Patent ID: 9452407
Filing Date: 2016-09-27
CPC Classification: B01F,B01J,B23K,F28D,F28F

Claim Text:
1. A method of making a laminated device, comprising: providing a first thin strip having a length-to-width aspect ratio of at least 10 and a length of at least 5 cm; providing a second thin strip having a length-to-width aspect ratio of at least 10 and a length of at least 5 cm; placing the first and second strips on a first substrate in a stack so that the strips lie within the same plane wherein the plane is perpendicular to thickness; placing a second substrate on the first and second strips; and bonding the first and second strips into the stack such that the strips form walls of a microchannel, and the first and second substrates form opposing walls of the microchannel, and the distance between the strips varies by less than 0.5 mm over the length of the strips; wherein the bonding is conducted using gradual heating and cooling under at least one of the following conditions: heating and cooling at a rate of 1° C. per minute or less; or heating and cooling the stack through a thermal cycle of at least 18 hours.