SPRK066 October   2025 F28377D-SEP

 

  1.   1
  2.   F28377D-SEP Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Single-Event Effects (SEE)
  6. 3Device and Test Board Information
  7. 4Irradiation Facility and Setup
  8. 5Depth, Range, and LETEFF Calculation
  9. 6Test Setup and Procedures
  10. 7Destructive Single-Event Effects (DSEE)
    1. 7.1 Single-Event Latch-up (SEL) Results
  11. 8Single-Event Transients (SET)
    1. 8.1 GPIO Testing and Results
      1. 8.1.1 GPIO Test Setup
      2. 8.1.2 GPIO SET Analysis
      3. 8.1.3 GPIO SET Summary
    2. 8.2 ePWM Testing and Results
      1. 8.2.1 ePWM Testing Setup
      2. 8.2.2 ePWM SET Analysis
      3. 8.2.3 ePWM SET Summary
    3. 8.3 SRAM Testing and Results
      1. 8.3.1 SRAM Test Setup
      2. 8.3.2 SRAM SET Summary
    4. 8.4 Flash Memory Testing and Results
      1. 8.4.1 Flash Test Setup
      2. 8.4.2 Flash SET Summary
  12. 9Summary
  13.   A Total Ionizing Dose from SEE Experiments
  14.   B 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 104-105 ions×cm2/s were used to provide heavy-ion fluences of 106-107 ions×cm2/s

For the experiments conducted on this report, there were 2 ions used, 109Ag and 40Ar. 109Ag was used to obtain LETEFF of 45MeV·cm2/mg. 40Ar was used to obtain LETEFF of 8MeV·cm2/mg. The total kinetic energys for each of the ions were:

  • 109Ag = 1.27 GeV (15MeV/nucleon)

    • Ion uniformity for these experiments was on average 91%

  • 40Ar = 536.9MeV (15MeV/nucleon)

    • Ion uniformity for these experiments was on average 94%

Figure 4-1 shows the F28377D EVM used for the data collection at the TAMU facility. 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 40mm for all runs.

TMS320F38377D-SEP Photograph of the F28377D-SEP EVM in Front of the Heavy-Ion Beam Exit Port at the Texas A&M Cyclotron Figure 4-1 Photograph of the F28377D-SEP EVM in Front of the Heavy-Ion Beam Exit Port at the Texas A&M Cyclotron