With the ever decreasing size of electronic components and the quest to constantly improve performance, the electronics market is always looking for optimum product purity and consistency at every stage of the manufacturing process.
The etchant of semi-conductors
Used as etchant for the stripping of aluminium and silicon nitrite during the production of some contactors, Ultrabex™ provides the answer to exacting electronics requirements.
Integrated circuits are manufactured from ultra pure thin and polished semiconductor layers that would have previously required several successive cleaning and stripping operations using ultra pure chemicals like ammonia, hydrochloric acid, nitric acid, sulphuric acid, hydrofluoric acid or phosphoric acid.
FEBEX is specialized in the manufacture of ultra pure phosphoric acid for this application with its Ultrabex™ electronic grade, classified ULSI and Grade 3 as defined by SEMI. This grade is defined by low levels of trace metal up to an iron content below 50 ppb and even an all impurities content below 100 ppb with the IMAX 100 quality.