Patent ID: 7423764
Filing Date: 2008-09-09
Classification: G01B

Abstract:
1. An integrated interference scanning method, which is used to integrate a VSI (vertical scanning interferometry) height data array measured by performing vertical scanning interferometry and a PSI (phase shifting interferometry) height data array measured by performing phase shifting interferometry, the integrated interference scanning method comprising the following steps: scanning an object to be measured through an interference scanning system having a wideband light source, and obtaining scanned information; performing the VSI to measure the VSI height data array based on the scanned information; performing the PSI to measure the PSI height data array of relative to a position of a zero-light-path-difference based on the scanned information; and executing an integration calculation of the VSI height data array and the PSI height data array based on a slope correction factor and a displacement correction factor calculated from the VSI height data array and the PSI height data array.