Patent ID: 8535789

Claim:
A microchip plate comprising: a first substrate and a second substrate which are bonded to each other through an adhesive layer, the second substrate including a flow path formed on the side facing the first substrate, wherein the first substrate and the second substrate are each formed of a cycloolefin polymer (COP) or a cycloolefin copolymer (COC), wherein the adhesive layer is formed of paraffin or naphthene and includes at least one of additives selected from a group consisting of an adhesion auxiliary material, a polymer constituting each of the first substrate and the second substrate, and a macromonomer, the paraffin or naphthene being a main component of the adhesive layer and having a concentration greater than that of the macromonomer that is in a range of less than 30% by weight, wherein a number average molecular weight of each of the paraffin and the naphthene is in the range of 100 to 1000, and the paraffin or the naphthene exhibits adhesiveness for bonding the first and second substrate, and wherein the paraffin or the naphthene diffuses between polymer chains of the COP or polymer chains of the COC to activate a molecular chain of a polymer surface of the COP or the COC.