Improved performance of Si-based spiral inductors

Chen, Tung-Sheng; Deng, Junjun; Lee, Chih-Yuan; Kao, Chin-Hsing

doi:10.1109/lmwc.2004.834552

Cited by 12 publications

(1 citation statement)

References 10 publications

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“…Numerous research work has been carried out to fabricate planar coils on silicon [27][28][29]. However, these coils on silicon have some disadvantages: e.g.…”

Section: Design and Fabrication Of Planar Receiver Coilsmentioning

confidence: 99%

Wirelessly powered electrowetting-on-dielectric (EWOD) by planar receiver coils

Byun

Yuan

Yoon

et al. 2015

J. Micromech. Microeng.

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Electrowetting-on-dielectric (EWOD) is one of the most versatile methods used to control the wettability of liquids using electrical input. In most applications, EWOD is applied using physical wiring, which may restrict its application to implantable EWOD devices. In order to resolve this issue, we have studied and developed a wirelessly powered EWOD by using planar coils at the receiver that are fabricated out of a printed circuit board (PCB) by means of standard micro photolithography. Unlike conventional, bulky, spool coil type, the planar coil type lends itself to compact design and easy integration with EWOD chips. The present wireless powering principle is based on magnetic induction, which is very efficient when the transmitter and receiver coils are close to each other. The voltage obtained at the receiver is much higher than typically required EWOD voltages (>50 V) using a high transmission frequency (~MHz). The span of the EWOD contact angle is over 40°. In addition, amplitude modulation (AM) is implemented in the present wireless powering setup, followed by demodulation, in order to oscillate droplets at low frequency. This technique ensures smooth and reliable droplet movements. The wirelessly powered EWOD is used to transport a droplet and is mounted in a mini-boat which it powers and propels.

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“…Numerous research work has been carried out to fabricate planar coils on silicon [27][28][29]. However, these coils on silicon have some disadvantages: e.g.…”

Section: Design and Fabrication Of Planar Receiver Coilsmentioning

confidence: 99%