A method and apparatus provide an integrated circuit package with improved heat dissipation and easier fabrication. The present invention solves the above objects by providing a porous crystalline saccharide having a number of pores, a process for producing the same, comprising the step of keeping hydrous crystalline saccharide at an ambient temperature or higher in an organic solvent for the dehydration, and the use thereof. The stacking unit is raised by the raising unit and is lowered when the sheet storage unit is drawn out. The dynamic bias circuit can include an error amplifier, the error amplifier generating the gain stage bias voltage responsive to the current source feedback voltage.