Sputtering Targets, Evaporation Materials, High Purity PVD Materials and Backing Plates
The products you manufacture range up to 99.995% + in purity. Your Customers depend of the process materials you supply to produce the most important Electronic Components, Solar Panels, Flat Panel Displays, Plastic Films, Magnetic Media and more. If you product is delivered to your customer in the same condition it was in at you plant everything works. When you critical product is derogated in packing or shipping it just would perform as intended.
Two major opportunities for problems are, any type of surface contamination or moisture causing oxidation or staining.
Surface contamination includes physical particles, Ionic contamination and hydrocarbon outgassing (non-Volatile Residue), all of which can harm Critical High Purity Metals.
The solution is the uses of an extremely low outgassing cleanroom film specifically designed for contact with you product. AeroPackaging developed UltraLOPlus™ Poly for the NIF project at Lawrence Livermore National Laboratory to meet the exacting requirements of the largest laser project in the world. UltraLOPlus™ is a specially engineered Polyethylene Homopolymer, resulting in a cleanroom packaging film that has extremely low particulate contamination, low ionic contamination and very low potential hydrocarbon outgassing.
UltraLOPlus™ Poly has a tougher surface than other Poly so it resists scratching or scuffing of poly particles that can be caused by the sharp edges of your product. This characteristic plus its specially engineered formula produces a film with extremely low particle generation.
Mobile ion impurity levels can also have damaging results to high-performance products. The issue of purity has become extremely critical in any application when the component being packaged comes into direct contact with a process substrate. Any ionic contamination that transfers to the component will corrupt the process substrate. In each situation, specifications will need to balance setting maximum damage thresholds against realistic expectations for the packaging film. The science of testing for ions has advanced as quickly as the evolution of test equipment has made it possible. We have seen the measurement of ionic contamination advance from parts per million to parts per trillion, and now to 1012 molecules/cm2.
Low outgassing is an important factor in all cleanroom disciplines and it is even more important to your product once it’s in a package. If you are concerned about the outgassing of structural components in your cleanroom – and you should be – consider your package as a mini-environment, traveling to the other side of the world for processing. The opportunity to transfer chemical contamination to the surface of the packed product from outgassing during long-term contact with a large surface area like the inside of a bag is obvious. The challenge to the packaging manufacturer is to engineer films that minimize the components of the film itself that contribute to outgassing.
The damage caused by moisture during shipping or in storage will cause an immediate rejection by your customer and production problems as well. The best way to handle moisture control is with one of several Moisture barrier Laminated Films. Depending on the Moisture Challenge clear barrier films (lower MVTR), or a foil or metalized moisture barrier films (higher MVTR) are available. MVTR is “Moisture Vapor Transmission Rate”, most film manufactures us this standard and is tested per ASTM Method E96(B). This family of Films are manufactured for commercial and military customers, and use a seal enhancing additive EVA (ethyl vinyl acetate), a low-melt temperate polymer that outgases heavily.
The film can also has levels of “anti-block” and “slip” additives to give it good processing characteristics. Under normal, non-clean packaging circumstances the presence of these additives would not be a problem. In a move to cleaner packaging, however, the presence of additives will cause problems. The vinyl component (EVA) for example, will outgas chlorides, contaminants most users need to avoid in any concentration. The Barrier Films can be cleaned and used as a secondary, (outer bag) but should not be in contact with your high quality products.
For the UltraLOPlus Poly Specification Page click here
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