Microchip
AssigneeRohm Co., Ltd.
InventorsYoko Michiue, Youichi Aoki
Life of this patent
Estimating the term…
Abstract
A microchip is provided which includes a fluid circuit in which a first substrate having a groove provided on the surface of the substrate and a second substrate are bonded together. The fluid circuit includes at least a measuring portion for measuring the liquid and a flow path connected to one end of the measuring portion. The cross section of the measuring portion at the connecting position of the flow path and the measuring portion is shorter in length in the thickness direction of the microchip than the cross section of the flow path at the connecting position of the flow path and the measuring portion.
Claims15
A microchip having a fluid circuit therein and formed by bonding a first substrate having a groove provided on a surface of the substrate and a second substrate together, wherein
- said fluid circuit includes at least a measuring portion for measuring liquid and a flow path connected to one end of said measuring portion, and a length of a cross section of said measuring portion at a connecting position of said flow path and said measuring portion in a thickness direction of the microchip is shorter than a length of a cross section of said flow path at the connecting position of said flow path and said measuring portion in the thickness direction of the microchip.
A microchip including a first substrate having a groove on a surface and/or a through-hole that penetrates in a thickness direction and a second substrate laminated on said first substrate, and having a first fluid circuit made of a hollow portion composed of said groove and a surface of said second substrate on a side of said first substrate,
- wherein
- said first fluid circuit has a measuring portion for measuring liquid,
- said measuring portion includes:
- a measuring portion main body that is a chamber for measuring said liquid and includes an introducing inlet disposed at one end thereof for introducing said liquid and a discharging outlet disposed at the other end thereof for discharging said liquid,
- an opening that is made of the groove provided on the surface of said first substrate or the through-hole penetrating in the thickness direction;
- and
- a connecting flow path that connects said discharging outlet and said opening, and
- said measuring portion main body and said opening are disposed to oppose each other with said connecting flow path interposed therebetween.
Dependencies are inferred from the claim text.