We released a New product.
NRW series : Resistivity Reference wafer
NRW series are resistivity reference wafers which proven by Napson’s resistivity measurement system. NRW series use wafers with neutron irradiation, and excellent stability.
Napson’s four-probe resistivity measurement system has been calibrated by standard wafers (NIST, VLSI), and conforms to the standards stipulated by the following SEMI standards, Japanese Industrial Standards (JIS) and American Materials Testing Association (ASTM).
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