An object of the present invention is to provide a stamper for transferring fine pattern and a method for manufacturing the stamper, the stamper has a fine structure layer to improve a continuous transferring property of the resinous stamper, and to allow accurate and continuous transferring. Heating units comprising a substrate and a solid fuel capable of undergoing an exothermic metal oxidation reaction disposed within the substrate are disclosed. The flow rate-adjusting portion constituting the valve is provided so as not to close the fluid passages when no load is applied and bends so that its one surface side projects when no load is applied and becomes deformed in a direction in which the fluid passage is closed when receiving pressure of the viscous fluid on its one surface side. This FePO4 is synthesized with a lithium compound to obtain LiFePO4.