Patent ID: 8398866
Filing Date: 2013-03-19
Classification: B01F,Y10T

Abstract:
1. A method for manufacturing a microchip adapted to form an emulsion and having a first glass substrate, a second glass substrate and a silicon substrate provided between the first and second glass substrates, comprising: preparing the first glass substrate and the silicon substrate; bonding the first glass substrate with the silicon substrate; polishing the silicon substrate provided on the first glass substrate to ensure that the silicon substrate has a predetermined thickness; forming flow paths in the silicon substrate having the predetermined thickness by etching; and bonding the second glass substrate with the silicon substrate having the flow paths formed therein, wherein in forming the flow paths in the silicon substrate, a first fluid flow path through which a first fluid flows is formed in the silicon substrate, a second fluid flow path through which a second fluid that is not mixed with the first fluid flows is formed in the silicon substrate, and an emulsion formation flow path is formed in the silicon substrate to form an emulsion composed of the first fluid and the second fluid that is surrounded by the first fluid, the first fluid flow path has a plurality of branched flow paths that join at a joint portion, and the second fluid flow path has an edge portion that communicates with the joint portion.