SLVK174 September   2024 TPS7H1121-SP

 

  1.   1
  2.   TPS7H1121-SP Single-Event Effects (SEE)
  3.   Trademarks
  4. 1 Introduction
  5. 2 Single-Event Effects (SEE)
  6. 3 Device and Test Board Information
    1. 3.1 Device and Test Board Information Continued
  7. 4 Irradiation Facility and Setup
  8. 5 Depth, Range, and LETEFF Calculation
  9. 6 Test Setup and Procedures
  10. 7 Destructive Single-Event Effects (DSEE)
    1. 7.1 Single-Event Latch-up (SEL) Results
    2. 7.2 Single-Event Burnout (SEB) and Single-Event Gate Rupture (SEGR) Results
  11. 8 Single-Event Transients (SET)
  12. 9 Event Rate Calculations
  13. 10Summary
  14.   A Total Ionizing Dose from SEE Experiments
  15.   B References

4 Irradiation Facility and Setup

The heavy-ion species used for the SEE studies on this product were provided and delivered by two facilities:

  • Michigan State University (MSU) Facility for Rare Isotope Beams (FRIB) using a linear accelerator and an advanced electron cyclotron resonance (ECR) ion source. At the fluxes used, ion beams had good flux stability and high irradiation uniformity as the beam is collimated to a maximum of 20mm x 20mm square cross-sectional area for the in-vacuum scintillator. Uniformity is achieved by scattering on a Cu foil and then performing magnetic defocusing. The flux of the beam is regulated over a broad range spanning several orders of magnitude. For these studies, ion flux of 9.36 x 104 to 1.07 x 105 ions/cm2·s was used to provide heavy-ion fluences of 1.00 x 107 ions/cm2.
  • Texas A&M University (TAMU) Cyclotron Radiation Effects Facility using a superconducting cyclotron and an advanced electron cyclotron resonance (ECR) ion source. At the fluxes used, ion beams had good flux stability and high irradiation uniformity over a 1-in diameter circular cross-sectional area for the in-air station. Uniformity is achieved by magnetic defocusing. The flux of the beam is regulated over a broad range spanning several orders of magnitude. For these studies, ion flux of 5.08 x 104 to 6.39 x 104 ions/cm2·s was used to provide heavy-ion fluences of 1.00 x 107 ions/cm2.

For the experiments conducted on this report, there was 2 ions were used, 169Tm and 165Ho. Both were used to obtain LETEFF of 75 MeV·cm2/mg. The total kinetic energies for the ions were:

  • 169Tm = 3.431 GeV (20.3 MeV/nucleon)
    • Ion uniformity for these experiments was between 98% and 98.4%
  • 165Ho = 2.474 GeV (15 MeV/nucleon)
    • Ion uniformity for these experiments was between 93% and 96%

Figure 4-1 shows the TPS7H1121EVM-CVAL used for data collection at both facilities. Although not visible in this photo, the beam port has a 1-mil Aramica window to allow in-air testing while maintaining the vacuum within the accelerator with only minor ion energy loss. The in-air gap between the device and the ion beam port window was maintained at 70-mm for all runs at MSU and 40-mm for all runs at TAMU.

Photograph of the TPS7H1121EVM-CVAL in Front of the Heavy-Ion Beam Exit Port at the MSU FRIBFigure 4-1 Photograph of the TPS7H1121EVM-CVAL in Front of the Heavy-Ion Beam Exit Port at the MSU FRIB