From the history to the present

A published report informs about the fact, that already in 1957 there was an activity in the field of recycling of trace elements from the solutions which circulated in the Aluminium oxide production. The first results of the research can be found in 1960. In this year the first kilogram of Gallium was produced, moreover, the method describing the refining of this metal up to 99.999 %.

In the year 1968 the construction of the pilot plant for Gallium production began. The production capacity of it was 400 kg/year, which was eventually increased up to 1 800 kg/year. Based on results of the research in 1981 a new production hall was built. The capacity of it was 4 000 kg/year.

The world production of Gallium in the year 1985 was 35 t/year, where the Czechoslovakia with the 3.5 t/year was a significant producer of this metal.

In the year 1973 a monocrystalline Gallium Arsenide was produced from this domestic Gallium. Already at that time as well as now it has a wide range of use. It enabled the development of the electro-technical items (discs, transistors, lasers). This GaAs production was later on located in plant in Zarnovica, where further research in this field was done.

Vision

We recapture, we protect

Therefore, CMK employs professionals in the branch to meet the requirements of each customer individually. Research and development with the aim to be one of important players in the semiconductor industry belongs to the significant activities of the company. R&D and production are in accordance with the care and improvement of the health and safety protection on the workplaces as well as in respect of the environment.