MICROFLUIDIC SYSTEM WITH SINGLE DRIVE SIGNAL FOR MULTIPLE NOZZLES

摘要

The present disclosure is directed to a microfluidic die that includes a plurality of heaters above a substrate, a plurality of chambers and nozzles above the heaters, a plurality of first contacts coupled to the heaters, and a plurality of second contacts coupled to the heaters. The plurality of second contacts are coupled to each other and coupled to ground. The die includes a plurality of contact pads, a first signal line coupled to the plurality of second contacts and to a first one of the plurality of contact pads, and a plurality of second signal lines, each second signal line being coupled to one of the plurality of first contacts, groups of the second signal lines being coupled together to drive a group of the plurality of heaters with a single signal, each group of the second signal lines being coupled to a remaining one of the plurality of contact pads.

主权项

1. A device, comprising:
a microfluidic die having a first number of electrical contacts; a support substrate, the microfluidic die coupled to the support substrate, the support substrate including:
a second number of electrical contacts, the first number of electrical contacts being coupled to the second number of electrical contacts, the second number of electrical contacts being less than the first number of electrical contacts.