Microchip
First Claim
1. A microchip in whicha flow channel groove is formed in a surface of at least one of two resin substrates;
- the two resin substrates are joined with a face facing inward where the flow channel groove is formed;
in at least either one of the two resin substrates, a through-hole of an almost circularly cross-sectional shape leading to the flow channel groove from a face of an opposite side to the face where the two resin substrates are joined is formed; and
in the face of the opposite side, a protrusion protruding in a thickness direction of the resin substrate provided so as to surround the through-hole is formed,wherein the microchip in which a space having an almost circularly cross-sectional shape concentric with the through-hole and a depth in the same direction as the thickness direction of the resin substrate is formed on a joint face of one of the two resin substrates or the other resin substrate which is the joint face in the case where the protrusion is projected from an almost perpendicular direction to the joint face,and when a base end side edge of the through-hole is projected on the joint face from the almost perpendicular direction, a relationship of φ
c>
φ
a is satisfied, provided that a diameter of the base end side of the through-hole is designated as φ
a and a diameter of an end edge side of the space making contact with the joint face is designated as φ
c.
6 Assignments
0 Petitions
Accused Products
Abstract
A flow path groove is formed in the surface of at least one of two resin substrates; the two resin substrates are joined with the surface in which the flow path groove is formed facing inward; a through-hole having a substantially round cross section is formed in either one of the two resin substrates such that the through-hole connects with the flow path groove from the surface opposite the surface where the two resin substrates join; protruding parts, which protrude in the direction of thickness of the resin substrates and are disposed enclosing the through-hole, are formed in the surface on the opposite side; a space, which has a substantially round cross-sectional shape concentric with the through-hole and has depth in the same direction as the direction of thickness of the resin substrates, is formed in the joined surfaces when the protruding parts are projected from the direction substantially perpendicular to the joined surfaces; and the correlation of fc>fa is satisfied when the edges on the base end side of the through-hole are projected onto the joined surfaces from a substantially perpendicular direction, where the diameter on the base end side of the through-hole is fa and the diameter on the end edge side of the space touching the joined surfaces is fc
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Citations
7 Claims
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1. A microchip in which
a flow channel groove is formed in a surface of at least one of two resin substrates; -
the two resin substrates are joined with a face facing inward where the flow channel groove is formed; in at least either one of the two resin substrates, a through-hole of an almost circularly cross-sectional shape leading to the flow channel groove from a face of an opposite side to the face where the two resin substrates are joined is formed; and in the face of the opposite side, a protrusion protruding in a thickness direction of the resin substrate provided so as to surround the through-hole is formed, wherein the microchip in which a space having an almost circularly cross-sectional shape concentric with the through-hole and a depth in the same direction as the thickness direction of the resin substrate is formed on a joint face of one of the two resin substrates or the other resin substrate which is the joint face in the case where the protrusion is projected from an almost perpendicular direction to the joint face, and when a base end side edge of the through-hole is projected on the joint face from the almost perpendicular direction, a relationship of φ
c>
φ
a is satisfied, provided that a diameter of the base end side of the through-hole is designated as φ
a and a diameter of an end edge side of the space making contact with the joint face is designated as φ
c. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification