Radivoje Popovic

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Publications associées (48)

Integrated Magnetic Angle Sensors

Radivoje Popovic, Pavel Kejik, Mirjana Banjevic

2008

Semiconductor device for measuring ultra small electrical currents and small voltages

Radivoje Popovic, Marc Lany

A semiconductor device for measuring ultra low currents down to the level of single electrons or low voltages comprises a first and a second voltage supply terminal (1, 2), an input terminal (3) for receiving an electrical current or being supplied with a ...

2008

On performance of series connected CMOS vertical hall devices

Radivoje Popovic, Mirjana Banjevic

Series connected (stacked) CMOS vertical Hall devices were analyzed on the basis of performance of a single five contacts device biased at different common mode voltages with respect to the substrate. The uneven influence of junction field effect on residu ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2008

Counting single electrons in a CMOS circuit

Radivoje Popovic, Marc Lany

We describe a device compatible with CMOS technology, which permits to detect a single charge by multiplying it to an easily measurable level. The device is a bipolar transistor optimized for the operation in the Geiger avalanche mode. A single electron, i ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2008

Electron counting at room temperature in an avalanche bipolar transistor

Giovanni Boero, Radivoje Popovic, Marc Lany

We report on real-time detection of single electrons inside a n-p-n bipolar junction transistor at room temperature. Single electrons injected through the base-emitter junction trigger with a high probability the avalanche breakdown of the strongly reverse ...

2008

Horizontal HALL devices: A lumped-circuit model for EDA simulators

Radivoje Popovic, Predrag Drljaca

A completely scalable lumped-circuit model for horizontal HALL devices is presented therein that can be efficiently implemented in SPICE-like EDA simulators. The model has been employed for the quantitative analysis of: (a) geometrical, (b) temperature, an ...

2008

Purely CMOS Angular Position Sensor Based on a New Hall Microchip

Radivoje Popovic, Pavel Kejik

This paper presents a new technique to sense the direction of the magnetic field, enabling a new generation of contactless 360 degrees absolute angle encoders. The sensor consists of a microchip that contains a special ring-shaped Hall element. It is the f ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2008

Magnetic field sensor for measuring direction of a magnetic field in a plane

Radivoje Popovic, Pavel Kejik

A magnetic field sensor for measuring a direction of a magnetic field in a plane comprises a sensing structure (4) comprising a ring-shaped well (10), a plurality of contacts (11) of equal size placed at equal distance from each other along the ring-shaped ...

2008

Microfabricated solenoids and Helmholtz coils for NMR spectroscopy of mammalian cells

Florian Maria Wurm, Pierre-André Besse, Radivoje Popovic, Franck Vincent, Martin Jordan, Mathieu Benjamin Stettler, Klaus Ehrmann

NMR-microprobes based on solenoids and Helmholtz coils have been microfabricated and NMR-spectra of mammalian cells have successfully been taken. The microfabrication technology developed for these probes consists of three electroplated copper levels for l ...

2007

An orthogonal fluxgate-type magnetic microsensor with electroplated Permalloy core

Radivoje Popovic, Pavel Kejik, Ozge Zorlu

In this paper, we present a new microfabricated orthogonal fluxgate sensor tructure. The sensor consists of an electroplated copper excitation rod surrounded by an electroplated Permalloy layer and has planar pick-up coils for signal detection. The use of ...

Elsevier2007

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