Product category:
Laboratory and scientific manufacturing services
News Release from: Deposition Sciences | Subject: LPCVD IsoDyn coatings
Edited by the Laboratorytalk Editorial
Team on 22 August 2007
New LPCVD process is able to coat
complex shapes
Deposition Sciences (DSI) develops, manufactures and applies highly specialized, durable coatings onto complex shapes and multifaceted substrates
The shapes are coated using the company's IsoDyn LPCVD (low pressure chemical vapor deposition) process Ideal for coating almost all types of optical glass, including ball lenses, crystalline materials, ceramics and metals, DSI's proprietary LPCVD is a high temperature process (approximately 500C) that features uniform coatings on surfaces, both inside and out
This article was originally published on Laboratorytalk on 7 Mar 2008 at 8.00am (UK)
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These high performance coatings are deposited over the entire surface of an irregularly-shaped optic, in a single-pass operation.
The LPCVD deposition method is a thermally driven, organo-metallic process that is configured to deposit multi-layers of silicon dioxide, tantalum oxide, and titanium dioxide, as needed.
Fully automated, DSI's process is capable of manufacturing complex filters, providing coatings with service temperatures as high as 700C.
The multilayered coatings are resistant to thermal shock and can be deposited on optics as small as 0.3mm.
The coatings also feature highly stable wavelengths that do not shift with temperature.
With ball lens optics, the uniformity of the coatings simplifies assembly and eliminates the need for specific orientation of the part, reducing labour intensive, device assembly costs.
All LPCVD IsoDyn coatings from DSI meet or surpass the rigid Mil-C-675 testing standards for severe abrasion, adhesion, humidity and salt fog tests, making them ideal for a wide variety of high temperature materials.
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