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Method for covering a microfluidic assembly

  • US 20030029724A1
  • Filed: 07/30/2002
  • Published: 02/13/2003
  • Est. Priority Date: 01/30/2000
  • Status: Active Grant
First Claim
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1. A method for covering a set of open microchannel structures which are fabricated in the surface of a planar substrate and which comprise two or more part areas that have different characteristics, said surface being made of plastics and said method being characterized in that it comprises the steps:

  • (a) providing the substrate comprising the set of microchannel structures;

    (b) providing a lid-forming material having on one side an even layer of a thermoglue (such as a hot-melt adhesive);

    (c) applying the side of the material having the thermoglue against the surface carrying the microchannel structures to thereby also cover said microchannel structures;

    (d) heating the assembly created in step (c) to selectively liquefying the thermoglue while at the same time pressing the sheet material and the planar surface of the substrate together;

    (e) permitting the resulting laminate-covered microchannel structure to cool below the liquefying temperature of the thermoglue..

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