Patent ID: 6682295
Filing Date: 2004-01-27
Classification: H01L,Y10S

Abstract:
An alignment device for aligning a flatted object to a desired planar and angular orientation, the flatted object having a substantially circular perimeter and a flatted chord portion, the alignment device comprising:a base; a first conically shaped centering roller, for contacting the circular perimeter of the flatted object, rotationally mounted to the base on a vertical roller axis, the first centering roller including a bottom and a top, the bottom having a circular perimeter with a diameter greater than the top; a second conically shaped centering roller, for contacting the circular perimeter of the flatted object, rotationally mounted to the base on a vertical roller axis, the second centering roller including a bottom and a top, the bottom having a circular perimeter with a diameter greater than the top, the first and second centering rollers being mounted at fixed locations on the base such that the circular perimeters of the bottoms of the first and second conical rollers are substantially tangential to a desired location for the circular perimeter of the flatted object when the flatted object is in the desired planar and angular orientation; and at least one conically shaped rotational alignment roller, for contacting the flatted chord portion of the flatted object, rotationally mounted to the base on a vertical roller axis, the at least one rotational alignment roller including a bottom and a top, the bottom having a circular perimeter with a diameter greater than the top, the at least one rotational alignment roller being mounted at a fixed location such that the circular perimeter of the bottom of the at least one rotational alignment roller is substantially tangential to the flatted chord portion of the flatted object when the flatted object is in the desired planar and angular orientation and the flatted object is in the desired planar orientation only when the flatted object is also in the desired angular orientation.