Yang F. – TechConnect Briefs

Field-Limited Digestive Ripening for Self-Organization of Thiol-Capped Gold Nanoparticles

Lin M.L., Yang F., Peng J.S., Hsu C-M, Lee S., National United University, TW

It is known that the nearly monodisperse gold particles of nanosizes could be prepared by using digestive ripening. Based on the assumption of charged particles, the model for expressing the digestive ripening has been proposed. [...]

Fracture-induced polymeric grating structures

Lin C.C., Yang F., Chin J.W., Sung L., Lee S., National Tsing Hua Univesity, TW

Fracture-induced structure (FIS)1 is found in the polymeric thin film sandwiched between two relatively rigid flat plates by inserting a razor blade at one edge. FIS is a potential candidate to be a low-cost and [...]

The influences of nanoscale titanium dioxide particle size and crystal structure on light absorbance

Zou M., Yang F., Ma J., Chen Y., Cao L., Liu F., Chinese Academy of Inspection and Quarantine, CN

Nanoscale titanium dioxide is an important physical sun-block material and is widely used in sunscreen. In our test, the influences of the particle size and crystal structure on light absorbance were examined. The experiment shows [...]

Diffusion Induced Stresses in Microstructures of MEMS

Yang F., University of Rochester, US

The diffusion-induced stresses in silicon wafers were studied. The effect of local electric field on dopant diffusion was considered in the diffusion equation. Only one-dimension problem with a constant surface dopant concentration was investigated. The [...]

Finite Element Analysis of MEMS Diaphragm Valves

Yang F., Kao I., SUNY-Stony Brook, US

Based on simple plate theory, the deflection of MEMS microvalve is studied analytically and numerically. The critical load to initially drive the microvalve is found to be proportional to the pre-deflection of microdiaphragm. The microdiaphragm [...]

Analysis of Pressure Balanced MEMS Valves

Yang F., Kao I., SUNY-Stony Brook, US

Based on simple plate theory and the Bernoulli equation, the effect of fluid flow on the deformation of fluid driven MEMS diaphragm microvalve is investigated analytically and numerically. The static instability of such a microsystem [...]