Yi-Lin Tsai

A 400MHz 10Mbps D-BPSK receiver with a reference-less dynamic phase-to-amplitude demodulation technique

A 400MHz 10Mbps differential BPSK (D-BPSK) receiver (RX) is presented. This RX adopts a proposed reference-less dynamic phase-to-amplitude demodulation scheme, which converts signal phase transition to distinct amplitude variation. The proposed RX can support a data rate up to 10Mbps. It achieves -63dBm sensitivity at 0.1% BER and draws 1.77mW in 0.18μm CMOS.

Fabrication Process of Integrated Multi-Analyte Biochip System for Implantable Application

This paper presents the integration of the fabrication processes for an implantable multi-analyte biochip system. The implantable biochip system has a microfluidic channel in which an electrochemical biosensor and a dielectrophoresis (DEP) micropump are fabricated by surface micromachining. The enzyme-based biosensor consists of three electrodes and detects the glucose level instantaneously by utilizing glucose oxidase (GOD). The DEP force resulting from the four-phase voltage exchange of the interdigitated electrodes drives the blood flow in the microchannel. By utilizing the MEMS fabrication and the electric circuit design, a compact implantable biochip system is achieved.

A 330-µW 400-MHz BPSK Transmitter in 0.18- µm CMOS for Biomedical Applications.

An energy-efficient 400-MHz binary phase-shift keying (BPSK) transmitter (TX) is proposed for biomedical applications in this brief. The BPSK signal is generated by edge-combining multiple phases from a low-frequency voltage-controlled oscillator (VCO), which avoids power-hungry local oscillator generation at RF. Furthermore, the output matching network and edge combiner are merged into a power amplifier (PA), leading to a hardware-efficient and low-power design. Fabricated in a 0.18-

LMS-based digital background linearization technique for VCO-based delta-sigma ADC

\mu\mbox{m}

Self-Aligned Stylus with High Sphericity for Micro Coordinate Measurement

CMOS process, the proposed TX consumes 330

A current feedback instrumentation amplifier with chopping and dynamic element matching techniques and employing the current-reuse technique in input/feedback stages

\mu\mbox{W}

An energy-efficient differential-BPSK transceiver for IoT applications

and delivers −15-dBm output power. The modulator operates at 0.8 V, and PA operates at 0.2-V supply voltage. The TX can support a data rate up to 20 Mb/s, achieving an energy efficiency of 14.9 pJ/bit. The measured error vector magnitude at 20 Mb/s is 10%.

SU-F-T-621: Impact of Vacuum and Treatment Couch On Surface Dose in Stereotactic Body Radiation Therapy With and Without a Flattening Filter

This paper presents a digital background linearization technique for VCO-based delta-sigma ADC. The nonlinearity of the VCO in the main ADC is mitigated with the aid of the reference OP-based delta-sigma ADC and the digital least-mean square (LMS) correction algorithm. The reference ADC provides sufficient linearity performance as the calibration reference to form an inverse transfer function of the nonlinear voltage-to-frequency characteristic while the LMS-based calibration scheme shortens the correction time to reduce energy consumption. The simulated SFDR/SNDR of 70.2 dB/62.7 dB over a bandwidth of 10 MHz is achieved, which is 23.3 dB/16.6 dB better than the SFDR/SNDR of uncalibrated ADC. A prototype first-order VCO-based ADC is designed in 90-nm CMOS process and dissipates 2.89 mW from a supply voltage of 1.2 V.

SU-F-T-587: Quality Assurance of Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiation Therapy (SBRT) for Patient Specific Plans: A Comparison Between MATRIXX and Delta4 QA Devices

This paper presents a mask-free fabrication of styluses with high sphericity for micro coordinate measurement machine (muCMM), a mechanical system using micro-scale contact probes to measure the profile of high-aspect-ratio micro-structures. This new process combines micro-pellet and stylus into one mechanical device. The micro-pellets are self-configured inside aqueous environment in which the surface tension deforms the pellets into prefect spheres. Stylus arrays were patterned by self-aligned waveguides. This process enables the center of the micro-sphere to accurately coincide with the longitudinal axis of stylus and hence the Abbe error for the muCMM can be significantly reduced.

5.3 A 2-channel −83.2dB crosstalk 0.061mm 2 CCIA with an orthogonal frequency chopping technique

This paper presents a high-precision low-noise amplifier intended to be used in the front-end of an analog signal processing channel in sensor applications. A current feedback instrumentation amplifier (CFIA) with current-reuse (CR) topology employed chopping techniques to eliminate flicker (1/f) noise and offset due to amplifier, and the gain mismatch issue due to CR topology was solved by dynamic element matching (DEM) technique. This work was fabricated in a 0.35-µm CMOS TSMC process. After chopping the Gm1-Gmfb and Gm2 stages of CR-CFIA with 10kHz frequency, the input-referred noise power spectral density (PSD) was under 100nV/√Hz higher than 10kHz. The PSD effectively decreases below 100Hz. The gain of this system was 13. Total current supply was only 66.6µA. Total power consumption for analog block was 199.8µW under a 3-V supply and the core chip size was 0.81mm2 (total area 3.01mm2).