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The worldwide first 100MHz dynamic oxide semiconductor RAM (DOSRAM) is successfully demonstrated using a new high-mobility crystalline In-Ga-Zn-O (IGZO) material. The new IGZO exhibits around two times carrier mobility of conventional IGZO, while still achieving an extremely low off-state leakage (Ioff) at ∼10−21A (zA) level. Attributed to DOSRAM performance improvement, 100MHz normally-off (Noff)...
A 6Gb/s 9.8pJ/b rotatable non-contact connector applicable to robot arms is developed. The proposed rotatable transmission line coupler (RTLC) has a wide bandwidth at all rotation angles. An interface bridge IC is also developed to transfer a wide range of interface signals from slow legacy ones to high-speed ones. The proposed system improves power efficiency by a factor of 3.7, space efficiency...
A 65-nm Silicon-on-Thin-Box (SOTB) embedded SRAM is demonstrated. By using back-bias (BB) control in the sleep mode, 13.72 nW/Mbit ultra-low standby power is observed, which is reduced to 1/1000 compared to the normal standby mode. The measured read access time with forward BB is 1.84 ns at 1.0 V overdrive and 25°C, which is improved by 60% and thus we achieved over 380 MHz operation. Up to 20% active...
A method for on-chip extraction of random telegraph noise (RTN) parameters from transistors is proposed. Exploiting the nature of exponential distributed RTN events, the proposed circuit enables the automatic extraction of mean RTN time constants from a large array of small-area transistors. The on-chip data processing provides a simplified measurement infrastructure, reduces the measurement time...
In this paper we deeply investigate the dependence of BTI with transistor scaling. Unlike PBTI, NBTI is strongly enhanced in narrow devices like Nanowire or Finfet. We clearly prove by means of 3D electrostatic simulations that it is due to a defect density at the Sidewall (SW) of the transistor about 2.5 times higher than the one at the Top Surface (TS).
This paper highlights a 14nm Analog and RF technology based on a logic FinFET platform for the first time. An optimized RF device layout shows excellent Ft/Fmax of (314GHz/180GHz) and (285GHz/140GHz) for NFET and PFET respectively. A higher PFET RF performance compared to 28nm technology is due to a source/drain stressor mobility improvement. A benefit of better FinFET channel electrostatics can be...
RF-CMOS process employing 14nm FinFET technology is introduced for the first time and its RF performance is characterized. Compared with its 28nm planar counterpart, the optimized 14nm RF FinFET consumes 63% of DC power with 53% of device active area and 3.8 times higher intrinsic gain (gm/gds). Based on the 14 nm technology, VNCAP with higher cap density (8%) and Q-factor (23%) is also verified for...
Self-heating effect (SHE) has become a significant concern for device performance, variability and reliability co-optimization due to more confined layout geometry and lower-thermal-conductivity materials adopted in advanced transistor technology, which substantially impacts the integrated circuit (IC)'s design schemes. In this work, a new methodology for evaluation of SHE in both digital and analog...
A new methodology to measure the product-like AC stress of metal critical peak current was implemented in 16nm High-K Metal Gate (HKMG) FINFET process. Traditional TLP tester can only generate minimum 1ns pulse width stress, which is still in thermal diffusion metal burn out regime. The proposed method can generate minimum pulse width of 100ps stress waveform through on-die tunable pulse-width generator...
A novel BSC circuit with tunable current starved buffers demonstrates higher sensitivity, scalability & accurate statistical characterization of radiation-induced SET pulse waveforms & flip-flop SER in 14nm tri-gate CMOS, thus enabling improved SER estimation & analysis for a range of supply voltages including NTV.
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