Sealing a microfluidic module by means of sealing film and sealing ridge

Abstract

A method for producing a sealed microfluidic module which has a module body and a sealing film sealing a microfluidic cavity in a surface of the module body has providing the module body having the microfluidic cavity in a surface thereof and a sealing ridge at least partially surrounding the microfluidic cavity and projects from the surface, providing the sealing film having a sealing layer and an outer layer, the sealing layer having a softening temperature below a sealing temperature and the outer layer having a softening temperature above the sealing temperature, and sealing the microfluidic cavity with the sealing film by bringing the sealing layer of the sealing film into contact with the surface of the module body and applying temperature and pressure to heat the sealing layer to the sealing temperature and to produce an adhesive bond between the sealing film and the module body.

Dependencies are inferred from the claim text.