Browsing by Author "Chiu, HF"

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A novel 3.5-GHz microwave counter using an opto-electronic harmonic heterodyne technique
(1997-07-01)
Chang, CS
;
Chiu, HF
;
交大名義發表
;
光電工程學系
;
National Chiao Tung University
A novel 3.5-GHz microwave counter using an opto-electronic harmonic heterodyne technique has been demonstrated, The system's performance has been discussed and evaluated, and is viewed as good, in comparison with today's microwave-counting systems, It is believed that this novel device has potential for measuring signals above 100 GHz.
High-kappa Ir/TiTaO/TaN capacitors suitable for analog IC applications
(2005-07-01)
Chiang, KC
;
Huang, CC
;
Chin, A
;
Chen, WJ
;
McAlister, SP
We have developed novel high-k Ir/TiTaO/TaN capacitors which have high-capacitance density (10.3 fF/mu m(2)), small leakage current at 2 V (1.2 x 10(-8) A/cm(2)), and low voltage linearity of the capacitance (89 ppm/V-2). These excellent results meet the TTRS roadmap requirements for precision -analog capacitors for the year 2018. The good performance is due to the very high K (45) achieved in the TiTaO dielectric and the high work-function (5.2 eV) provided by the Ir electrode.
Very high-density (23 fF/mu m(2)) RF MIM capacitors using high-k TaTiO as the dielectric
(2005-10-01)
Chiang, KC
;
Lai, CH
;
Chin, A
;
Wang, TJ
;
Chiu, HF
A very high density of 23 fF/mu m(2) has been measured in RF metal-insulator-metal (MIM) capacitors which use high-kappa TaTiO as the dielectric. In addition, the devices show a small reduction of 1.8% in the capacitance, from 100 kHz to 10 GHz. Together with these characteristics the MIM capacitors show low leakage currents and a small voltage-dependence of capacitance at 1 GHz. These TaTiO MINI capacitors should be useful for precision RF circuits.