Patent ID: 8429821
Filing Date: 2013-04-30
Classification: B01L,F16K,Y10T

Abstract:
1. A method of fabricating a valve unit, the method comprising: forming a lower substrate comprising a channel including a first region and a second region which is deeper than the first region and is adjacent to one side of the first region; forming an upper substrate comprising a valve material chamber which extends only partially through the upper substrate; after the forming of the upper substrate, filling the valve material chamber with a valve material and curing the valve material in the valve material chamber; attaching a surface of the upper substrate in which the valve material chamber is formed to a surface of the lower substrate in which the channel is formed, so that the valve material chamber overlaps an overlapped portion of the first region, and does not overlap a non-overlapped portion of the first region; melting the valve material accommodated in the valve material chamber to flow the valve material into the non-overlapped portion of the first region; and curing the valve material flowed into the non-overlapped portion to close the first region.