Abstract: A filler composition for welding onto a substrate is composed of 82.5˜96.5 wt %, aluminum, 3.0˜10.0 wt % copper, 0.2˜1.5 wt % magnesium, 0.1˜1.5 wt % silver, 0.1˜2.0 wt % scandium, 0˜1.5 wt % zirconium, and 0˜1.0 wt % titanium, and can be welded with a high success rate to a substrate (such as an aluminum-copper alloy substrate) and avoiding a hot cracking phenomenon and a low welding strength, so as to achieve the effects of enhancing the yield rate and lowering the cost of a product.

Abstract: A low-noise transmitting receiving earset includes a housing covered with a grille, a speaker mounted inside the housing adjacent to the grille and facing the back side of the housing, a first microphone mounted in the hub of the grille and facing the front side of the housing for picking up resonant sound waves from the external auditory canal of the user's ear, and a second microphone mounted inside the housing remote from the speaker for receiving voices directly from the user's mouth.

Abstract: A portable data storage device includes a control unit coupled via a predetermined interface with a computer having an operating system with user authority limits, and a memory divided into a segment I for storing related applications, a public segment II for temporarily storing instructions and data, and a hidden segment III for saving client data. In a method of accessing data via the portable data storage device, when the computer is to write data into or read data from the segment III, the data to be written or read is first temporarily stored in the segment II, and specific read or write instructions for a read/write level application interface are written into the segment II by the applications in the segment I and executed, so as to complete data exchange and access between the portable data storage device and the computer.

Abstract: A method of executing a default instruction set of a storage device for conveniently connecting the storage device to a computer includes the following steps: connecting a USB interface of the storage device to a USB interface of the computer; the computer using interface commands to determine a device class of the storage device; a controller of the storage device actuating a built-in Auto Dispatch program and returning a message to the computer that the connected device is a keyboard; the controller sending specific serial keyboard commands to the computer via the Auto Dispatch program; the controller resetting an interface class code setting thereof when the computer has received the specific serial keyboard commands; the computer using the interface commands to check the interface class code setting to identify the storage device; and the controller returning a message to the computer that the connected device is a mass storage device.

Abstract: Automatic process control of after-etch-inspection critical dimension. A dielectric layer is deposited over a substrate and is then planarized to a first thickness. A cap oxide layer having a second thickness is deposited, wherein the combination of the first thickness and the second thickness is substantially constant. An ADI CD of a contact hole to be formed on the substrate is altered and pre-determined based on the second thickness of the cap oxide layer. A photoresist layer is formed on the cap oxide layer. An opening having the predetermined ADI CD is formed in the photoresist layer. Using the photoresist layer as an etching mask, the cap oxide layer and the dielectric layer is etched through the opening to form a contact hole having an AEI CD.

Abstract: A safety hypodermic syringe formed of a barrel, a plunger, a retainer, a rubber stopper, a needle holder and a needle is disclosed. The retainer is forced by the plunger into engagement with the needle holder when the plunger is pushed forwards to squeeze a fluid medicine out of the barrel so that the needle holder and the needle are moved carried by the retainer into the inside of the barrel to have spring hooks of the retainer hooked on the rear end edge of the barrel upon a back stroke of the plunger and the needle holder with the needle are kept in the rear side inside the barrel as the plunger is pushed forwards again.

Abstract: A interference-free transmitting receiving earset includes a housing houses a speaker, a grille covering the speaker and having a front center tube, and two microphones mounted in the center tube of the grille in reversed directions to pick up sound waves from the user's external auditory canal and wound waves from the speaker respectively and to eliminate interference of sound waves from the speaker with sound waves produced by the user in the external auditory canal.

Abstract: A method for fabricating a contact hole is provided. A semiconductor substrate having thereon a conductive region is prepared. A dielectric layer is deposited on the semiconductor substrate and the conductive region. An etching resistive layer is coated on the dielectric layer. A silicon-containing hard mask bottom anti-reflection coating (SHB) layer is then coated on the etching resistive layer. A photoresist layer is then coated on the SHB layer. A lithographic process is performed to form a first opening in the photoresist layer. Using the photoresist layer as a hard mask, the SHB layer is etched through the first opening, thereby forming a shrunk, tapered second opening in the SHB layer. Using the etching resistive layer as an etching hard mask, etching the dielectric layer through the second opening to form a contact hole in the dielectric layer.

Abstract: A method of overcurrent protection for multi-slot flash memory card reader mainly includes integrating overcurrent protection circuit and power-supply circuit for the multiple slots of the card reader into one single control chip; and, when the overcurrent protection circuit detects an overcurrent at a particular slot, cutting off power supply to that particular slot of the card reader and enabling an overcurrent state register, so that a signal is provided to firmware in the control chip to display an icon of the card reader on a computer as a state indicating an abnormal condition. Whereby, the card reader and a flash memory card inserted therein, or other apparatus connected thereto would not be damaged when an overcurrent occurs, and a user may clearly know the exact point on the card reader where the overcurrent occurs.

Abstract: Automatic process control of after-etch-inspection critical dimension. A dielectric layer is deposited over a substrate and is then planarized to a first thickness. A cap oxide layer having a second thickness is deposited, wherein the combination of the first thickness and the second thickness is substantially constant. An ADI CD of a contact hole to be formed on the substrate is altered and pre-determined based on the second thickness of the cap oxide layer. A photoresist layer is formed on the cap oxide layer. An opening having the predetermined ADI CD is formed in the photoresist layer. Using the photoresist layer as an etching mask, the cap oxide layer and the dielectric layer is etched through the opening to form a contact hole having an AEI CD.

Abstract: A Bluetooth earphone set, which includes a main unit that houses an auto-reversible first winding mechanism and an auto-reversible second winding mechanism, an earphone cable coupled to the auto-reversible first winding mechanism for voice output, a signal connector cable coupled to the auto-reversible second winding mechanism and connectable to a cell phone, a switch, which is switched between a first position for enabling the earphone cable to output voice signal that is received wirelessly from a cell phone by the main unit and a second position for enabling the earphone to output voice signal that is received from a cell phone through the signal connector cable.

Abstract: A method for forming a contact opening is described. A substrate formed with a semiconductor device thereon is provided, and then an etch stop layer, a dielectric layer and a patterned photoresist layer are formed sequentially over the substrate. The exposed dielectric layer and 20% to 90% of the thickness of the exposed etch stop layer are removed to form an opening. After the patterned photoresist layer is removed, an etch step using a reaction gas is conducted to remove the etch stop layer remaining at the bottom of the opening and form a contact opening that exposes a part of the device, wherein the reaction gas is selected from CF4, CHF3 and CH2F2. By using the method, a micro-masking effect is avoided, and oxidation at the bottom of the contact opening conventionally caused by the photoresist removal using oxygen plasma is also avoided.

Abstract: An electrical connector to be connected to a circuit board having two edge surfaces, on which connection points are disposed. The connector includes a plastic base and terminals. The plastic base has a longitudinal shape, two rows of terminal slots, and a longitudinal connection slot between the two rows of terminal slots. The connection slot has an opening facing upwards such that the circuit board can be inserted, from top to bottom, for connection. The terminals are disposed in the terminal slots of the plastic base. Each terminal has an elastic contact to be electrically connected to a connection point of the circuit board, and a pin portion extending out of a bottom of the plastic base. An elastic pressing member is disposed on the plastic base. The elastic pressing member has an elastic arm pressing against the circuit board.

Abstract: The present invention discloses a system for speed error compensation. A predetermined speed signal subtracts a feedback speed signal to generate a speed error signal, and a microprocessor receives the speed error signal and outputs a calculated result. A feedback controller receives the calculated result and generates a first tracking control effort signal. A feedforward controller receives the speed error signal and generates a second tracking control effort signal according to a DC steady state error in the speed error signal. An optical head module moves at an actual speed determined by the total of the first tracking control effort signal and the second tracking control effort signal. A gain controller generates the feedback speed signal according to an actual speed signal detecting from the actual speed.

Abstract: A multi-card connector assembly includes a mainboard on which a mainboard connector is disposed, a multi-card connector, and a circuit board, on which traces and a connection interface are formed. The multi-card connector includes a common seat formed with a plurality of slots into which different electrical cards may be inserted, and terminals disposed on the common seat. Each terminal has a pin extending out of a bottom surface of the common seat. Each trace has a first terminal and a second terminal, which are disposed on a plane of the circuit board. The first terminals of the traces are arranged in correspondence with the pins of the terminals of the multi-card connector such that the pins of the terminals are respectively soldered to the first terminals of the traces. The connection interface is electrically connected to the second terminals of the traces and is flexibly and electrically connected to the mainboard connector.

Abstract: A lateral engaging structure of an electrical connector is disposed at one side of a plastic base of the connector to engage with an inserted circuit board. The structure includes a main body and an elastic arm. The main body has vertical first and transversal plates. The first plate is connected to the plastic base. The transversal plate is disposed at a front end of the first plate and extends in a direction perpendicular to the first plate. The transversal plate is formed with a step including a first surface, a second surface and a vertical stopping surface. The elastic arm has a rear end connected to the first plate, a front section engaging with the circuit board, and a front end formed with a stopping portion, which protrudes forward and is disposed below the first surface.

Abstract: A low-noise transmitting receiving earset includes a housing covered with a grille, a speaker mounted inside the housing adjacent to the grille and facing the back side of the housing, a first microphone mounted in the hub of the grille and facing the front side of the housing for picking up resonant sound waves from the external auditory canal of the user's ear, and a second microphone mounted inside the housing remote from the speaker for receiving voices directly from the user's mouth.

Abstract: The present invention discloses a method of detecting orientation of an optical disk drive. Firstly, a first moving distance is measured by using a first force driven on a movable optical pick up head of the optical disk drive for a preset period. Next, a second moving distance is measured by using a second force driven on the movable optical pick up head for the preset period, wherein the second force and the first force have opposite direction but the same amplitude. Next, it is determined that the optical disk drive is horizontal orientation when the difference between the first and second moving distances falls within a pre-determined value. Additionally, a first moving time is measured by using a first force driven on a movable optical pick up head for a pre-determined distance.

Abstract: An upright battery seat for a button battery includes a base and positive and negative terminals each having an elastic arm located in a slot and electrically connected to the battery, a positioning portion positioned with the base, and a pin portion extending out of the base. The base has a circumferential wall and a longitudinal placement surface to form the slot. The wall is formed with an opening and first and second engagement portions. The first and second engagement portions engage with two side edges of the battery. The first engagement portion has an engaging surface substantially perpendicular to an inner surface of the wall. The arm of the positive terminal projects over the inner surface and enables one side of the battery to engage with the engaging surface. When the battery is pressed down, the side edge of the battery can escape from the engaging surface without locking.

Abstract: A chip connector includes an outer seat, an inner seat, terminals and an upper cover. The outer seat is formed with an opening. The inner seat has a top formed with a placement region in which a chip is placed. The placement region is formed with terminal slots inserted into the outer seat. The terminals are respectively disposed in the terminal slots. Each terminal has an elastic arm which can elastically move vertically and has a connection point to be electrically connected to a connection point of the chip. The upper cover presses down and positions the chip when being locked with the outer seat. The outer seat is formed with a positioning part, which is made of a metal material and downwardly projects over the bottom surface. The outer seat is positioned with and bonded to a circuit board through the positioning part.