Q-Scope 250 scanning probe microscope (SPM) and atomic force microscope (AFM)

Highlights

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SofTouch™
Q-Lithic™ Stage
Isotopic Focal System™
AnaLoop™
Fast and Automatic Approach
Premounted Cantilevers
ScanAtomic™

Standard Equipment



SofTouch™:

Patented method of gentle approach of the probe to the sample avoids damage to the sample surface (particularly in soft samples).

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Q-Lithic™ Stage:

Solid granite base and support arch for excellent mechanical and thermal stability. Includes Z-axis motion control hardware.

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Isotopic Focal System™:
Patented optical system which allows the laser beam to track the cantilever/probe during scanning, greatly increasing sensitivity and virtually eliminating laser light reflections from the sample. It also permits for a 90 degree top-down view, providing for easy laser alignment and positioning of the probe over sample features to be scanned.

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AnaLoop™:
Patented analog feedback loop that is digitally controlled with inputs from the keyboard or mouse. It combines the advantages of an analog loop, such as no quantizing errors, with a sampling frequency that is three times faster than current digital feedback loops, obtaining three times the number of data points at equivalent scan rates.

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Fast and Automatic Approach:
The beta version of a totally automatic approach has been released that drives the probe toward the sample surface at high speed until it first senses the surface. Then it changes to a slow, soft approach that allows the probe to gently engage the surface and enter feedback condition.

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Premounted Cantilevers:
Convenient mounting on stainless steel tabs allows for quick and easy replacement of probes. Quesant supplies contact and intermittent contact probes along with high aspect ratio, Magnetic Force, and metal coated probes (for hardness or conductivity).

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ScanAtomic™:
User friendly software operating under Microsoft Windows 98. The software enables the operator to perform even complex operations with ease through selecting menu options in windows organized by functions. Images are displayed at a high screen resolution of 1024 x 768 with 65,000 colors.

Click here to view the
ScanAtomic Feature Tour.

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Standard Equipment

Computer - State of the Art Gateway or Equivalent
- Intel Pentium III Processor
- 20+ GB hard disk drive
- 3.5" floppy disk drive
- 64 MB main memory
- 17" Monitor & PCI bus video adapter
- CD ROM drive
- Keyboard and mouse, standard I/O ports
- Image Data Processing Board (Proprietary)
- Windows 98 Operating System
- ScanAtomic™ scanning and analytical software

Q-Scan™ - AFM Scan Head Choice of 20, 40 or 80 um scanning head

Color Video Subsystem WinCast/TV board Top View color CCD camera

Q-Lithic™ - Solid Granite Stage Solid granite base and support arch Manual micro positioning X-Y platform Motorized Z-axis with fully automatic approach

Electronic Interface Unit Five 16 bit D/A converters One 10 bit D/A converter Five 16 bit A/D convertersHard Zoom implementation

Stage Interface Unit Z-axis motor driver Top view camera light control

Probes A start-up selection of contact and WaveMode™ (intermitent contact) cantilevers are included

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