SLVK183 February   2025 TPS7H6005-SP , TPS7H6015-SP , TPS7H6025-SP

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Single-Event Effects (SEE)
  6. 3 Device and Test Board Information
  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 References

4 Irradiation Facility and Setup

The heavy-ion species used for the SEE studies on this product were provided and delivered by the 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 2.74 × 104 to 1.00 × 105 ions / cm2 × s were used to provide heavy-ion fluences of 1.00 × 107 ions / cm2.

For the experiments conducted on this report, there were two ions used, 109Ag, and 165Ho. 109Ag was used to obtain LETEFF of 48 or 58 MeV × cm2 / mg. 165Ho was used to obtain LETEFF of 75 MeV × cm2 / mg. The total kinetic energies for each of the ions were:

  • 109Ag = 1.634 GeV (15 MeV/nucleon)
    • Ion uniformity for these experiments was 95%
  • 165Ho = 2.474 GeV (15MeV / nucleon)
    • Ion uniformity for these experiments was between 81 and 98%

Figure 4-1 shows the TPS7H60x5-SP Evaluation Board used for the data collection at the TAMU facility. Although not visible in this photo, the beam port has a 1mil 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 40mm for all runs.

Photograph of the TPS7H60x5-SP Evaluation Board in Front of the Heavy-Ion Beam Exit Port at the Texas A&M CyclotronFigure 4-1 Photograph of the TPS7H60x5-SP Evaluation Board in Front of the Heavy-Ion Beam Exit Port at the Texas A&M Cyclotron