A passive pump consisting of integrated vertical capillaries has been developed for a microfluidic chip as an useful component with an excellent flow volume and flow rate. A fluidic chip built into a passive pump was used by connecting the bottoms of all the capillaries to a top surface consisting of a thin layer channel in the microfluidic chip where the thin layer channel depth was smaller th...

Nanometric cutting of single crystal silicon on the different crystal orientations and at a wide range of temperatures (300 K-1500 K) was studied through molecular dynamics (MD) simulations using two sorts of interatomic potentials, an analytical bond order potential (ABOP) and a modified version of Tersoff potential, so as to explore the cutting chip characteristics and chip formation mechanis...

A visual cutting chip control system is designed to automatically adjust feed rate in order to maintain constant surface roughness in ball-end milling. The proposed visual control system has a modular structure, consisting of an optical vision system (OVS), an adaptive cutting chip size-control loop for a feed servo and a surface roughness in-process prediction model. The OVS is employed to acq...

Die-level thinning, handling, and integration of singulated dies from multi-project wafers (MPW) are often used in research, early-stage development, prototyping flexible devices. There is a high demand for thin silicon devices several applications, such as electronics. To address this demand, we study novel post-processing method on two devices, an electrochemical impedance sensor, Complementa...

Secure hardware systems are threatened by adversarial attempts on integrated circuit (IC) chips in a practical utilization environment. This article provides overviews of physical attacks cryptographic circuits, associated vulnerabilities an IC chip, and protection schemes the vertical unification systems, packaging technologies. The design principles on-chip monitoring circuits to sense attack...

The suppression of the regenerative chatter phenomenon in turning process via the variation of the frequency and amplitude of the spindle motor excitation is carried out in this research. A programmable inverter is employed for variable periodic excitation of the spindle motor. A set of turning experiments is designed and performed on a number of conical work pieces both in constant spindle spe...