Lattice Materials installs Class 10,000 cleanroom
FL Dye of Bozeman, MT has installed the cleanroom at Lattice Materials
Lattice Materials, a US producer of infrared optical blanks, laser mirror blanks and silicon sputtering targets, has installed a class 10,000 cleanroom environment for the cleaning and packaging of polished parts, primarily silicon and germanium witness samples.
The firm says the investment can be considered “significant for a company with 50 employees and a turnover of US$10m” and has enhanced the value of its witness samples.
“Parts coming out of our clean line were getting particulate contamination as they were transferred to packaging. The new cleanroom has solved that problem, allowing our customers to take these samples directly from our packaging into their coating machines,” said Peter Brown, sales and marketing manager at Lattice Materials.
Encompassing an advanced cleaning station and nitrogen-purged packaging capabilities, the cleanroom was installed by FL Dye of Bozeman, MT and was subjected to airflow and velocity testing, filter leak testing and airborne particle count cleanliness classification testing. The results of these tests showed that the cleanroom met ISO 14644-1:1999E Class 7 standards for 0.5µm and was rated IES 209E Class 10,000.
“The new cleanroom will save our customers both time and money by allowing them to take our witness samples directly into coating with no intermediate cleaning step required,” added Brown.
Polishing capabilities are limited to flat parts with a 60/40 surface quality and 1 fringe (1/2 wave) of flatness over a 1in part.
Lattice also stocks silicon witness samples and sputtering targets for immediate shipment.
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