Radiant Technologies Precision Multiferroic Test System

2018/01/18

Radiant Technologies, Inc CURRENT NEWS
Since its inception in 1988, Radiant Technologies, Inc. has been dedicated to innovative and creative uses of Ferroelectric and Multiferroic technologies and products. Radiant pioneered and developed the first ferroelectric test system which quickly became the worldwide industry standard for characterizing nonlinear materials. Precision and accuracy has been the driving force behind the engineering of our test equipment and thin film ferroelectric capacitors. Vision Data Management Software, which accompanies Radiant’s test systems, allows researchers the simplicity, power and flexibility to take experiments to the next level. Vision allows week-long testing capabilities with automatic data acquisition, storage, plotting, and data export. Vision dramatically reduces previously time intensive processes.
We are thrilled to announce the following new products to researchers expanding their capabilities for testing of thin film and bulk ceramic devices.
Precision Multiferroic Test System
The Precision Multiferroic Tester is the most advanced Ferroelectric/Multiferroic Tester on the market. The Multiferroic’s unique frequency rating is 250KHz@10V, 100KHz@30V, 100KHz@100V, 100KHz@200V, and 5KHz@500V (can be expanded to 10KV). The Multiferroic offers extremely high resolution 2MHz 18-bit ADCs. The Multiferroic is also ideal for magnetoelectric testing.

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Key Features of the Multiferroic Test Systems

18 bit resolution at 2MHz capture rate and 16 bit 10 MHz StimulusHysteresis Period 30s to 4μsMaximum resolution greater than 5 millicoulombs. At 10 volts, this is the charge generated by a 500 microfarad capacitorPUND pulse delay 100μs -42000sFatigues using an internal waveform generator at 2.5MHz1pA current resolution measuring DC leakage(1)Radiant’s test systems execute hysteresis, pulse, leakage, IV, and CV measurements without changing sample connections. With the addition of extra fixtures, the units can measure pyroelectric properties, magneto electric properties, transistor characteristics, cryogenic properties, and bulk and/or thin film piezoelectric properties.

(2)Vision Data Management Software is provided with Radiant's test systems. Vision is the only software package available for ferroelectric testers that provides exceptional freedom to design, conduct and review all procedures associated with any material experiment.

(3)Vision’s programmability allows data to be collected and processed significantly faster than manually executing tests, thus saving thousands of man hours in test time.

Magneto Bundle for Thin Films and Bulk Ceramics

Radiant offers a complete package of equipment to support those measurements. The package includes the Radiant Current Source which can supply up to +/-2 amps at +/-30 volts up to 20 Hz. It will includes an embedded current sensor to connect to the SENSOR input of the Radiant tester for capturing real- time current flow throw magnetic coils. The instrument provides two external I2C controlled voltage sources for driving independent power supplies to establish multidirectional DC magnetic fields across the sample during magnetoelectric testing. The equipment package also includes a Lakeshore MH-6 Helmholtz coil capable of 53 Oersted fields at its center and sample shield boxes for bulk and thin. Interface with various DC Magnets quoted upon request.

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Radiant & Lake Shore Rapidly Characterize Ferroelectric Devices over Variable Temperatures

Ferroelectric materials are used in a wide variety of applications, including sensors, ferroelectric memory (FeRAM), MEMs devices, actuators, and photovoltaics. Rapid assessment of ferroelectric device characteristics is critical to improving ferroelectric materials processing as well as developing accurate ferroelectric device models. The combination of Radiant ferroelectric test solutions and Lake Shore probe stations offers researchers a flexible platform to efficiently characterize multiple devices in a cryogenic probing environment. The addition of cryogenic temperature characterization can open new frontiers to understanding dielectric properties, switching mechanisms, and fatigue in ferroelectric materials.

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Precision Nano Displacement Test Sensor (PNDS)

Radiant’s Precision Nano Displacement Sensor is a cost effective, compact, tabletop displacement sensor capable of measuring the surface displacements of piezoelectric thin films and the actuator displacements of piezoelectric MEMs.Derived from the extremely sensitive Atomic Force Microscope architecture, the PNDS is the inexpensive solution for measuring thin film properties. The PNDS provides measurement capability to submicron electrode dimensions with vertical resolution better than an Angstrom.

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New e31 Test Fixture

The e31 test fixture allows tester customers to determine the e31 coefficient for their films. The tester drives the cantilever capacitor with a hysteresis measurement while capturing the displacement of the cantilever tip with a displacement sensor. The e31 fixture yields a -13C/m2 coefficient. The results are inserted into a derivation of the Stoney formula to calculate e31.

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