Low Dose Rate Qualified Parts on MIL-PRF-19500 QPL
Semicoa becomes the first supplier granted MIL-PRF-19500 Qualified Parts List (QPL) approval for Radiation Hardness Assured (RHA) Low Dose Rate qualified transistors at the levels E (30 Krad), K (50 Krad) and U (100 Krad). This includes part numbers 2N2221A, 2N2222A, 2N2484, 2N2906A, 2N2907A, 2N3019, 2N3057A, and 2N3700. Devices are available in die form at JANHC plus RHA or JANKC plus RHA letter designator or package form at the JANTXV plus RHA or JANS plus RHA letter. All packaged parts will be laser marked with these new RHA part numbers. These part numbers are qualified to Low Dose Rate Total Dose at 10 mrad/s, with the parts tested in the biased and unbiased state during exposure. A sample of 22 devices are tested from each wafer, 11 in the biased state and 11 in the unbiased state, to qualify them for these RHA letter designators. Acceptance of a wafer or wafer lot is based on all samples meeting the Group D, subgroup 2 parameter limits and all parameter deltas (Group D minus Group A) meeting their respective limits using statistics at the 0.99/90% level.