A main body of an image forming apparatus has an image forming section to which a sheet is fed from an optional sheet deck when it is coupled to the main body. The example of the medium has a recording layer containing a three dimensionally cross-linked polymer matrix including an epoxy resin, a radically polymerizable monomer, and a photo radical polymerization initiator. Various approaches are provided in which a master is used to coordinate with the multiple caches to cause a data item to be written to persistent storage. Exemplary active anchors include a reversibly inflatable balloon, a deflectable tip, a suction cup, a screw, and a barb. A degas process is performed, wherein the semiconductor structure is exposed to a first gas, and wherein the semiconductor structure is heated from the backside and from the frontside.