Patent ID: 8011546
Filing Date: 2011-09-06
Classification: B28D,B65G,C03B,G02F,Y10T

Abstract:
1. A separation apparatus for separating a bonded brittle material substrate positioned on a table and comprising two brittle material substrates bonded at respective inner surfaces, the separation apparatus comprising: first and second scribing means for scribing front and rear surfaces, respectively, of a mother substrate made of a brittle material having an end which juts out from the table, the first and second scribing means being not coplanar and being provided on an upper side and a lower side of the mother substrate, respectively; and a first and second transferring means respectively comprising a sub-means configured for respectively transferring the first and second scribing means in a direction orthogonal to a direction of scribe lines formed by the first and second scribing means in scribing the front and rear surfaces such that during scribing a scribing position of the first scribing means can be different from a scribing position of the second scribing means, and comprising main means for respectively transferring the first and second scribing means with the sub-means, in a direction along the direction of the scribe lines, the orthogonal directions being substantially horizontal; wherein the main means of the first and second transferring means respectively comprise a guide bar along which the first and second scribing means with the sub-means are respectively transferred; wherein the first and second transferring means are configured such that during scribing, the first and second sub-means transfer the first and second scribing means orthogonally to the direction of movement of the main means while the main means transfer the first and second scribing means along the scribe line to cancel a skewed position of the mother substrate; the first and second scribing means each are configured to form a deep vertical crack during scribing along the scribe lines which reach the respective inner surfaces of the two brittle material substrates of the bonded brittle material substrate; and a capturing portion that moves linearly away from the substrate after separation without pivoting to remove a separated portion of the substrate.