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“Success is getting what you want. Happiness is liking what you get.”
- H. Jackson Brown, Jr.
Over the past six months, we have received and fulfilled numerous requests for custom TEM grids and other suspended-membrane products.
We welcome these inquiries, and enjoy partnering with customers on the design and fabrication of new formats. If needed, we can ensure confidentiality
of the design and production process.
Please contact us at sales@temwindows.com to discuss your custom needs.
Regards,
The TEMwindows.com Team
Our team of engineers has the capabilities to develop and fabricate custom TEM grids and other suspended-membrane chips. We take pride in meeting your
custom specifications with tight tolerances. We can help you refine your design and develop a fabrication plan to meet your needs. Our custom capabilities
include fabrication of devices:
- 100 – 400 micron thick silicon frames
- Frame geometries from standard 2.9 mm TEM grids to 5 x 5 mm chips (and larger)
- Windows of 0.025 – 2.5 mm, depending on membrane types
- Membranes of pure silicon, silicon nitride or silicon oxide from 5 – 200 nm thick
- Other novel materials also available
The above image shows samples from a wide range of custom orders. Recent examples include:
- 2.9 mm TEM Grids with 30 nm silicon nitride membranes and 25 micron and 50 micron square windows (top row, first two grids) – produced for the Riken Research Institute in Japan.
- 5 x 5 mm chips with 125 nm sputtered silicon oxide membranes on 1 x 2.5 mm openings (top row, last grid on right) – produced for the Max-Planck Institute in Germany.
Please contact us if you have any specialized grid requirements, and our engineers would be happy to provide feedback on potential solutions.
ATMOSPHERIC PRESSURE SCANNING TRANSMISSION ELECTRON MICROSCOPY
A recent article in Nano Letters (N. de Jonge, W. C. Bigelow, and G. M. Veith, Nano Lett., Articles ASAP, Feb. 10, 2010) illustrates how
relatively simple laboratory materials can be used for significant in situ STEM (scanning transmission electron microscope) experiments. In this paper,
the authors demonstrate the imaging of Au nanoparticles on a thin TiO2 surface in a 0.36 mm thick atmospheric pressure flow cell with a resolution of ~0.4 nm.
The flow cell was constructed with two SiN grids with custom geometry, separated with simple tubing spacers and sealed with vacuum epoxy.
Thin input and output tubing was fed through the specimen rod to the exterior of the STEM for source gas connections.
High resolution imaging through the atmospheric pressure chamber was achieved by focusing the STEM on nanoparticles on the entrance window
(relative to the electron beam), and imaging elastically scattered electrons with an ADF (annular dark-field) detector.
TEMWindows.com fabricates its own grids and has access to a suite of thin film deposition, patterning, and etch tools. As a result, we do a significant
amount of custom grid fabrication for our customers, when our standard products cannot be adapted for specialized experiments.
REMINDER REGARDING NEW PRODUCTS & LOWER PRICES
In January, we announced several new products, including 100 micron frame thicknesses for many grid formats. We also moved to an asymmetric
9-window format for our 100 micron products, to aid researchers in identifying the same position when switching between light and electron microscopy.
Improved manufacturing efficiencies allowed us to reduce pricing by 10% to 30% on our UltraSM® pure silicon, silicon nitride, and silicon oxide portfolio. Please go to www.temwindows.com to see details.
This month, we are launching a new sample pack, incorporating our new 20 nm thick Silicon Nitride grids. The sample pack includes the following items and has a special price of $360 ($100 savings):
- 5 x Porous UltraSM Pure Silicon 15 nm TEM Windows (squares)
- 5 x Non-Porous UltraSM Pure Silicon 9 nm TEM Windows (squares)
- 5 x Silicon Oxide 20 nm TEM Windows (squares)
- 5 x Silicon Nitride 20 nm TEM Windows (single 500 micron square)
Click here for more details.
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