Abstract: A semiconductor chip assembly includes a semiconductor device, a heat spreader, a conductive trace and first and second adhesives. The heat spreader includes a first post, a second post and a base. The conductive trace includes a pad and a terminal. The semiconductor device is electrically connected to the conductive trace and thermally connected to the heat spreader. The first post extends from the base in a first vertical direction into a first opening in the first adhesive, the second post extends from the base in a second vertical direction into a second opening in the second adhesive and the base is sandwiched between and extends laterally from the posts. The conductive trace provides signal routing between the pad and the terminal.

Abstract: A method for controlling variations of Al—Ti—B alloy crystal grain refinement ability through controlling a compression ratio of sectional area of Al—Ti—B alloy including: A. establishing a relationship between variations of refinement ability of Al—Ti—B alloy crystal grain and parameters of press process of the Al—Ti—B alloy; setting the parameters of press process and controlling the variation of the refinement ability of the Al—Ti—B alloy crystal grain through controlling a value of the compression ratio.

Abstract: The present disclosure uses at least two cascaded photodetectors. Device area is increased to provide a bigger current than a single photodetector under the same bandwidth. Hence, bandwidth efficiency (BRP) and saturation current-bandwidth product (SCBP) are improved for a high speed, a high responsivity and a high bandwidth with simple structure and low cost.

Abstract: A method and apparatus for rationalizing the allocation of the heat energy generated from catalytic combustion process for enameling machines wherein a circulating fan is installed above the oven body in a position close to its middle portion; above the front area of the oven body is an organic waste-gas inlet and above which is a primary catalytic chamber. A hot-air allocation chamber is located on the side of the said primary catalytic chamber. The said circulating fan connects the said primary catalytic chamber and the hot-air allocation chamber, delivering the circulating hot air resulting from catalytic combustion into the hot-air allocation chamber which is further connected to the front area, middle area and back area of the oven body via the front air flue, middle air flue and back air flue. With rationalized distribution of heat energy, this invention accelerates the baking speed, thereby improving productivity by 20%.

Abstract: A corrugated metal sheet member fabrication system formed of a material feeder, a roller-ramming unit, a cutting unit, a conveyer, and a finished product receiving rack is disclosed. When the reciprocating cutting-off device is moved forwards or backwards, the belt frame of the conveyer is synchronously moved to carry the movable frames forwards or backwards, and therefore the front driven roller and the rear driven roller with the conveying belt are moved with the movable frames forwards to the extended position or backwards to the retrieved position. After the movable frames has been moved forwards, the front side of the conveying belt is kept spaced above the base for receiving finished products from the reciprocating cutting-off device of the cutting unit and delivering collected finished products to the finished product receiving rack.

Abstract: A method of making a semiconductor chip assembly includes providing a bump and a ledge, wherein the bump includes first, second and third bent corners that shape a cavity, mounting an adhesive on the ledge including inserting the bump into an opening in the adhesive, mounting a conductive layer on the adhesive including aligning the bump with an aperture in the conductive layer, then flowing the adhesive between the bump and the conductive layer, solidifying the adhesive, then providing a conductive trace that includes a pad, a terminal and a selected portion of the ledge, providing a heat spreader that includes the bump, then mounting a semiconductor device on the bump within the cavity, electrically connecting the semiconductor device to the conductive trace and thermally connecting the semiconductor device to the heat spreader.

Abstract: A method for culturing the yeast for enhancing pentitol production is provided. The yeast cultured according to the present disclosure is Pichia stipitis. Application of the yeast in pentitol production by fermention of the lignocellulosic hydrolysate or the xylose-to-pentitol production yield can be enhanced 3 to 6 times from the non-detoxified or the overliming-processed lignocellulosic hydrolysate.

Abstract: An angle adjustment structure installed in a hydraulic cut-off press between a worktable and a machine base for adjusting the angular position of the worktable relative to the machine base is disclosed to have arched rails fixedly symmetrically provided at two opposite upright peripheral walls of the worktable at the bottom side, arched sliding grooves respectively formed in two opposite upright peripheral walls of the machine base at the top side for supporting the arched rails, a worm pivotally mounted in the machine base, and an arched worm gear fixedly mounted in the worktable at the bottom side and meshed with the worm for moving the worktable relative to the machine base along the arched sliding grooves upright rotation of the worm to adjust the angular position of the worktable by an external biasing force.

Abstract: A USB keyboard arrangement having N-keys rollover and the method thereof mainly make use of rearranging a keycode of a firmware program of the USB keyboard through sets of bit maps to control each key thereon. After modifying a matrix, each key within a certain key-area can favorably avert from key ghosting existed in the matrix circuit. Therefore, when all keys in the key-area are concurrently pressed, isolated signals of the keys can be simultaneously sensed. While alternatively adjusting the firmware program through the above methods and adapting the methods to the prior art to split the keys in the key-area of the matrix from the crosspoints of key ghosting, the key-area of the USB keyboard can be provided with concomitantly sending isolated signals.

Abstract: A cathode electrophoretic deposition (EPD) suspension is provided by mixing an ionomer solution with an electrolyte. An anode EPD suspension is provided via mixing carbon nanomaterial (CNM)-supported catalyst with a solution of the same composition as that of the cathode EPD suspension. Ultrasonication and high-speed stirring are executed on the cathode and anode EPD suspensions, thus turning them into homogenous suspensions. There is provided a low-voltage EPD apparatus incorporated with a porous material to separate it into anode and cathode compartments. The anode and cathode EPD suspensions are filled in the anode and cathode compartments, respectively. An inert gas is introduced into the anode compartment for stirring the anode EPD suspension. An electrode base substrate is used as the anode of the EPD apparatus. A low-voltage direct current (DC) power supply is used to supply DC low voltage to the EPD apparatus, thus evenly coating a catalyst layer on the substrate.

Abstract: A high-quality epitaxial silicon thin layer is formed on an upgraded metallurgical grade silicon (UMG-Si) substrate. A thin film interface is fabricated between the UMG-Si substrate and the epitaxial silicon thin layer. The interface is capable of internal light reflection and impurities isolation. With the interface, photoelectrical conversion efficiency is improved. Thus, the present invention is fit to be applied for making solar cell having epitaxial silicon thin layer.

Abstract: A gas cooker control system includes an ignition controller including a touch button, a resistor, a first comparator, a second comparator and a third comparator, one end of the touch button connected to external power source, and the other end connected to first inputs of the first, second and third comparators, the resistor being connected between the inputs of the first, second and third comparators and ground, outputs of the first, second and third comparators being connected to an igniter, a gas valve and a system power source; a gas valve controller including a switch circuit connected to a power source, at least one gas valve circuit connected between the switch circuit and ground, and a protection circuit parallel to the at least on gas valve circuit; and a power and ignition controller driving device including a power source driving circuit, an ignition driving circuit and a comparison circuit.

Abstract: A DC steam plasma torch includes front, middle and rear sections. The front section includes a first amount and a first electrode attached to the first amount, thus defining co-axial first internal and external coolant channels. The middle section includes a second mount and a second electrode co-axially connected to the second mount, thus defining co-axial second internal and external coolant channels. The rear section includes an insulating transient element connected to the second electrode, a window frame connected to the insulating transient element and a window provided in the window frame. A first swirl generator is provided between the first and second sections to receive primary working gas and generating a swirl in the same. A second swirl generator is provided between the middle and rear sections to receive auxiliary working gas and generating a swirl in the same.

Abstract: A manual cup sealer includes a frame unit, a sliding carrier board slidably mounted in the frame unit and carrying a lower electric heat sealing die, a transmission shaft pivotally mounted in the frame unit, a first link coupled to the transmission shaft, a first spring member connected between the first link and the sliding carrier board, a die link connected to the transmission shaft through a second link and holding an upper electric heat sealing die, and a handlebar operable by a user to rotate the transmission shaft clockwise/counter-clockwise for causing the sliding carrier board to be moved in and out of the frame unit and the upper electric heat sealing die to be lowered toward the lower electric heat sealing die to seal a sealing film to a plastic cup in the lower electric heat sealing die.