Patent ID: 7667160

Claim:
A multilayer printed wiring board manufacturing apparatus comprising: a processing laser source configured to emit a laser beam; a plurality of scanning heads configured to deflect the laser beam in X-Y directions; a beam splitter positioned between the processing laser source and the plurality of scanning heads and configured to direct the laser beam emitted from the processing laser source to each of the plurality of scanning heads; an X-Y table configured to hold a multilayer printed wiring board having at least one target mark and at least one interlayer resin layer which covers the at least one target mark; a camera configured to measure a position of the at least one target mark of the multilayer printed wiring board by detecting light reflected by the at least one target mark being covered with the at least one interlayer resin layer; and a control apparatus having an input section to which processing data of the multilayer printed wiring board is input, and an arithmetic operating section configured to correct the processing data based on the position of the at least one target mark and generate drive data for controlling at least one of the X-Y table and the scanning heads to apply the laser beam to form a hole in the at least one interlayer resin layer of the multilayer printed wiring board, wherein the control apparatus controls one of the scanning heads to apply the laser beam to the multilayer printed wiring board to form the hole and controls the rest of the scanning heads to direct the laser beam toward outside the multilayer printed wiring board.