METHOD FOR MANUFACTURING A MICROVALVE DEVICE MOUNTED ON A LAB-ON-A-CHIP, AND MICROVALVE DEVICE MANUFACTURED BY SAME

摘要

The present invention relates to a method for manufacturing a microvalve device for a lab-on-a-chip, which involves inserting a polyvinylidene chloride film into a gap between an upper substrate and a lower substrate which are formed by injection-molding a rigid polymer resin, and heating and pressing the resultant structure. The present invention also relates to a microvalve device manufactured by the method. The method for manufacturing a microvalve device mounted on a lab-on-a-chip according to the present invention is advantageous in that the upper and lower substrates are injection-molded using a rigid polymer material so as to enable mass production in a short amount of time, thermosetting characteristics between the polyvinylidene chloride film and the substrate are superior to form a rigid substrate/film membrane/rigid substrate structure in an easy and reliable manner, thereby shortening the time needed for manufacturing a microvalve device and enabling the mass production of labs-on-a-chip. In addition, the polyvinylidene chloride film has thermal contraction characteristics which prevent the film membrane from drooping and filling a fine structure during thermocompression-adhesion ,and thus enable the shape of the film membrane to be maintained and enable the film membrane to be curved by a vacuum, thereby enabling smooth opening/closing and sensitive operation. The polyvinylidene chloride film has low perviousness to fluid so as to prevent fluids present on and beneath the film membrane from mixing, and thus may be valuably used for a valve or a pump.