Patent ID: 6909073
Filing Date: 2005-06-21
Classification: B01J,B01L

Abstract:
1. A method of performing a biological test, comprising applying a biological fluid to an integrated device including: a) a semiconductor body having a first portion, a second portion, and a mid-portion positioned between the first and second portions; b) a hydraulic circuit including an inlet fluidly connected to a buried channel positioned in the first portion of the body, fluidly connected to an outlet positioned in the second portion of the body; c) a heating element positioned in the first portion of the body and thermally linked to the buried channel; d) a heat dissipator positioned in the mid-portion of the body and thermally linked to the outlet to substantially block propagation of heat from the heating element to the second portion of the body; and e) a sensing electrode positioned in the outlet; whereby said biological fluid is tested in the buried channel and the results of the test are sensed at the sensing electrode.