Patent ID: 7824630

Claim:
A method comprising: aligning a target chip including a plurality of DNA probe sites with an ejector array comprising a plurality of ejectors arranged in plural groups of ejectors each group of ejectors for each respective DNA probe site having plural ejectors therein; each group of ejectors is coupled to a corresponding reservoir containing a DNA base material and each ejector comprises a Self Focusing Acoustic Transducer (SFAT) to focus waves using constructive interference; and ejecting a first set of DNA base materials from a group of ejectors using corresponding Self Focusing Acoustic Transducers (SFATs) of one of the groups of ejectors in the ejector array onto the DNA probe sites, wherein the SFATs in each group of ejectors are configured to operate responsive to an actuation, as a group, to eject one of a plurality of DNA base materials onto one of the plurality of DNA probe sites.