip is flipchip-connected to the package board, a capacitor-mounted board in which capacitors are mounted on the upper surface of the capacitor-mounted board, pads are formed on the back surface of the capacitor-mounted board, and the capacitor-mounted board is flipchip-connected to the semiconductor chip, an adhesive resin filled between the semiconductor chip and the package substrate and between the semiconductor chip and the capacitor-mounting board, resin package formed on the package substrate, and a ball grid array comprising a plurality of external terminal balls formed on the back surface of the package substrate.
Abstract:
Disclosed are a ceramic multilayer substrate in which internal connection parts formed in the internal patterns are broad enough to surround the external terminal, and a method for manufacturing the substrate, thereby stably achieving a connection between the internal patterns and the external terminal and maintaining the connection even in the case of an error occurring in a step for forming a through hole on the substrate. The ceramic multilayer substrate comprises a plurality of ceramic substrates being stacked vertically, each substrate having a designated thickness; pattern layers formed on surfaces of the ceramic substrates so as to form circuit elements; external terminals formed on side surfaces of the stacked ceramic substrates; and internal connection parts, each of which is formed on a part of the pattern layer, being connected to the external terminal so as to exchange signals with the outside and being broad enough to surround the external terminal.
Abstract:
A bond pad support structure for a semiconductor device comprises at least two metal layers subjacent an uppermost passivation layer on the device. An opening through the passivation layer exposes a top surface of a top metal layer. A metal feature is formed in an insulating layer, disposed between the two metal layers, and divides the insulating layer into a plurality of discrete sections. The metal feature includes a plurality of intersecting metal-filled recesses that interconnect the two metal layers. At least a portion of the metal feature is disposed within a cross-sectional area defined as a perimeter of a periphery of the opening.
Abstract:
A circuit substrate device composed of a circuit unit 2 and a multi-layer wiring substrate 3 in which a pattern conductor of the circuit unit 2 may be prevented from being warped or inundated. The circuit substrate device includes a circuit unit 2 having a pattern conductor formed by a thin film technique, and an insulating layer, and a multi-layer wiring substrate 3 having a connecting terminal portion 14 exposed from its major surface. The circuit unit is formed on a dummy substrate. The circuit unit is connected to the multi-layer wiring substrate 3 so that the pattern conductor is connected to the connecting terminal portion 14. The dummy substrate is then removed to give a structure comprised of the circuit unit 2 formed on the multi-layer wiring substrate 3. The pattern conductor of the circuit unit 2 is freed of warping or inundations along the direction of thickness of the circuit unit 2.
Abstract:
An apparatus for providing mechanical support to a column grid array package is disclosed. The column grid array package uses solder columns to provide electrical connections between a ceramic substrate and a printed circuit board. The ceramic substrate has two sides, with an integrated circuit chip mounted on one side and many input/output pads mounted on the other side. Solder columns are attached between the input/output pads and the printed circuit board. A corner post is located at each corner of the column grid array package to secure the position of the ceramic substrate in relation to the printed circuit board.
Abstract:
A main wall part is provided so as to surround an integrated circuit part. A sub-wall part which is in nullLnull shape is provided between each corner of the main wall part and the integrated circuit part. Therefore, even if the stress is concentrated due to heat treatment or the like, the stress is dispersed to the main wall part and the sub-wall part, and hence peeling between layers and a crack are unlikely to occur, as compared with the conventional art. Further, even if the crack and the like occur at the corner, moisture from the outside hardly reaches the integrated circuit part when the main wall part and the sub-wall part are coupled to each other. For this reason, it is possible to ensure an extremely high moisture resistance.
Abstract:
A mesh-like reinforcing structure to inhibit delamination and cracking is fabricated in a multilayer semiconductor device using low-k dielectric materials and copper-based metallurgy. The mesh-like interconnection structure comprises conductive pads interconnected by conductive lines at each wiring level with each pad conductively connected to its adjacent pad at the next wiring level by a plurality of conductive vias. The conductive pads, lines and vias are fabricated during the normal BEOL wiring level integration process. The reinforcing structure provides both vertical and horizontal reinforcement and may be fabricated on the periphery of the active device region or within open regions of the device that are susceptible to delamination and cracking.