摘要:
An illumination apparatus and method of manufacture of the same in which an array of light-emitting elements is aligned to an array of optical elements to achieve a thin and efficient light source that can also be arranged to provide directional and/or programmable illumination.
摘要:
Disclosed is a module for electrical components. In said module, a component chip is glued to the top of a multilayer substrate which comprises integrated wiring and on which bondable terminal faces are provided. The component chip is fitted with bond pads on the upward-facing surface thereof and is connected to the substrate by means of bond wires. The bond wires are guided such that one respective ball thereof is bonded to a terminal face while the wedge thereof is bonded directly to one of the bond pads.
摘要:
System for providing an open-cavity semiconductor package and method for wire bonding a finger sensor die (300) to an external circuit. The finger sensor die includes a sensor array (316) having one or more die contacts (302) that are wire bonded to one or more external contacts of the external circuit so that a usable portion of the sensor array is maximized. The method comprises steps of forming a ball at a first end of a bonding wire (314), forming an electrically conductive connection between the ball and a selected external contact of the external circuit, extending the bonding wire to a selected die contact so as to form a wire loop having a low loop height (310), and forming an electrically conductive stitch connection between a second end of the bonding wire and the selected die contact.
摘要:
An illumination apparatus and method of manufacture of the same in which an array of light-emitting elements is aligned to an array of optical elements to achieve a thin and efficient light source that can also be arranged to provide directional and/or programmable illumination.
摘要:
A semiconductor device according to the present invention includes a semiconductor chip, an electrode pad made of a metal material containing aluminum and formed on a top surface of the semiconductor chip, an electrode lead disposed at a periphery of the semiconductor chip, a bonding wire having a linearly-extending main body portion and having a pad bond portion and a lead bond portion formed at respective ends of the main body portion and respectively bonded to the electrode pad and the electrode lead, and a resin package sealing the semiconductor chip, the electrode lead, and the bonding wire, the bonding wire is made of copper, and the entire electrode pad and the entire pad bond portion are integrally covered by a water-impermeable film.
摘要:
There is provided a bonding wire for semiconductor, capable of ensuring a favorable wedge bondability even when bonded to a palladium-plated lead frame, superior in oxidation resistivity and having a core wire of copper or a copper alloy. This bonding wire comprises: a core wire of copper or a copper alloy; a coating layer containing palladium and having a thickness of 10 to 200nm; and an alloy layer formed on a surface of the coating layer, such alloy layer containing a noble metal and palladium and having a thickness of 1 to 80nm. The aforementioned noble metal is either silver or metal, and a concentration of such noble metal in the alloy layer is not less than 10% and not more than 75% by volume.
摘要:
The invention concerns a method of electrically connecting a semiconductor chip (1) to at least one contact surface by means of a thin wire whose first end is welded to the at least one contact surface and whose second end is connected to a contact area of the semiconductor chip (1). In order to establish a good connection between the wire and the contact area of the semiconductor chip (1), the second end of the wire is welded to a wedge-shaped metal part (5) which is disposed on the contact area of the semiconductor chip (1) and is conductively connected thereto. The metal part (5) is formed by a nailhead contact (6) whose free end is guided in a loop and connected to the nailhead by a wedge contact.
摘要:
In an IC packaging structure, ball bonding is performed on patterns (4) on a circuit substrate (1) as first bonding, and ballless bonding is performed on pad electrodes (5) on an IC chip (2) as second bonding. An IC packaging method includes a first step of forming a gold ball electrode (5a) on each of pad electrodes (5) of an IC chip, a second step of ball-bonding one end of a gold wire (6) on each of patterns of a circuit substrate, and a third step of thermally compression-bonding the other end of the gold wire on a corresponding one of the gold ball electrodes formed on the pad electrodes.