Abstract:

To achieve the test and diagnosis solution for digital microfluidic biochip, the test and diagnosis process is modeled, and the corresponding diagnosis test cost is computed. The test and diagnosis cost is analyzed by the tools of Matlab, and some important observations are obtained: Firstly, with the increase of the number of subarrays divided for parallel testing, the test and diagnosis cost nearly does not change at all. In other words, the number of subarrays has less impact on the test and diagnosis cost. Secondly, as the faulty probability of the single biochip cell increases, the test and diagnosis cost increases dramatically. In addition, in the process of the diagnosis, the faulty domain must be diagnosed according to the corresponding faulty probability until all the faults are located. The test and diagnosis cost of the last faulty location is the maximum, dominating the total test and diagnosis cost of the biochip. These observations provide the theory evidence and guidance for digital microfuidic biochip test and diagnosis.

Key words: digital microfluidic biochip;biochip array;test and diagnosis;test cost