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Prices are current as of Monday, 22/04/2019.
Prices are GST exclusive. Tax is added at checkout.

Availability: Backorder
Product Code: GA548

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These 3mm silicon discs have a 50um ultra low stress silicon nitride layer (Si3N4) on both sides and can be used as specimen discs for AFM applications, which need a Si3N4 background. The disks are made with the same state-of-the-art manufacturing techniques as the PELCO silicon nitride support films. The disk are perfectly round and have the Easygrip edge for easy handling. Clean surface, no broken edges and free of debris often associated with other manufacturing processes. The ultra-low-stress film is nonstoichiometric and closer to SiN than Si3N4.

Film thickness
: 50nm ultra low stress Si3N4 on both sides
Disc thickness: 200um silicon support
Disc diameter: 3mm
Surface roughness: The RMS (Rq) is 0.65 /- 0.06nm which gives a mean roughness (Ra) of 0.45 /- 0.02nm
Packaging: The PELCO Silicon aperture frames are packaged under cleanroom conditions in the PELCO TEM Grid Storage box. Each box holds 10 discs.


Orders with items in stock are packed within 24 hours. We ship with our best choice of courier, depending on goods ordered and shipping address provided.


Standard delivery

Express delivery


Next day



2-3 business days



4-10 business days

2-3 business days


6-14 business days

2-3 business days



5-14 business days

*Note: Delivery times are as provided by our carriers and are estimates only. Delays may occur during peak periods, and due to factors outside the carriers' control.

Standard shipping is $15 in Australia (free on orders over $200). Add $5 to ship Express (under 2kg only)


Order online and collect from our warehouse in Townsville.


Freight Charge

Ready for collection

11 Carlton Street, Kirwan


Once invoice has been emailed
(Less than 1 business day)

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