Thin Film > English









HOW IS COATING ACTUALLY PROCEEDED?
There are two basic types of vacuum coating systems.
One is called batch process type and the other is called continues process type. The first one is suitable for small production or proto types. The second one is for mass-production since it has remarkably higher throughput because of less loss of vacuum preparation time in order to work change.
Please refer to the Technical Information page for details of vacuum coating system.
HOW MANY PIECES OF OPTICAL PARTS CAN BE COATED AT ONCE.?
Maximum number of pieces feed into coating chamber is depending on its size, jigs and film specification.
Generally speaking, distribution of deposition material in the chamber is not equal at every where. Often required film is possible in not entire area but in some limited region.
Therefore, it is necessary to measure the maximum number each time for new products arise with consideration on above issues.
Also, it is important to note that excess pieces over the maximum number should be handled whatever there are empty spaces in jigs or not. This is a loss of cost and time.
WHAT IS JIG?
Usually shape of work piece is not simple like a plate or a brick.
Even it is a simple shape but often unexpected area to be coated exists.
To hold work pieces sits in the doom during coating properly and to mask out unnecessary part, a holder called jig is designed for all the work piece to be coated.