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This study presents a high performance extended gate field effect transistor (EGFET)-based organophosphorus and carbamate microsensor for pesticide detection. A planar Ti/Ag/AgCl/KCl-gel micro reference electrode is also integrated into the same silicon chip. The total dimension of the proposed pesticide sensing system is only 1.3 cm × 1.1 cm. The implemented novel EGFET-based organophosphorus and...
Conventional flexural plate-wave (FPW) devices usually have high insertion loss, so we designed focus-type interdigital transducers (IDTs) that can effectively constrain launched wave energy, and adopted a focus-type silicon-grooved reflective grating structure (RGS) to reduce wave propagation loss. The results reveal that the proposed FPW devices have lower insertion loss (−38.698 dB). Then, we used...
A highly linear up-conversion mixer for 5–6GHz wireless local area network (WLAN) applications implemented using TSMC 0.18-μm standard complementary metal oxide semiconductor (CMOS) technology is presented. The feature of the proposed mixer is based on the double-balanced Gilbert cell with current-reused technique to enhance the third-order input intercept point (IIP3). Moreover, local oscillator...
This study presents a high power conversion gain (CG), excellent isolation and low power consumption receiver for wireless body sensor network application system utilizing TSMC 0.18 μm CMOS technology with chip size only 1.12 mm × 0.98 mm. The high gain and low power receiver which comprises variable gain low noise amplifier (VGLNA) and down-conversion mixer, the VGLNA with current-reused and RC feedback...
This study presents an extended gate field-effect transistor (EGFET) chloride ion-selective sensor with very low hysteresis and high sensitivity for the point-of-care testing (POCT) blood analysis. All of the manufacturing processes adopted in this work are compatible with standard planar technology; hence, they are very suitable for mass production. This work firstly investigates the influence of...
This study proposes a novel chip-level packaged planar Ti/Pd/Ag/AgCI/KCI-gel micro reference electrode for the electrochemical and biomedical sensing applications. The miniaturized reference electrode is constructed by two wafers ("Ti/Pd/Ag/AgCI quasi reference electrode wafer" and "KCI-gel cap sealing wafer") and with a total dimension of only 9 mm (L) × 6 mm (W) × 1 mm (H), hundredfold...
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