Value chain restructuring and R&amp;D portfolio management: the effects of system-on-chip integration on the semiconductor and electronics industries

Dasher, Richard B.

doi:10.1504/ijtm.2002.003038

Cited by 5 publications

(4 citation statements)

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“…Here κ is the Debye-Hückel parameter. (11) in which ε r is the relative permittivity of the conducting liquid and ε 0 is the permittivity of a vacuum. Once the electric potential distribution is known, the ionic net charge density due to zeta potential can be obtained through the relationship ρe = −2 ψ (12) When an external electric field, E x , is applied, the external electric filed interacts with these net charges within the double layers and creates an electroosmotic body force on the bulk of the conducting liquid.…”

Section: Comparison Of Theoretical Analysis and Micro-piv Measurementmentioning

confidence: 99%

“…Here κ is the Debye-Hückel parameter. (11) in which ε r is the relative permittivity of the conducting liquid and ε 0 is the permittivity of vacuum. Once the electric potential distribution is known, the ionic net charge density due to the zeta potential can be obtained through the relationship ρe = −2 ψ (12)…”

Section: Comparison Of Theoretical Analysis and Micro-piv Measurementmentioning

confidence: 99%

“…However, non-mixing in microchannels can be very useful as well. Because only diffusion occurs between different streams of flow, it is used for extraction or separation in biological analysis [10,11]. Diffusion-based microfluidic devices, such as the T-sensor R and the H-filter R , have been developed for commercial use by Micronics, Inc. [12].…”

Section: Introductionmentioning

confidence: 99%

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Interface control of pressure-driven two-fluid flow in microchannels using electroosmosis

Wang

Gao

Nguyen

et al. 2005

J. Micromech. Microeng.

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This paper presents an experimental investigation of the pressure-driven two-fluid flow in microchannels with electroosmosis effect. Two fluids, aqueous NaCl solution and aqueous glycerol were introduced by syringe pumps to flow side by side in a straight microchannel. The external electric field was applied on the NaCl side. Under the same inlet volumetric flowrate condition, the applied electric field was varied. The interface position between the two fluids with the electroosmosis effect was studied in the first part of the experiment using fluorescence imaging technique. In the second part, the velocity field was measured using micro-PIV technique. The parameters, flowrate and electric field, which affect the interface position and velocity field were investigated. The measured velocity field from the experiment agrees well with that of theoretical analysis.

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Section: Comparison Of Theoretical Analysis and Micro-piv Measurementmentioning

confidence: 99%

Section: Comparison Of Theoretical Analysis and Micro-piv Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Interface control of pressure-driven two-fluid flow in microchannels using electroosmosis

Wang

Gao

Nguyen

et al. 2005

J. Micromech. Microeng.

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“…9 Considering diffusive dispersion, Wu and Nguyen 10 used hydrodynamic focusing to control the width and the position of a liquid stream, and this mode of mass transfer was used for extraction and separation in biological species. 11,12 Biological fluid and aqueous reagent, which pose different physical properties, were used in these applications. 13 In the past, interface control and flow focusing were realized in an open-loop manner by hydrodynamic or electrokinetic mean.…”

Section: Introductionmentioning

confidence: 99%

Microfluidic on-chip fluorescence-activated interface control system

Nguyen

Wong

et al. 2010

Biomicrofluidics

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A microfluidic dynamic fluorescence-activated interface control system was developed for lab-on-a-chip applications. The system consists of a straight rectangular microchannel, a fluorescence excitation source, a detection sensor, a signal conversion circuit, and a high-voltage feedback system. Aqueous NaCl as conducting fluid and aqueous glycerol as nonconducting fluid were introduced to flow side by side into the straight rectangular microchannel. Fluorescent dye was added to the aqueous NaCl to work as a signal representing the interface position. Automatic control of the liquid interface was achieved by controlling the electroosmotic effect that exists only in the conducting fluid using a high-voltage feedback system. A LAB-VIEW program was developed to control the output of high-voltage power supply according the actual interface position, and then the interface position is modified as the output of high-voltage power supply. At last, the interface can be moved to the desired position automatically using this feedback system. The results show that the system presented in this paper can control an arbitrary interface location in real time. The effects of viscosity ratio, flow rates, and polarity of electric field were discussed. This technique can be extended to switch the sample flow and droplets automatically.

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An innovation knowledge game piloted by merger and acquisition of technological assets: A case study

Tsai

Hsieh

2006

Journal of Engineering and Technology Management

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Value chain restructuring and R&D portfolio management: the effects of system-on-chip integration on the semiconductor and electronics industries

Cited by 5 publications

References 0 publications

Interface control of pressure-driven two-fluid flow in microchannels using electroosmosis

Interface control of pressure-driven two-fluid flow in microchannels using electroosmosis

Microfluidic on-chip fluorescence-activated interface control system

An innovation knowledge game piloted by merger and acquisition of technological assets: A case study

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