摘要:
The present invention provides a method of fabricating an electronic component, using a tool for pressing a chip against a substrate and heating the same, connecting a chip electrode and a substrate electrode together via a bump, placing the substrate in alignment with a die alignment plane for an upper die and a lower die, clamping the upper die and the lower die to form a cavity and exhausting the cavity via an exhaust hole to evacuate the same, and injecting melted resin into the cavity and curing the melted resin to provide sealing resin. Then, in a predetermined ambient at a predetermined temperature the substrate is pressed against a test board and a predetermined electrical signal is applied from the test board via an external electrode to the chip to test an operation of an electronic component configured on a unit region of the substrate and the chip. Thereafter, cutting along a virtual line completes the electronic component. Thus, a plurality of chips can be resin-sealed collectively with high precision and a plurality of electronic components can be burnt in. As a result, in mounting the chip to the substrate, sealing the same with resin and burning in the same to provide an electronic component, the electronic component can be efficiently fabricated, with the sealing resin having a dimension with high precision.
摘要:
There is provided a method for quantitatively detecting 8-oxo 2′-deoxyguanosine in an aqueous sample solution with high sensitivity. A method for quantitatively detecting 8-oxo 2′-deoxyguanosine in an aqueous sample solution, including the steps of 1) immobilizing a fluorescent probe molecule showing a fluorescence response specific to 8-oxo 2′-deoxyguanosine on surfaces of fine particles via a spacer unit and bringing the sample solution into contact with the fine particles, and 2) measuring a physical property of the fine particles before and after the contact with the sample solution to determine a change in the physical property.
摘要:
A child seat is constructed such that when the child seat is set facing the rear of the car on a car seat, the child seat is securely fixed on the seat. A handle surrounding the front of a sitting occupant is provided in a seat back portion of the child seat, and a tether extends from the handle. When the child seat is set on a car seat so that it faces the rear of the car, the tether is pulled toward the rear of the car. A hook on the tip portion of the tether is latched onto a tether anchor of the car behind the car seat, and the rear panel and the handle are joined.
摘要:
A child seat is formed of a bottom squab on which buttocks of a child is seated, a seat back connected to the bottom squab for supporting a back of the child, and side walls disposed on side portions of the bottom squab and the seat back. An indicator for indicating an inclination angle of the child seat is arranged on a top of one of the side walls. In the child seat, the inclination angle of the seat can be easily checked through the indicator, thus facilitating the attachment of the child seat to a vehicle seat.
摘要:
A packaged semiconductor device includes a semiconductor chip having first and second surfaces, a plurality of electrodes formed on the first surface of the semiconductor chip, a die pad bonded to the second surface of the semiconductor chip for supporting the semiconductor chip, a plurality of leads having first and second ends, the first ends being connected to corresponding electrodes of the semiconductor chip, a heat spreading plate disposed in opposed relation to the die pad and having an area larger than that of the die pad, at least one end portion of the heat spreading plate lying in the same plane as the second ends of the plurality of leads, and a resin package body encapsulating the semiconductor chip, the die pad, the first ends of the plurality of leads, and the heat spreading plate.
摘要:
A carrier tape includes an insulating film supporting a plurality of leads. The film has a center device hole for receiving a semiconductor chip therein, a plurality of outer lead holes formed at the periphery of the center device hole, a lead supporting portion positioned between the center device hole and the outer lead holes, and a link portion positioned between a pair of adjacent outer lead holes and connected to the lead supporting portion for directing the flow of molten resin during encapsulation of the semiconductor chip. The link portion includes an opening or recess. The plurality of leads of the carrier tape are supported on the lead supporting of the film, with one end portion of each lead projecting into the center device hole of the film. During manufacture, a semiconductor chip having a plurality of electrodes is positioned within the center device hole, and the leads are electrically connected to respective electrodes of the semiconductor chip. The resultant chip is placed within a cavity of a mold, and a molten resin is injected into the cavity through the opening or recess passage formed in the link portion of the film.
摘要:
A metal mold for plastic molding a semiconductor device by a transfer-molding method with the use of thermo-hardening plastics. The mold includes a pot section into which plastic is injected; a cavity section where a product is formed; a runner section constituting a path for the plastic from the pot section to the cavity section; a gate section provided between the runner section and the cavity section so as to reduce the cross-sectional area for the flow of the plastic which flows therethrough from the runner section to the cavity section; a flow restriction section provided in the path of the runner section so as to reduce the cross-sectional area of the flow of plastic.
摘要:
Vehicle child safety seat including: a seat main body on which an occupant sits; a seat belt for restraining the occupant to the seat main body, the seat belt including a shoulder harness having a belt shape and facing a shoulder of the occupant; a harness cover formed in an elongated pouch shape and slidably attached to the shoulder harness in a longitudinal direction such that the shoulder harness is passed through paired insertion holes formed on respective end portions of the harness cover in the longitudinal direction; and a shoulder pad formed in an elongated shape, accommodated in the harness cover, placed between the shoulder and the shoulder harness along the longitudinal direction of the shoulder harness, and including paired connection portions provided on respective end portions of the shoulder pad in the longitudinal direction so as to be connected to the shoulder harness slidably in the longitudinal direction.
摘要:
A child seat anchoring device for anchoring a child seat to a vehicle body includes first and second tether belts, a connecting member connecting the first and second tether belts, a housing of the connecting member, and first and second shafts in the connecting member. One of the first and second shafts is a tension driven shaft movable by a tension. An urging member is provided for urging the tension driven shaft, and a see-through portion is provided with the housing. A tension indicator having an indicating portion faces the see-through portion. The other of the first and second shafts serves as a locking shaft movable toward the tension driven shaft. The housing further includes a pressing member, a clamping portion for clamping the tether belt, and an operating portion for moving the locking shaft.
摘要:
A laser-transmissible composition comprises: a dynamic crosslinking polyolefin thermoplastic elastomer that has a melting point ranging from 160 to 210 degrees Centigrade in case of non-coloring, and dye salt exhibiting transmission of a laser having a wavelength of 800 to 1200 nm. A method for laser welding comprises: putting a laser-transmissible molded workpiece 1 made from the laser-transmissible composition onto a laser-absorptive molded workpiece 2 having a laser-absorbent 7, irradiating laser 3 towards the laser-transmissible molded workpiece 1 to weld the laser-transmissible molded workpiece 1 and the laser-absorptive molded workpiece 2.