A DCDC converter configurable for operating as a multiphase DCDC. The embedded MRAM is formed on a number of metal-interposed-in-interlayer dielectric layers, which each include metal dispersed therethrough and are formed on top of the access transistor. The last optical element defines an exit surface of the projection objective, which is arranged at a working distance from the image plane. Optical systems of the present invention have device geometries and configurations, such as form factors, component densities, and component positions, accessed by printing that provide a range of useful device functionalities.