摘要:
A liner for contamination control in a reflow oven, which reflow oven has surfaces, includes a substrate having a length and a width defining an area. The substrate has a thickness defined by first and second sides. An adhesive is positioned on the first side of the substrate. The substrate is removably adhered to the surfaces of the reflow oven, and the liner is configured to accumulate solder reflow contaminants thereon or to repel solder flux vapors and/or fumes, and is configured for removal from the surfaces with any accumulated contaminants. A method of treating the surfaces of a reflow oven is also disclosed.
摘要:
A reflow oven includes a chamber housing including surfaces that are in contact with heated air mixed with contaminants, including flux, and a water-soluble layer selectively applied to the surfaces of the chamber housing. Embodiments of the reflow oven include an acrylic-based layer, such as an acrylic paint. In one embodiment, the acrylic paint includes a water-soluble polymer, a polymer emulsion, and water. The water-soluble polymer includes butyl benzyl phthalate. In some embodiments, the acrylic paint includes 1-10% by weight butyl benzyl phthalate, 30-55% by weight acrylic polymer emulsion, and balance water. In a certain embodiment, the acrylic paint includes 1-5% by weight butyl benzyl phthalate, 35-50% by weight acrylic poly emulsion, and balance water. Methods of treating surfaces of the reflow oven are further disclosed.
摘要:
Printed circuit boards, assemblies and the like are heated uniformly from edge to edge or to a desired lateral temperature profile while being conveyed through a heating area. The conveying systems reliably conveys circuit boards and the like through the heating area without dropping them. A rail heater is provided to heat rails supporting conveyors having pins to hold circuit boards and the like. A control for the rail heaters controls the temperature of the rails so the circuit boards are positively supported on the conveyors and have a uniform temperature profile or desired temperature profile from edge to edge.
摘要:
A semiconductor wafer baking and handling system includes a pair of wheel assemblies each comprising a pair of spaced apart plates having opposed, aligned slots formed therein for receiving and supporting semiconductor wafers. A wafer transporting air track includes portions extending between the plates of both of the wheel assemblies. The wheel assemblies are rotated about axes lying substantially in the plane of and extending perpendicularly to the path of wafer travel along the air track to sequentially position the slots to receive semiconductor wafers, to rotate the received semiconductor wafers through an arc of 180.degree., and to subsequently sequentially position the slots to effect removal of the semiconductor wafers. One of the wheel assemblies is mounted in a housing which also encloses a heater, a fan, and baffles for directing gas from the fan across the heater and across the wafers to effect baking of the wafers. The other wheel assembly is maintained at room temperature and functions as a temporary storage and inverting apparatus for the wafers.
摘要:
A method and plant for thermally treating braking elements after a forming step, including a convective heating step at 150-300° C. and a infrared irradiation heating step, immediately in succession one relative to the other. A tunnel convection furnace is crossed by at least a first conveyor belt which translates along a first direction and on an upper face of which the braking elements are placed, is arranged laterally adjacent, with respect to the first direction, to an infrared heating tunnel furnace crossed by a second conveyor belt which translates along a second direction, parallel and opposite to the first one, and on an upper face of which the braking elements are placed. The first conveyor belt is larger than the second conveyor belt, and the braking elements appear in multiple side-by-side rows in a transverse and oblique direction with respect to the first and second directions. Robots placed at the opposite ends of the furnaces transfer the braking elements from the first conveyor belt to the second one or vice versa to a first end of the furnaces and place them on the first conveyor belt or second one to a second end of the furnaces being opposite to the first one, so as to change at will the sequence in which the infrared and convective heating steps are performed.
摘要:
Over for the burn-in of integrated circuits (12), comprising: a chamber (B) for receiving such circuits (12); first means (4), for heating such integrated circuits (12) in the chamber (B) with the circuits (12) fed with supply voltages; and control means for controlling the first means (4), including a computer (15) for monitoring power consumed by the circuits (12), the computer (15) being capable of storing information concerning the number of said circuits (12) and being adapted to provide from said power, a signal dependent on the mean power dissipation of the circuits (12): and in which oven the control means controls the heating of the circuits (12) in dependence on said signal. Also disclosed is an oven for the burn-in of integrated circuits (12), the oven comprising: a plurality of separate chambers (B) for receiving such circuits (12) to be burned-in with the circuits (12) fed with supply voltages; first means (4) for heating separately each of the chambers; and second means (6) for cooling separately each of the chambers with its circuits (12) therein, after they have been burned-in and with the circuits (12) still being fed supply voltages.
摘要:
A heat treatment apparatus is disclosed, which includes a tube device having a tube axis in the horizontal direction for receiving therein an object to be treated so as to treat the same by heat, a holding member for holding thereon a plurality of objects to be treated, first and second supporting devices located at one end outside of the tube device, a first coupling member for coupling the first supporting device with the holding member, a first operating member for moving the holding member in the horizontal direction, a second coupling member attached to the second supporting device for holding a holding portion of the holding member by shaft-rotation, and a second operating member for moving the holding member in the horizontal and vertical directions.
摘要:
A furnace for producing a secondary battery cathode material according to an exemplary embodiment of the present invention includes; a chamber of which the internal space is heated by a heater, a conveyer installed in the chamber and conveying a sagger containing raw material power of a cathode material of a secondary battery in one direction; and a gas supply nozzle and an exhaust port installed in the chamber. The chamber is divided into a front chamber, an intermediate chamber, and a rear chamber. The intermediate chamber has an inlet shutter and an outlet shutter for sealing the internal space thereof, and an exhaust port of the intermediate chamber is connected to an exhaust device for discharging gas.
摘要:
A reflow oven includes a chamber housing including surfaces that are in contact with heated air mixed with contaminants, including flux, and a water-soluble layer selectively applied to the surfaces of the chamber housing. Embodiments of the reflow oven include an acrylic-based layer, such as an acrylic paint. In one embodiment, the acrylic paint includes a water-soluble polymer, a polymer emulsion, and water. The water-soluble polymer includes butyl benzyl phthalate. In some embodiments, the acrylic paint includes 1-10% by weight butyl benzyl phthalate, 30-55% by weight acrylic polymer emulsion, and balance water. In a certain embodiment, the acrylic paint includes 1-5% by weight butyl benzyl phthalate, 35-50% by weight acrylic poly emulsion, and balance water. Methods of treating surfaces of the reflow oven are further disclosed.