Patent ID: 9423242
Filing Date: 2016-08-23
CPC Classification: G01B

Claim Text:
1. A board-warping measuring method for measuring a device under test, the device under test being disposed on a measuring carrier, the board-warping measuring method comprising: projecting a pattern onto the device under test, wherein the pattern comprises a plurality of reference points; capturing a measurement image by an image-capturing module when the pattern is projected onto the device under test, wherein the measurement image comprises a plurality of measurement points respectively corresponding to the reference points; calculating a position of each of the measurement points in the measurement image by a processor for utilizing a transfer function corresponding to each of the reference points to obtain position heights of the device under test corresponding to the measurement points; and generating a board-warping compensation image corresponding to the device under test by the processor based on the position heights of the device under test corresponding to the measurement points so as to compensate for board warping of the device under test.