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Heat-reduction methods and systems related to microfluidic devices

  • US 7,332,130 B2
  • Filed: 02/17/2004
  • Issued: 02/19/2008
  • Est. Priority Date: 02/14/2001
  • Status: Expired due to Term
First Claim
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1. An integrated microfluidic system comprising a microfluidic device, the system comprising:

  • a first substrate having a first side;

    a second substrate having a first side and an opposing second side;

    a third substrate having a first side;

    wherein (a) the respective first sides of the first and second substrates abut one another and (b) the second side of the second substrate and the first side of the third substrate abut one another and further wherein the respective first sides of the first and second substrates comprise therebetween a microfluidic complex having a heating region, the heating region including a heating surface;

    a heating element between the first side of the second substrate and the second side of the second substrate and separated from fluid present within the heating region by a portion of the second substrate, the heating element configured to provide heat to the heating region through the heating surface; and

    a conductive lead for supplying electric current from a current source to the heating element, the conductive lead being substantially more conductive than the heating element so as to reduce heat emitted by the conductive lead.

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