Physical Vapor Deposition (PVD) for Optical Coatings
PROBLEM
< Optical thin films such as MgF and SiO cause crystals to become excessively noisy and/or fail early, preventing completion of deposition run
SOLUTIONS
< Heating crystals to 90°C allows extended crystal life by reducing stress, thereby eliminating noise and crystal failure, often by as much as 500%
< Alloy quartz crystals significantly reduce film stress leading to low noise, long crystal life
< Temperature controlling instrumentation
RECOMMENDED PRODUCTS
< Alloy quartz crystals (standard AT or the stress-resistant RC™)
< Eon-LT™ Monitor or Controller
PROBLEM
< Multilayer dielectrics consisting of 50 or more layers exceed the capacity of crystals due to excessive film buildup
SOLUTIONS
< Temperature measuring instrumentation
RECOMMENDED PRODUCTS
< Eon-LT™ Monitor or Controller
PROBLEM
< Ultra thin film layers used in “needle” synthesis optical film manufacture are difficult to measure due to crystal rate shock upon opening of the source shutter
< When the shutter on the deposition source is opened, the crystal rate spikes then settles, causing the rate reading to be obscured
SOLUTION
< Noise-resistant crystals are impervious to thermal shock (minimizing stress) and result in high accuracy
< Temperature measuring instrumentation
RECOMMENDED PRODUCTS
< RC™ quartz crystals
< Eon-LT™ Monitor or Controller
For additional information, refer to the following datasheets:
Product Guide – Optical Coatings
In addition to PVD, Colnatec serves various thin film technologies. We have products currently in production that address the needs of multiple thin film technologies, and we are currently developing new products to address our customers’ unique thin film needs for the following:
Product Guide – OLED: Organic Light Emitting Diode
Product Guide – CIGS: Copper Indium Gallium Selenium
Product Guide – ALD: Atomic Layer Deposition
To place an order, please contact sales@colnatec.com or call +1 480-634-1449.
