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Testing stampers is an important quality assurance step in the production of optical discs as it enables optical media producers to identify errors early on in the production. However, it is also a challenge since stampers have no optical material on top of the pits, consequently resulting in a very poor read signal resolution and modulation. To handle this problem, a method to compensate for the lack of optical material must be applied. The CLA100 enables application of a thin film with optical properties representing the polycarbonate used for cover layer on optical discs, making stampers ready for testing. This newly developed COAT technology from AudioDev provides the user with a method to achieve excellent correlation between stamper and replica.
In contrast to the older formats CD and DVD, BD stamper testing has until this day been fairly limited. Based on its long experience in the optical media industry, AudioDev now believe that the BD format has reached a stage at which its customers to a larger extent are starting to produce their own stampers which will increase their need for stamper testing. With a bundle including the new CLA100 and the CATS BD Stamper Pro, AudioDev is able to provide the market with an improved and cost efficient solution for stamper testing.
The new application method offers a very fast, simple and affordable way to prepare a stamper. Within 30 seconds a cover layer film is accurately applied on the stamper, simulating a BD replica. After the test is completed, the cover layer is easily removed by using UV-light – a process completed within 2 minutes leaving no trace on the stamper. The CLA100 by such offers the user with an accurate and fast way to have high repeatability in stamper testing.
An important part of the CLA100 is the LAF (Laminar Air Flow) unit which provides more benefits to the user. The box offers a protected (dust free) environment for the application increasing the flexibility of where to place the CLA100. Also adding to the flexibility is its very compact size decreasing the space requirement.
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