Patent ID: 9679897
Date: 2017-06-13
CPC Classifications: B01L,H01L

Claim:
1. A nanofluidic structure comprising: a semiconductor substrate; a dielectric layer positioned above and in contact with the semiconductor substrate; a first reservoir defined by the semiconductor substrate and the dielectric layer; a second reservoir defined by the semiconductor substrate and the dielectric layer, the second reservoir spaced apart from the first reservoir; a plurality of bottom passage fins protruding from the semiconductor substrate, the bottom passage fins extending from the first reservoir to the second reservoir; a plurality of top passage fins above and spaced apart from the bottom passage fins, the top passage fins extending from the first reservoir to the second reservoir, the top passage fins include a silicon layer and a hardmask layer positioned over and in contact with the silicon layer; and first nanofluidic passages connecting the first reservoir and the second reservoir, each of the first nanofluidic passages includes a bottom wall, a top wall and sidewalls, the bottom wall defined by a respective one of the bottom passage fins, the top wall defined by a respective one of the top passage fins, and the sidewalls defined by the dielectric layer.