Patent ID: 8222562
Filing Date: 2012-07-17
Classification: B23K

Abstract:
1. A system for forming a plurality of cells on a mastering tool, comprising: a laser configured to emit a first laser light pulse having a first power level, and to emit a second laser light pulse having a third power level; a controller configured to operably communicate with the laser configured to generate a first signal having an amplitude that is based on a first amplitude value, the first amplitude value being one of a plurality of amplitude values associated with at least one of (i) a predetermined distribution of cell opening sizes within a range of cell opening sizes for the mastering tool and (ii) a predetermined distribution of position error distances for cells on the mastering tool within a range of position error distances, wherein the controller is further configured to generate a second signal having an amplitude that is based on a second amplitude value, wherein (i) the second amplitude value is one of a plurality of amplitude values associated with the predetermined distribution of cell opening sizes, and/or (ii) the second amplitude value is one of the plurality of amplitude values associated with the predetermined distribution of position error distances for cells on the mastering tool; and at least one of (i) a light attenuating device configured to receive the first laser light pulse and the first signal, the light attenuating device further configured to attenuate the first laser light pulse to a second power level in response to the first signal, such that the first laser light pulse forms a first cell having a first cell opening size at a first location on the mastering tool, wherein the light attenuating device is further configured to receive the second laser light pulse and the second signal, the light attenuating device further configured to attenuate the second laser light pulse to a fourth power level in response to the second signal such that the second laser light pulse forms a second cell having a second cell opening size at a second location on the mastering tool, and (ii) a light position shifting device operably coupled to a first device, the first device configured to adjust an operational parameter of the light position shifting device in response to the first signal, the light position shifting device configured to direct the first laser light pulse such that the first laser light pulse forms a first cell at a first location on the mastering tool after the operational parameter of the light position shifting device is adjusted in response to the first signal, wherein the light position shifting device further configured to direct the second laser light pulse such that the second laser light pulse forms a second cell at a second location on the mastering tool after the operational parameter of the light position shifting device is adjusted in response to the second signal.