Pattern generation with SLM imaging

Pattern generation founded on micro-mirror spatial light modulator (SLM) imaging presents a way to manage the decreasing feature sizes and increasing pattern complexities dictated by Moore's law. This paper identifies the critical elements of the imaging in the implementation of such a pattern generator. We show how the laser illumination, SLM chip, and optics collectively generate the image, and in particular, that these elements can be manufactured and integrated to specification. Expected deficiencies and variations in image quality are then effectively countered with calibration routines that bring final performance to within lithographic requirements, while also being manageable in design and turn-around-times.