Nikon’s proprietary scanning-type optical interference measurement technology achieves 1 picometer (pm) height resolution. Nikon offers a variety of optical microscopes as measurement systems to suit a wide range of measurement applications.
The system can be used as an optical microscope. Brightfield, polarizing, DIC and fluorescence observations are all possible
Type: BW-D501 system
Subject: Silicon Carbide (SiC) Wafer
Subject: Razor-edge
Type: BW-A501 system
Subject: Membrane of synthesized diamond using in-liquid plasma chemical vapor deposition
Photos courtesy of: Ph.D. Hiromichi Toyota, Ehime University Graduate School of Science and Engineering
|
High Pixel Resolution Model |
|||||
---|---|---|---|---|---|---|
BW-S501 |
BW-S502 |
BW-S503 |
BW-S505 |
BW-S506 |
BW-S507 |
|
Measurement optical system |
Focus Variation with White Light Interferometry (FVWLI) |
|||||
Height resolution (algorithm) |
1pm (0.001 nm) |
|||||
Step height measurement reproducibility |
σ: 8nm / 8m step height measurement |
|||||
Number of pixels |
2046 x 2046, 1022 x 1022 (selectable via software) |
|||||
Height measurement time |
38 s, 16 s / 10 μm scan |
|||||
Height measurement range |
< 90 μm |
< 20 mm |
< 90 μm |
< 20 mm |
||
Measurement field size (using 2.5X) |
< 4448 x 4448 μm* |
|||||
Piezo actuator |
Objective lens driven |
Nosepiece driven |
||||
Z axis |
Manual |
Electric |
Manual |
Electric |
||
XY axis |
Manual |
Electric |
Manual |
Electric |
||
Software |
Bridgelements® software modules |
|
High Speed Model |
|||||
---|---|---|---|---|---|---|
BW-D501 |
BW-D502 |
BW-D503 |
BW-D505 |
BW-D506 |
BW-D507 |
|
Measurement optical system |
Focus Variation with White Light Interferometry (FVWLI) |
|||||
Height resolution (algorithm) |
1 pm (0.001 nm) |
|||||
Step height measurement reproducibility |
σ8nm / 8m step height measurement |
|||||
Number of pixels |
510x510 |
|||||
Height measurement time |
4 s / 10 μm scan |
|||||
Height measurement range |
< 90 μm |
< 20 mm |
< 90 μm |
< 20 mm |
||
Measurement field size |
< 2015 x 2015 μm * |
|||||
Piezo actuator |
Objective lens driven |
Nosepiece driven |
||||
Z axis |
Manual |
Electric |
Manual |
Electric |
||
XY axis |
Manual |
Electric |
Manual |
Electric |
||
Software |
Bridgelements® software modules |
* The range can be extended by changing the relay lens or by stitching.