US 8,263,025 B2 · Flow cell

Abstract

Ends (134a-1) of projections (134a) do not contact a first substrate (11), forming a gap between the ends (134a-1) and the first substrate (11). The internal capacity of a suction pump (17) can be increased by an amount by which the projections (134a) are shortened, compared to a conventional structure in which pillars are formed to connect the ceiling and bottom of the cavity of a capillary pump. The capacity of the suction pump (17) can be increased without enlarging the planar shape. Further, the ends (134a-1) of the projections (134a) do not contact the first substrate (11), forming a gap between them. An impurity can pass through the gap, and clogging of the inside of the suction pump (17) with the impurity can be prevented, realizing a stable operation.

Claims8

Dependent claims

A flow cell comprising:

a first substrate in which light is transmissive;
a second substrate which is disposed on said first substrate;
an opening which is formed in said second substrate;
a fluidic channel which is formed between said first substrate and said second substrate and has one end connected to the opening;
and a pump which is formed between said first substrate and said second substrate, is connected to the other end of the fluidic channel, and sucks, by a surface tension generated by said first substrate and said second substrate, a liquid that has reached the fluidic channel from the opening, wherein said pump includes a recess formed in at least one of said first substrate and said second substrate, and a plurality of pillars which stand upright in the recess, and the pillars do not contact either of said first substrate and said second substrate.

2 more elements

Dependencies are inferred from the claim text.

Flow cell

Life of this patent

Flow cell

Life of this patent

Abstract

Claims8