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Yusuf Leblebici

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Related publications (405)

Vertically-stacked gate-all-around polysilicon nanowire FETs with sub-μm gates patterned by nanostencil lithography

Yusuf Leblebici, Jürgen Brugger, Giovanni De Micheli, Michail Zervas, Andreea Veronica Savu, Davide Sacchetto, Shenqi Xie

We report on the top-down fabrication of vertically-stacked polysilicon nanowire (NW) gate-all-around (GAA) field-effect-transistors (FET) by means of Inductively Coupled Plasma (ICP) etching and nanostencil lithography. The nanostencil is used to form sub ...

Elsevier2012

Fabrication and characterization of wafer-level deep TSV arrays

Yusuf Leblebici, Michail Zervas, Yüksel Temiz

Three Dimensional (3D) integration, based on through silicon vias (TSV), has the potential to become a key enabling technology for many applications. TSVs are commonly categorized according to their aspect ratio and diameter. An equally important parameter ...

IEEE2012

A 3D Stacked Multi-Core Processor Platform with Improved Testability

Yusuf Leblebici, Panagiotis Athanasopoulos, Alessandro Cevrero, Giulia Beanato, Paolo Giovannini

2012

Power and Area Efficient MOSFET-C Filter for Very Low Frequency Applications

Yusuf Leblebici, Seyed Armin Tajalli

New circuit design techniques for implementing very high-valued resistors are presented, significantly improving power and area efficiency of analog front-end signal processing in ultra-low power (ULP) biomedical systems. Ranging in value from few hundreds ...

Springer Verlag2012

Impact Ionization and Carrier Multiplication in Graphene

Yusuf Leblebici, Luca Pirro

We develop a model for carrier generation by impact ionization in graphene, which shows that this effect is non-negligible because of the vanishing energy gap, even for carrier transport in moderate electric fields. Our theory is applied to graphene field ...

American Institute of Physics2012

Polarity Control in Double-Gate, Gate-All-Around Vertically Stacked Silicon Nanowire FETs

Yusuf Leblebici, Giovanni De Micheli, Michele De Marchi, Davide Sacchetto, Jian Zhang, Pierre-Emmanuel Julien Marc Gaillardon

We fabricated and characterized ambipolar Silicon Nanowire (SiNW) FET transistors featuring two independent Gate-All-Around (GAA) electrodes and vertically stacked SiNW channels. One of the gate electrodes is exploited to dynamically select the polarity of ...

2012

High-Level Energy Estimation in the Sub-VT Domain: Simulation and Measurement of a Cardiac Event Detector

Yusuf Leblebici, Omer Can Akgun

This paper presents a flow that is suitable to estimate energy dissipation of digital standard-cell based designs which are determined to operate in the subthreshold regime. The flow is applicable on gate-level netlists, where back-annotated toggle informa ...

2012

Hardware Implementation of an Omnidirectional Camera with Real-Time 3D Imaging Capability

Alexandre Schmid, Yusuf Leblebici, Pierre Vandergheynst, Luigi Bagnato, Laurent Jacques, Hossein Afshari

A novel hardware implementation of an omnidirectional image sensor is presented which is capable of acquiring and processing 3D image sequences in real time. The system consists of a hemispherical arrangement of a large number of CMOS imagers, connecting t ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2011

Optimal Logic Architecture and Supply Voltage Selection Method to Reduce the Impact of the Threshold Voltage Variation on the Timing

Christian Piguet, Yusuf Leblebici, Bahman Kheradmand Boroujeni

2011

Design Methods and Tools for 3D Integration

Yusuf Leblebici, Giovanni De Micheli, David Atienza Alonso, Vasileios Pavlidis

The design of 3-dimensional integrated circuits requires new specialized tools, methods and flows. Whereas some tools are on the market and some design flows for standard ICs are extended to handle die stacking and through-silicon vias, much R&D has still ...

2011

Characterization and physical modeling of endurance in embedded non-volatile memory technology

Alexandre Schmid, Yusuf Leblebici, Davide Garetto

Transient and endurance mechanisms in highperformance embedded non-volatile memory flash devices are investigated in detail. An extraction methodology combining measurements on equivalent transistors and flash cells is proposed to discriminate the effects ...

2011

Low-Power and Widely-Tunable Linearized Biquadratic Low-Pass Transconductor-C Filter

Yusuf Leblebici, Seyed Armin Tajalli

A sixth-order low-pass

g_m

-C filter with a very wide tuning range (

f_c

= 100 Hz to 10 MHz) is presented. The wide tuning range has been achieved without using switchable components or programmable building blocks. A single stage folded-cascode transcon ...

Institute of Electrical and Electronics Engineers2011

AC analysis of defect cross sections using non-radiative MPA quantum model

Alexandre Schmid, Yusuf Leblebici, Davide Garetto

A multiphonon-assisted model included in a Poisson-Schroedinger solver has been applied for the calculation of the capture/emission trapping rates of Si/SiO2 interface defects and their dependence with respect to the trap energy and depth in the oxide. The ...

2011

A fully on-chip LDO voltage regulator with 37 dB PSRR at 1 MHz for remotely powered biomedical implants

Catherine Dehollain, Alexandre Schmid, Yusuf Leblebici, Kanber Mithat Silay, Vahid Majidzadeh Bafar

This article presents a fully on-chip low-power LDO voltage regulator dedicated to remotely powered wireless cortical implants. This regulator is stable over the full range of alternating load current and provides fast load regulation achieved by applying ...

Springer US2011

Amplitude modulation based readout for very dense active microelectrode arrays

Alexandre Schmid, Yusuf Leblebici, Neil Joye

A readout method which is suitable for high-density active microelectrode arrays used in electrophysiology experiments is presented. Amplitude modulation of consecutive channels enables simultaneous recording and transmission of the signals recorded on mul ...

2011

Area, throughput, and energy-efficiency trade-offs in the VLSI implementation of LDPC decoders

Yusuf Leblebici, Alessandro Cevrero, Christoph Studer, Andreas Peter Burg

2011

Ambipolar silicon nanowire FETs with stenciled-deposited metal gate

Yusuf Leblebici, Jürgen Brugger, Giovanni De Micheli, Andreea Veronica Savu, Davide Sacchetto

We report on a fully CMOS compatible fabrication method for ambipolar silicon nanowire FinFETs. The low thermal budget processing, compatible with monolithic 3D device integration, makes use of low pressure chemical vapor deposition (LPCVD) of amorphous Si ...

Elsevier2011

A 16-channel 220 µW neural recording IC with embedded delta compression

Alexandre Schmid, Yusuf Leblebici, Vahid Majidzadeh Bafar

A 16-channel neural action potential recording IC suitable for large-scale integration with multi-electrode arrays (MEAs) is presented. A closed-loop gain of 60 dB in the action potential band is achieved by cascading differential gain-stages utilizing a n ...

2011

New Insight on Bio-sensing by Nano-fabricated Memristors

Yusuf Leblebici, Giovanni De Micheli, Davide Sacchetto, Sandro Carrara

We report here on a new insight for bio-sensing based on the memristive effect of functionalized Schottky-barrier memristive silicon nanowire in dry environment. The device concept is discussed. Electrical measurements confirm the bio-detection by the narr ...

2011

A silicon model of the inner hair cell

Yusuf Leblebici

In this paper we present an electrical model of the inner hair cell based on an improved mathematical model. The model is implemented in silicon in the current domain using translinear circuits. It improves on previous models by taking into consideration t ...

2011

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