Abstract: The method for resolving the stator having a coil disposed in the slots provided around an inner circumferential face of a cylindrical iron core and having an opening portion includes a step of enlarging the opening portion of the slot, and a step of extracting the coil from the slot.
Abstract: A stator for a motor includes a stator core, an insulator, and coils. The stator core includes an annular portion and teeth, which extend radially from the annular portion. The stator core is divided into core segments in the circumferential direction. Each core segment has an arcuate portion and one of the teeth, which extends from the arcuate portion. The insulator insulates each coil wound around one of the teeth from the stator core. The insulator includes coupling portions at positions corresponding to the circumferential ends of the arcuate portions. Each coupling portion couples the adjacent core segments to be rotatable relative to each other. The insulator facilitates manufacture of the stator.
Abstract: There is provided a method of manufacturing a probe card that electrically connects a testing device and a device under test to transmit a signal between the testing device and the device under test. The method includes the steps of forming a probe pin on a probe pin substrate, joining the probe pin held on the probe pin substrate to a circuit board, and cutting the probe pin to separate the probe pin substrate from the probe pin.
Abstract: Positioning recognition marks are read by movable recognition device for positioning objects to be bonded to each other. An alignment method includes a step of reading the recognition marks during movement of the recognition device before its complete stop, and a step of identifying absolute positions of the recognition marks by correcting the mark recognition positions having been read based on a position feedback signal of the moving recognition device. A mounting method using the alignment method is also disclosed. It is possible to maintain a high alignment accuracy, eliminate necessity of assuring a settling time for complete stop of the movable recognition device, and significantly reduce the alignment time and mounting tact.
Abstract: A vacuum controlled fixture is provided for positioning columns on sites of an electronic substrate. The fixture includes an internal chamber having spaced apart first and second surfaces extending beneath its principal face. A regular array of column receiving holes extends from the principal face through the first surface of the chamber, and a plurality of vacuum ducts extend from ports in the second surface of the chamber to a vacuum source to evacuate the internal chamber. The ports in the second face of the chamber are laterally offset from the receiving holes in the first face of the chamber to allow seating of the interior ends of the columns on coplanar portions of the rear surface. The ports are preferably centered, equidistant from the closest adjacent receiving holes, thereby providing centering of the columns by means of a vacuum driven air flow around the latter.
Type:
Grant
Filed:
December 1, 2004
Date of Patent:
November 13, 2007
Assignee:
International Business Machines Corporation
Inventors:
Yvan Ferland, Stephane Harel, Isabel De Sousa