Abstract: The removal of ceramic material from the interior of cast metallic components is accomplished in a closed system. A vessel within the system is filled with a chemical leaching fluid that immerses the cast component having the ceramic material and/or ceramic cores therein. The leaching fluid is superheated and boiling is controlled by varying the pressure within the closed system without changing the molecules in the vessel.

Abstract: A solder bonding system that includes a substrate having a recess and a conductive pad having a width. The conductive pad is disposed in the recess of the substrate. The solder bonding system also includes a solder pad contacting the conductive pad. The solder pad has a width greater than the width of the conductive pad. When the solder pad is heated, it forms a stable solder bond between the conductive pads.

Abstract: A microelectronic connection component is provided with leads having a surface wettable by a bonding material such as a solder at the tips of the leads which are intended to be bonded with microelectronic devices. The leads have non-wettable surfaces bounding the wettable surfaces. During bonding, the non-wettable surfaces confine liquid bonding material such as liquid solder and prevent the liquid bonding material from spreading along the leads.

Abstract: A method of pressure bonding a bumped electronic part using: a tilting mechanism which tiltably supports a suction tool for sucking a bumped electronic part; and locking means for inhibiting a tilting operation of the tilting mechanism. The method includes: a suction step of sucking the bumped electronic part to the suction tool; a step of detecting the position of the bumped electronic part which is sucked to the suction tool, and positioning the bumped electronic part with respect to a substrate, under a state where the tilting operation is inhibited; and a pressure bonding step of pressure bonding bumps of the bumped electronic part which is sucked to the suction tool, to the substrate under a state where the tilting operation is enabled. According to this arrangement, the tilting mechanism is not accidentally swung during the positioning operation, and hence the mounting accuracy is prevented from being impaired.

Abstract: In a wire bonding apparatus that includes an air-blower connected to a compressor via an electromagnetic valve so as to provide a bonding wire with back tension by blowing air to the bonding wire, a preparatory tank which can store air is installed between the air-blower and the electromagnetic valve so as to avoid abrupt fluctuations or periodic fluctuations of the air supplied to the air-blower.