摘要:
A multifunctional supporting frame for a web camera, comprises a movable supporting clamping seat having a hollow rectangular receiving chamber; the rectangular receiving chamber being formed by an upper L shape sheet, a middle U shape sheet, and a lower enclosed rectangular sheet; one lateral side of the L shape sheet being extended with a sheet plate; at least one guide post being extended from one surface of the sheet plate; the guide posts being combined with springs so as to be formed as a telescopic structure which is adjustable to have a desire width for clamping an object; and a bendable shaft seat formed by an upper U shape plate and a lower U shape plate which are pivotally engaged. A lens set is installed above the movable supporting clamping seat by using a lens set pin seat.
摘要:
A semiconductor package on which a semiconductor device can be stacked and fabrication method thereof are provided. The fabrication method includes the steps of mounting and electrically connecting at least one semiconductor chip on the substrate, mounting an electrical connecting structure consisting of an upper layer circuit board and a lower layer circuit board on the substrate and electrically connecting the electrical connecting structure to the substrate, where the semiconductor chip is received in a receiving space formed in the electrical connecting structure; forming an encapsulant on the substrate encapsulating the semiconductor chip and the electrical connecting structure, and after the encapsulant is formed, exposing top surface of the upper layer circuit board with a plurality of solder pads from the encapsulant to allow at least one semiconductor device to electrically connect the upper layer circuit board so as to form a stack structure.
摘要:
A stacked semiconductor structure and fabrication method thereof are provided. The method includes mounting and connecting electrically a semiconductor chip to a first substrate, mounting on the first substrate a plurality of supporting members corresponding in position to a periphery of the semiconductor chip, mounting a second substrate having a first surface partially covered with a tape and a second surface opposite to the first surface on the supporting members via the second surface, connecting electrically the first and second substrates by bonding wires, forming on the first substrate an encapsulant for encapsulating the semiconductor chip, the supporting members, the second substrate, the bonding wires, and the tape with an exposed top surface, and removing the tape to expose the first surface of the second substrate and allow an electronic component to be mounted thereon. The present invention prevents reflow-induced contamination, spares a special mold, and eliminates flash.
摘要:
A sensor semiconductor device and a method for fabricating the same are proposed. A plurality of metal bumps and a sensor chip are mounted on a substrate. A dielectric layer and a circuit layer are formed on the substrate, wherein the circuit layer is electrically connected to the metal bumps and the sensor chip. Thus, the sensor chip is electrically connected to the substrate via the circuit layer and the metal bumps. The dielectric layer is formed with an opening for exposing a sensor region of the sensor chip. A light-penetrable lid covers the opening of the dielectric layer, such that light is able to penetrate the light-penetrable lid to reach the sensor region and activate the sensor chip. A plurality of solder balls are mounted on a surface of the substrate free of mounting the sensor chip, for electrically connecting the sensor chip to an external device.
摘要:
A BGA (ball grid array) package with enhanced electrical and thermal performance, and a method for fabricating the BGA package, are proposed. This BGA package is characterized by the use of a power-connecting heat spreader and a ground-connecting heat spreader, which are respectively used to electrically connect power pad and ground pad to a packaged chip as well as to dissipate heat generated by the chip during operation. The ground-connecting heat spreader is arranged to entirely cover the chip, and thereby provides good shielding effect for the chip, which helps improve electrical performance of the chip during operation. Further, the ground-connecting heat spreader is partly exposed to outside of an encapsulation body that encapsulates the chip, by which satisfactory heat-dissipation efficiency can be achieved.
摘要:
A wafer level semiconductor package with a build-up layer is provided, which includes a glass frame having a through hole for receiving a semiconductor chip therein, a low-modulus buffer material filled within the space formed between the semiconductor chip and the glass frame, a build-up layer formed on the glass frame and the semiconductor chip such that the build-up layer is electrically connected to the semiconductor chip, and a plurality of conductive elements mounted on the build-up layer so that the semiconductor chip is electrically connected to external devices. With the use of the glass frame and low-modulus buffer material, the wafer level semiconductor package thus-obtained is free from warpage, chip-crack, and delamination problems and the reliability thereof is enhanced. A method for fabricating the wafer level semiconductor package is also provided.
摘要:
A semiconductor package and a fabrication method thereof are provided in which a dielectric material layer formed with a plurality of openings is used and a solder material is applied into each of the openings. A first copper layer and a second copper layer are in turn deposited over the dielectric material layer and solder materials, and the first and second copper layers are patterned to form a plurality of conductive traces each of which has a terminal coated with a metal layer. A chip is mounted on the conductive traces and electrically connected to the terminals by bonding wires, with the dielectric material layer and solder materials being exposed to the outside. This package structure can flexibly arrange the conductive traces and effectively shorten the bonding wires, thereby improve trace routability and quality of electrical connection for the semiconductor package.
摘要:
A BGA (ball grid array) package with enhanced electrical and thermal performance, and a method for fabricating the BGA package, are proposed. This BGA package is characterized by the use of a power-connecting heat spreader and a ground-connecting heat spreader, which are respectively used to electrically connect power pad and ground pad to a packaged chip as well as to dissipate heat generated by the chip during operation. The ground-connecting heat spreader is arranged to entirely cover the chip, and thereby provides good shielding effect for the chip, which helps improve electrical performance of the chip during operation. Further, the ground-connecting heat spreader is partly exposed to outside of an encapsulation body that encapsulates the chip, by which satisfactory heat-dissipation efficiency can be achieved.
摘要:
A semiconductor read-only memory (ROM) and a method of fabricating the same are provided. The ROM device is structured in such a manner that allows the fabrication to include a fewer number of mask processes. This makes it more cost effective and allows a cycle time that is shorter than that of the prior art. Moreover, the particular structure of the ROM device makes punchthrough less likely to occur between any neighboring pairs of the buried bit lines when the ROM device is further scaled down. The ROM device is constructed on a semiconductor substrate which is partitioned into a peripheral region and a cell region. A plurality of STI structures are formed at predefined locations in both the peripheral region and the cell region. Immediately after this, a first ion-implantation process can be performed on the cell region to form a plurality of buried bit lines. Subsequently, the dielectric isolation layers in all of the STI structures in the cell region are removed, leaving a plurality of empty trenches behind. A conformal insulating layer and a conductive layer are then successively formed over the wafer, and the conductive layer is further selectively removed to form a word line in the cell region and a gate in the peripheral region. In the code implantation process, selected channel regions between the buried bit lines are doped with impurities for code implantation of data into the ROM device.
摘要:
A connector and printed circuit board assembly includes a printed circuit board, a connector fixed on the printed circuit board, and a fixing board fixed on the connector, the fixing board defining a through hole, a connecting member fixed on the printed circuit board adjacent to the connector, a threaded retainer, and a threaded post securely connected with the connecting member. The threaded post passes through the through hole and seats the threaded retainer to lock the connector onto the printed circuit board.