Electrical & Electrochemical Characterisation in Bangladesh

Electrical & Electrochemical Characterisation from CH Instruments, Jandel Engineering and Lake Shore, supplied, installed and supported in Bangladesh by Vvon Technologies.

49 products from 3 manufacturers: CH Instruments, Jandel Engineering, Lake Shore.

Products

• Model 400C Series Time-resolved Electrochemical Quartz Crystal Microbalance (EQCM) — CH Instruments: The 400C series pairs a quartz crystal microbalance with a potentiostat so mass change at the electrode is recorded alongside potential, current and charge. It is used for metal deposition, ion transport in polymer films and biosensor studies. Models 400C to 440C are offered, the 440C adding a galvanostat.
• Model 600F Series Potentiostat/Galvanostat — CH Instruments: The 600F series is a general purpose electrochemical workstation containing a fast function generator, dual channel data acquisition, a potentiostat and, on selected models, a galvanostat. It covers voltammetry, pulse techniques, corrosion and impedance work. Models run from the basic 600F to the 660F workstation.
• Model 700F Series Bipotentiostat — CH Instruments: The 700F series is a general purpose bipotentiostat and galvanostat for experiments needing two controlled working electrodes, such as rotating ring disk electrode work and dual channel detection. Used as a single channel instrument it matches the 600F series. Models range from the 700F to the 760F.
• Model 800D Series Electrochemical Detector — CH Instruments: The 800D series is built for electrochemical detection, monitoring current through a flow cell in liquid chromatography or flow injection analysis. Its low noise circuitry measures down to picoamperes and plots three decades of current scale during a run. The 8x2D models add a bipotentiostat for dual channel work.
• Model 920D Series Scanning Electrochemical Microscope (SECM) — CH Instruments: The 920D scanning electrochemical microscope combines a bipotentiostat with a three dimensional nanopositioner, cell and sample holder to map chemical reactivity near surfaces. Modes include SECM imaging, probe scan and approach curves, surface interrogation SECM and surface patterned conditioning.
• Model 1000D Series Multi-potentiostat — CH Instruments: The 1000D series is an eight channel potentiostat that can drive eight independent cells or eight working electrodes sharing one reference and counter electrode. Each channel has its own on or off state, potential and sensitivity setting, and channels can sweep or step together with the primary channel.
• Model 1100D Series Power Potentiostat/Galvanostat — CH Instruments: The 1100D series is a power potentiostat and galvanostat for work needing large current and high compliance voltage, such as battery testing, corrosion, electrolysis and electroplating. It uses a four electrode configuration and still resolves current down to tens of picoamperes. The 1140D adds a galvanostat.
• Model 1200C Series Handheld Potentiostat/Bipotentiostat — CH Instruments: The 1200C series is a hand held potentiostat and bipotentiostat for electroanalysis and sensor studies. It draws power from the USB port of the host computer, so no adapter or battery is needed, which suits field work and teaching laboratories. Potentiostat and bipotentiostat versions are offered.
• Model 1400 Series 4-Channel Potentiometer/Potentiostat — CH Instruments: The Model 1400 combines a four channel potentiometer with a four channel potentiostat, so open circuit sensors such as ion selective electrodes can be read at the same time as amperometric or voltammetric sensors. It is aimed at electrode array characterisation and real time cell metabolism sensing.
• CHI1550A Series Pico Liter Solution Dispenser — CH Instruments: The CHI1550A dispenses picolitre droplets to build high density solution arrays for chemical, biological and medical work. It combines a three dimensional positioner, a piezoelectric jetting device and a sample platform, with software for binary, ternary and quaternary array patterns.
• Jandel RM3000+ Test Unit — Jandel Engineering: The RM3000+ is Jandel's constant current source and digital voltmeter for four point probe measurement. It covers the widest range of the Jandel test units and is the unit supplied with the General Purpose, Wafer and Multipurpose systems. Readings are given in sheet resistance or volume resistivity.
• Jandel ResTest Test Unit — Jandel Engineering: The ResTest is a constant current source and digital voltmeter with a colour screen. It shows readings directly in millivolts, sheet resistance and volume resistivity, and stores results on board or straight to a memory stick, which suits routine production checks.
• Jandel HM21 Test Unit — Jandel Engineering: The HM21 is Jandel's compact four point probe test unit with six switched constant current settings. It is the unit paired with the Hand Applied Probe in the Portable Probing System, so measurements can be made away from the laboratory bench.
• Jandel Multiheight Four Point Probe Stand — Jandel Engineering: The Multiheight Probe Stand raises and lowers the probe mechanism so samples from thin films to large ingots can be measured on one stand. It is Jandel's most popular stand and its base carries four mounting holes for accessories such as an eight inch wafer table.
• Jandel Multiheight / Microposition Probe Stand — Jandel Engineering: This version of the Multiheight stand adds a micrometer controlled X-Y stage for small samples. Four screws release the stage, so the same stand returns to handling large wafers and ingots without further adjustment.
• Jandel Multiposition Wafer Probe Stand — Jandel Engineering: The Multiposition Probe Stand is built for wafer measurement, with indexed rotation and linear travel that return the probe to the same points run after run. Two sizes are offered at the same cost, the smaller one being easier for placing small wafers on the table.
• Jandel Microposition Probe Stand — Jandel Engineering: The Microposition Probe Stand is for small samples and printed lines where the probe has to be placed accurately. Micrometer slides move the sample under the probe and the sample can also be rotated through a full turn.
• Jandel Universal Probe Station — Jandel Engineering: The Universal Probe Station handles both four point probe and three point spreading resistance measurements. All four needles are adjustable for load and can be replaced by the user, and an X-Y stage gives fine movement for targeting small samples.
• Jandel Hand Applied Probe — Jandel Engineering: The Hand Applied Probe rests directly on the sample rather than being held above it, which avoids the reading drift seen with fully handheld methods. It measures thin layers, wafers and large ingots, but the strong downward force rules out fragile unsupported samples.
• Jandel cylindrical four point probe — Jandel Engineering: The cylindrical four point probe head fits Jandel probe stands, some OEM mapping systems and equipment made by Four Dimensions. The plain cylindrical body also suits customers building their own probe mount, and a mounting adapter is offered.
• Jandel Alessi Compact Probe — Jandel Engineering: The Compact Probe is made for Veeco FPP5000 and FPP100 equipment and also fits GRQ tools. It replaces the square bodied probe heads originally made by Alessi. Some Veeco tools take the cartridge with lead instead, so the tool should be confirmed before ordering.
• Jandel Veeco Cartridge with Lead — Jandel Engineering: The cartridge with lead probe head is made for use on customer built equipment, some Veeco tools, and installations that previously used an A and M Fell style probe. Other Veeco tools take the Compact Probe instead.
• Napson — Jandel Engineering: This cartridge probe with a 4 pin connector is made for Napson equipment such as the RT70 and RT3000, and for older Keithley Omega tools. Jandel manufactures it, but it is sold only through Napson and their authorised representatives.
• Napson Miniature — Jandel Engineering: The miniature cartridge with positioning key is made for older Napson and Kokusai equipment. It closely resembles the AIT cartridge probe, so the target tool should be confirmed before ordering. It is built to the same mechanical tolerances as the rest of the Jandel probe range.
• AIT — Jandel Engineering: The miniature cartridge probe for AIT equipment fits tools named SR1000N, SR2000N and similar. Its tapped mounting holes also make it a practical choice for customers building their own probe holder. It resembles the Napson miniature cartridge closely, so the two should not be confused.
• CDE ResMap — Jandel Engineering: This cartridge with a 6 way connector is made to suit Creative Design Engineering systems such as the ResMap 168 and ResMap 178. It carries a distinctive black nosepiece because the similar KLA Tencor Prometrix head is not interchangeable with it.
• KLA-Tencor-Prometrix — Jandel Engineering: This cartridge with a 6 way connector is made to suit KLA, Tencor and Prometrix systems such as the RS55, RS75 and RS100. It looks similar to the CDE head but the two are not interchangeable, so care is needed where both tools are on site.
• Jandel Very Close Spacing probe — Jandel Engineering: The very close spacing probe has 0.5 mm needle spacing for measurements taken close to the edge of a sample or on very small samples. The finer needles it uses call for more careful handling than a standard spacing probe.
• Jandel Macor four point probe — Jandel Engineering: The Macor probe is built for high and low temperature measurement. In an oven it works from about 80 K to 600 K, and if only the sample is heated it can be used up to 1000 K, though prolonged contact should be avoided. It is not jewel guided.
• Jandel High Vacuum four point probe — Jandel Engineering: This version of the cylindrical probe is prepared for vacuum service. It is unanodised, blind holes are removed where possible, connections are crimped rather than soldered and a ruby ball is used for the insulation pad.
• Jandel custom probes — Jandel Engineering: Jandel builds probes to customer specification where a catalogue head will not do. Three, four, five and six point probes have been produced, and the company invites enquiries about other configurations.
• PS-100 Tabletop Probe Station — Lake Shore: The PS-100 is a tabletop cryogenic probe station for electrical measurements on samples held at a controlled temperature. A 2-stage flow cryostat cooled by liquid helium or liquid nitrogen gives a base temperature of 4.3 K. It ships as a standard, fully specified configuration for device and materials testing.
• TTPX Cryogenic Probe Station — Lake Shore: The TTPX is an entry-level cryogenic probe station for non-destructive electrical measurements on devices and materials. A 2-stage flow cryostat cooled by liquid helium or liquid nitrogen takes the sample stage to a base temperature of 4.3 K, with control up to 475 K. It accepts up to six probe arms.
• CPX Cryogenic Probe Station — Lake Shore: The CPX is a cryogenic probe station built around a split flow cryostat with independent flow control of the sample and the radiation shields. Sample temperatures reach 1.6 K with the PS-VLT-CPX option, with control up to 475 K. It is used for electrical measurements on devices and materials at low temperature.
• CPX-VF Cryogenic Probe Station — Lake Shore: The CPX-VF is a cryogenic probe station with a vertical field superconducting magnet that applies up to +/-2.5 T perpendicular to the sample plane. The liquid helium cooled cryostat reaches a base temperature of 4.3 K, or 1.9 K with the PS-LT option. It is used for electrical measurements in an applied field.
• CRX-4K Cryogenic Probe Station — Lake Shore: The CRX-4K is a cryogen-free cryogenic probe station cooled by a 2-stage closed cycle refrigerator, so no liquid cryogens are needed. Sample temperatures reach a base of 4.5 K with two probe arms installed, with control up to 350 K. It is used for electrical measurements on devices and materials.
• CRX-6.5K Cryogenic Probe Station — Lake Shore: The CRX-6.5K is a general purpose cryogen-free probe station cooled by a 2-stage closed cycle refrigerator with 3 W of cooling power at 10 K. It removes the need for liquid cryogens and controls the sample stage from 8.5 K to 350 K. It is used for routine electrical characterisation of devices.
• CRX-VF Cryogenic Probe Station — Lake Shore: The CRX-VF is a cryogen-free probe station with a vertical field superconducting magnet that applies up to +/-2.5 T perpendicular to the sample plane. A 2-stage closed cycle refrigerator cools the sample without liquid cryogens, with temperature control up to 420 K. It is used for measurements in an applied field.
• CRX-EM-HF Cryogenic Probe Station — Lake Shore: The CRX-EM-HF is a cryogen-free probe station with a horizontal electromagnet that applies up to +/-0.6 T in the plane of the sample. A 2-stage closed cycle refrigerator cools the stage to a base temperature of 8 K, with control from 10 K to 420 K. It is used for in-plane field measurements on devices.
• EMPX-H2 Cryogenic Probe Station — Lake Shore: The EMPX-H2 is a cryogenic probe station with a horizontal field electromagnet that applies up to +/-0.6 T in the plane of the sample. A 3-stage flow cryostat cooled by liquid helium or liquid nitrogen reaches a base temperature of 4.5 K, or 3.2 K with the PS-LT option. It takes up to four probe arms.
• FWPX Cryogenic Probe Station — Lake Shore: The FWPX is a cryogenic probe station for full wafer testing, taking wafers up to 102 mm (4 in) in diameter and able to be modified for 152 mm (6 in) wafers. A 2-stage flow cryostat cooled by liquid helium or liquid nitrogen gives a base temperature of 4.5 K with control up to 475 K.
• MeasureReady 155 AC/DC Current and Voltage Source — Lake Shore: The MeasureReady 155 is a precision low noise AC and DC current and voltage source. It sources voltage from 10 mV to 100 V and current from 1 µA to 100 mA, with manual or automatic range selection. It is used to drive samples and devices in low level electrical measurements.
• InAs and GaAs Hall Sensors — Lake Shore: InAs and GaAs Hall sensors are supplied as bare sensing elements in axial and transverse packages for measuring magnetic flux density. Types range from general purpose parts to instrumentation quality sensors with low temperature coefficients. They are used with Lake Shore 400 Series gaussmeters.
• 400 Series Hall Probes — Lake Shore: Lake Shore 400 Series Hall probes hold a Hall sensing element in a protective stem so magnetic flux density can be measured with a gaussmeter. Several probe configurations and Hall sensor types are offered. They are used for field mapping, magnet inspection and routine field checks.
• FP Series Hall Probes — Lake Shore: FP Series Hall probes measure magnetic flux density in 3-axis (vector), transverse and axial forms. Each probe uses an InAs sensing element with a built-in thermistor for temperature compensation. Stem lengths of 50 mm, 150 mm and 300 mm are available with handheld or mountable handles.
• Guarded Insert for PPMS — Lake Shore: This insert carries van der Pauw and Hall bar samples inside a PPMS cryostat, with a fully guarded signal path from instrument to sample. Used with the M91 FastHall controller it measures resistance from 10 milliohms to 200 gigaohms between 1.9 K and 400 K. An integrated Cernox sensor reads sample temperature.
• Model 121 Programmable DC Current Source — Lake Shore: The Model 121 is a programmable DC current source that supplies precise, low-noise and highly stable current up to 100 mA. It is used to excite resistance temperature sensors and other low-power devices where a settable, well-regulated current is needed.
• Custom probe stations — Lake Shore: Alongside their standard range, Lake Shore design cryogenic probe stations to suit a specific experiment. The published examples are a cryogen-free superconducting magnet station, custom liquid helium and liquid nitrogen cooled stations, a room temperature vacuum station and a miniature transportable vacuum chamber. Each example carries its own field, temperature, sample size and vibration figures, and the miniature chamber is stated to need no gate valves.
• PS-HM-8425 Hall measurement package for the CRX-VF probe station — Lake Shore: The PS-HM-8425 package adds Hall measurement to Lake Shore's CRX-VF cryogenic probe station. It supports DC Hall measurements on wafer-scale materials and structures as a function of temperature and field, and is supplied with a switch matrix, current source, voltmeter and a PC running the 8400 Series HMS software. Van der Pauw, Hall bar and gated Hall bar measurements are all covered, with optional modules for extra probe arms, high resistance work, gate bias voltage and QMSA software.

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