The puprose of this study was to evaluate retention force of conical double crowns in two material connections: gold casting alloy/gold casting alloy and gold casting alloy/gold electroforming alloy. 12 crown pairs of both material connections with the cone angles of 2°, 4° and 6° were made. Experiment of 10.000 in-and-out cycles was performed using a new device which allows the retentive force...

Low-power and high-density electronic synapse is an important building block of brain-inspired systems. The recent advancement in memristor has provided an opportunity to advance electronic synapse design. However, a guideline on designing and manipulating the memristor's analog behaviors is still lacking. In this work, we reveal that compliance current (Icomp) of electroforming process played ...

Recent microfabrication technologies based on LIGA (German acronym for Li thographe, Galvanoformung, und Abformung) have been applied to build high-aspect-ratio, metallic or dielectric, planar structures suitable for highfrequency rf cavity structures. The cavity structures would be used as parts of linear accelerators, microwave undulators, and mm-wave amplifiers. The microfabrication process ...

This paper reports a novel actuating design that uses the shear deformation of a piezoelectric actuator to deflect a bulge-diaphragm for driving an array microdroplet ejector. In essence, we employed a circular-shaped actuator poled radial direction with remnant polarization normal to the actuating electric field for inducing the piezoelectric shear effect. The array microdroplet ejector consis...

Abstract We developed a physical model to fundamentally understand the conductive filament (CF) formation and growth behavior in switching layer during electroforming process metal-oxide-based resistive random-access memories (RRAM). The effects of electrode oxide properties on CF morphology evolution, current-voltage characteristic, local temperature, electrical potential distribution have bee...

The measurement of the apparent contact angle on structured surfaces is much more difficult to obtain than smooth because pinning liquid roughness has a tremendous influence three phase line. results presented here clearly show an variation along Accordingly, not only one value for can be provided, but distribution or interval given characterize wetting behavior. For measuring regularly surface...