Patent ID: 7732732
Filing Date: 2010-06-08
Classification: B23K,H05K

Abstract:
1. An apparatus for processing a multilayer printed wiring board, comprising: a laser source configured to emit a laser beam; a scanning head comprising a first scanning device configured to scan the laser beam in an X direction and a second scanning device configured to scan the laser beam in a Y direction; an X-Y table configured to hold a multilayer printed wiring board and move the multilayer printed wiring board in the X direction and the Y direction; an input unit configured to input a processing data including respective coordinates of a plurality of via holes to be formed in the multilayer printed wiring board; a camera configured to read positions of a plurality of positioning marks formed on a same interlayer resin insulator layer in an interior portion of the multilayer printed wiring board by detecting lights reflected by the positioning marks; an arithmetic operating unit configured to generate an error data based on errors of the multilayer printed wiring board measured from a target data for the positioning marks and the positions of the positioning marks read by the camera such that the errors caused by shrinkage of the multilayer printed wiring board are compensated and generate drive data including corrected coordinates of the via holes, respectively, based on the processing data and the error data; and a controlling unit configured to control at least one of the X-Y table and the first and second scanning devices based on the drive data so as to form the via holes through an interlayer resin insulator of the multilayer printed wiring board.