A thin film valve includes at least one chamber for storing a fluid required for biological/chemical analysis, a plurality of chamber for performing a biological/biochemical reaction, or connecting, at least one chamber performing the biological or biochemical reaction to enable a movement of the fluid flow, a flow path arranged to communicate with the hole on the flow path, a thin film closing membrane for closing the fluid hole, a thin film valve including the hole and the fluid hole closing membrane, a multilayered plurality of substrates forming the fluid path, the fluid hole and the chamber, a rotatable disk forming the fluid path, fluid hole, the plurality of chambers, a heat generator, laser beam generator heating the thin film valves, a light detector for detecting amount of light passing through the membrane and closing the fluid hole, and a feedback controller for controlling the focusing actuator.