Abstract: A piezo actuator comprises a piezo material having a first, top surface, a second, bottom surface, and a third, circumference surface. The piezo material has a polarity and the piezo material includes one or more mounting holes in the piezo material, the one or more mounting holes being positioned substantially central in at least the top surface or the bottom surface of the piezo material. The actuator also comprises at least one contact point for contacting a load to be actuated, the at least one contact point being positioned on the third, circumference, surface of the piezo material, and a set of electrodes being positioned on the top surface of the piezo material and at least one electrode being positioned at the bottom surface of the piezo material.

Abstract: A piezo actuator comprises a piezo material having a first, top, surface, a second, bottom, surface, and a third, circumference, surface. The piezo material has a polarity and the piezo material Comprises one or more mounting holes in the piezo material, the one or more mounting holes being positioned substantially central in at least the top surface or the bottom surface of the piezo material. The actuator also comprises at least one contact point for contacting a load to be actuated, the at least one contact point being positioned on the third, circumference, surface of the piezo material, and a set of electrodes being positioned on the top surface of the piezo material and at least one electrode being positioned at the bottom surface of the piezo material.

Abstract: Devices and techniques that include use of a capacitive sensor to permit an OVJP print head to orient itself relative to conductive or dielectric traces on a printing substrate are disclosed. Such a sensor enables real-time measurement and closed-loop control of print head position with respect to substrate traces. This enables, for example, micron scale resolution in a dimension transverse to printing while permitting both the substrate and movement of the OVJP tool to scale to larger sizes than are achievable using conventional techniques and systems.