Patent ID: 9539575
Date: 2017-01-10
CPC Classifications: B01J,B01L,B23K,B29C,B29K,B29L,B32B

Claim:
1. A method of forming seals around a plurality of wells of a reaction plate, the wells being defined by a plurality of apertures in a planar surface of the reaction plate through which each well receives a reagent and/or a sample that is subject to one or more reactions while confined and sealed within the reaction plate, wherein the reaction plate comprises apertured plastics material having a flat planar surface and at least one aperture extending from the flat planar surface towards the reaction plate's other side, each well having a volume of 200 microliters or less, the method comprising the step of attaching a plastics film to the planar surface of the reaction plate by forming seals around the apertures in the planar surface of the reaction plate for sealing the reagent or sample within the wells, using near-infrared diode laser welding to form each well seal, wherein the plastics film comprises polypropylene and has a thickness of 120 micrometers or less.