Abstract: The present invention is to provide a wind guide device for a cooling fan mounted on a CPU of a computer comprising a first shroud and a second shroud. A first opening at one side of the first shroud having the fan mounted thereon is coupled to a vent opening on a housing of the computer for convection. A first opening at one side of the second shroud is coupled to a second opening at the other side of the first shroud to form an upper air passage and a lower air passage. Fins on one side of the CPU are partially enclosed by an L-shaped frame element extended from the second shroud so as to cause an air current generated by the fan to accelerate through the upper and lower air passages for cooling the CPU and other electronic elements therearound.

Abstract: A fixing structure for extension cards includes a set of extension slots, a positioning element and a resilient plate. The positioning element engages on an external side of the set of the extension slots, and the resilient plate is fixing on an internal side of the set of the extension slots. A folded edge of the resilient plate is inserted through a first mounting slot of the positioning element to firmly secure the positioning element on a computer casing. A stem of the resilient plate is pulled toward an inside of the computer casing to release the folded edge of the resilient plate from the first mounting slot of the positioning element so that the positioning element is pushed upward to disengage from the set of extension slots.

Abstract: The present invention is to provide a safety switch in an electronic device comprising a seat having an opening and a trigger switch fitted in a cavity of the opening, wherein one end of a signal cable extended from the trigger switch is formed as a connector, and the signal cable sequentially run over two spaced apart cylinders disposed in the opening and passes through a gap on the bottom of the opening for exposing the connector outside the seat, such that, while a pulling force exerted on the signal cable, an additional support provided by the cylinders will prevent the pulling force from transmitting to the trigger switch along the signal cable to cause a disengagement of the trigger switch from the signal cable.

Abstract: The present invention is to provide a mechanism for removably fastening an electronic device to a sub-frame of computer case, which comprises two pairs of first support member and second support member both in a shape of elongate plate, the first support members and second support members can be engaged with each other and mounted on the left and right sides of an electronic device respectively, enabling the electronic device to be sliding into a sub-frame of a computer case and installed in therein.

Abstract: The present invention is to provide a mechanism for fastening a rear side of computer comprising a rear panel provided at the rear of a case of the computer, and a fastening assembly having one end pivotably connected to the case adjacent the rear panel for pivoting the fastening assembly to approach or move away from the rear panel, wherein, after a plurality of fastening members being mounted at the rear panel, the fastening assembly is able to tightly press the fastening members thereby sandwiching an engagement piece of each fastening member between the fastening assembly and the rear panel and quickly fastening the fastening members at the rear panel.

Abstract: A security system installed in the casing of a computer to detect the condition of the casing of the computer, the security system including a switch which is switched on when the casing of the computer is opened, or switched off when the casing of the computer is closed, and a logic circuit connected to the switch and triggered by the switch to output an alarm signal to a burglar alarm when the casing of the computer is opened.

Abstract: An image pick-up device mounting arrangement includes a CCD (charge-coupled device) module mounted in an opening at a notebook computer's cover housing, which hold an LCD module, the CCD module being controlled by the notebook computer to pick up the image of the scene before it by using of a lens and a circuit board thereof, and to convert picked-up image signals into digital data for storing in memory in the notebook computer or transmission to a video conference system through a modem.

Abstract: A wrist rest cover of a portable computer, wherein the size of the wrist rest cover is approximately equal to the size of a wrist rest. The wrist rest cove has an opening for exposing the glidepad and buttons of the portable computer. The wrist rest cover can be made to be comfortable and with a soft texture, and is fit for laying wrists thereon or made of transparent material. Besides, the wrist rest cover is designed in compliance with the human factors. The pictures, personal information or the like can be placed between the wrist rest cover and the portable computer. The transparent wrist rest cover can also be etched with various patterns on the interior side of the wrist rest cover.

Abstract: An apparatus casing quick mounting arrangement, which includes a computer housing having an apparatus insertion slot and a plurality of locating holes at a top flange above the apparatus insertion slot and at least one elongated guide hole, an apparatus casing mounted in the computer housing in alignment with the apparatus insertion slot to hold a computer peripheral apparatus, the apparatus casing having at least one locating strip slidably hooked in the at least one elongated guide hole at the computer housing to guide the apparatus casing into position, and a spring plate mounted on the apparatus casing and coupled to the computer housing to secure the apparatus casing in position, the spring plate having an angled front mounting flange fixedly fastened to the apparatus casing at a top side, and hooked portions raised from a free end thereof at a top side and respectively engaged into the locating holes at the computer housing from a bottom side.

Abstract: A dual-sided heat dissipating structure for BGA package includes a step-shaped first heat dissipating member adhering to an active side of the chip and a dish-shaped perforated second heat dissipating member adhering to a non-active side of the chip so that heat generated in the chip may be dissipated more effectively. The step surface first heat dissipating member may also serve as a press mold to enable bonding of inner leads of the substrate to the bonding pads of the chip be done along with adhering of the first heat dissipating member to the chip at same process in the mean time without additional process or equipment. The perforated second heat dissipating member enables moisture escaping from the package to avoid pop corn effect resulting from IR Reflow test. The package may be made at a thin thickness and low cost.

Abstract: Disclosed is a connecting structure for the signal lines of the liquid crystal display screen of a notebook computer installed between the primary machine of a notebook computer and a liquid crystal display screen, and comprising a casing, a first connector, and a second connector. The casing is connected to the liquid crystal display screen at one end thereof, while another end has an inserting portion for being inserted into the primary machine. A first connector is installed within the inserting portion of the casing. The first connector is connected to the signal lines of the liquid crystal display screen; A second connector is installed on the mother board of the primary machine. The second connector may be connected to the first connector. Thereby, the present invention can be used to connect the single lines of the liquid crystal screen and the primary machine.

Abstract: A computer mainframe case and side cover arrangement, which includes a computer mainframe case having a back opening and two coupling holes respectively provided at two opposite upright side walls thereof near the back opening, a side cover coupled to the computer mainframe case and closed on the back opening, the side cover having a top flange and a bottom flange perpendicularly backwardly raised from top and bottom sides thereof, and two coupling lugs respectively formed integral with two distal ends of the top flange and respectively coupled to the coupling holes at the computer mainframe case for enabling the side cover to be turned between a close position where the side cover is closed on the back opening of the computer mainframe case with the bottom flange thereof stopped at the bottom wall of the computer mainframe case, and an open position where the side cover is maintained in horizontal and supported on the upright side walls of the computer mainframe, and retaining devices respectively fastened t

Abstract: An enhanced heat dissipating Chip Scale Package (CSP) method and devices include preparing a heat dissipating base with a recess surrounded by a guarding wall. A chip with an integrated circuit (IC) layout is adhered the heat dissipating base in the recess. A substrate with a metallic circuit layer that is smaller size than the chip is then adhered to the chip. Then coupling the metallic circuit layer with the IC layout. A non-conductive resin is then filled in the recess within the guarding wall and covers the coupling portion. The resulting package device produced by means of BGA package process is small size and has enhanced heat dissipating property. The Package size/chip size ratio may be lower than 1.2 to meet the CSP requirements.

Abstract: Disclosed is a bearing structure of a central processing unit comprises a radiating plate, a back plate, a plurality of screws and elastic elements. The radiating plate has a heat conductive portion and a plurality of sleeves. The back plate is installed below the radiating plate and has a plurality of studs. The plurality of screws are placed within the sleeves of the radiating plate, and protrudes from the bottom of the radiating plate. The plurality of elastic elements being installed between the screws and the sleeve. The radiating plate is moved by the elastic elements so that the heat conductive portion of the radiating plate presses elastically the central processing unit. Therefore, the pressure will not be too large so as to harm the central processing unit, or too small so as to cause the unfastening therebetween. As a result, during assembly, the fastening force of the screws would not be adjusted. Thus, the assembly work becomes easily and the cost is reduced.

Abstract: A multi-chips semiconductor package and fabrication method mainly combines LOC and BGA techniques to overlap one chip upon another chip in an IC component package. One chip uses leads of a lead frame as connection interface of the circuit in the chip to outside. Another chip uses solder balls as connection interface of the circuit in another chip to outside. The two chips are supported by the lead frame without a substrate used in a conventional BGA package. The two chips may have same or different function. The structure is simple and easy to produce at low cost. The size and length of the IC component is smaller than the one produced by conventional multi-chips packaging techniques.

Abstract: A combination rack includes a partition frame, and two side frames fastened to the partition frame at two opposite lateral sides, the side frames and the partition frame having respective flat front and rear fenders respectively matched together in a flash manner, and respective bottom coupling plates respectively matched together in a flush manner and fixed together by hook means and screws to hold a computer mainframe and an expansion unit at two opposite sides of the partition frame between the front fenders and the rear fenders, the partition frame having an elongated through hole through which a bus line is inserted and connected between the computer mainframe and the expansion unit for signal transmission.

Abstract: A countersunk hole reinforcing structure, which includes a plate member having a countersunk hole formed of a circular recess and a screw hole at the center of the circular recess for the installation of a screw bolt to fix the plate member to an object below, wherein the plate member has a plurality of reinforcing ribs raised from the circular recess and equiangularly spaced around the screw hole to reinforce the structural strength of the wall body of the circular recess.

Abstract: A detachable housing structure of a computer, including a main base board and a detachable base board. The main base board includes a front section and a rear section. The rear section serves to bear a computer main circuit board, a power supply and other components. The detachable base board is detachably assembled with the front section. The detachable base board has an L-shaped structure, having a front vertical panel serving as the face panel of the computer and a horizontal panel on which the hard disc drive, floppy disc drive and CD ROM device are mounted. When assembling the detachable base board with the main base board, the detachable base board is locked and located by engaging structure and locking mechanism. The detachable base board can be easily drawn out of the main base board for maintenance, replacement and expansion.

Abstract: An actuating apparatus for optical scanners which can cause the lamp and the reflecting mirror to travel at a desired ratio of distances such that the total distance of scanner's light path before and after the lamp movement remains substantially unchanged. The actuating apparatus employs only one belt, thus greatly simplifying the structure of the scanner, improving the reliability thereof, and allowing the scanner to become more compact.