SLVK099B March   2022  – September 2023 TPS7H5001-SP , TPS7H5002-SP , TPS7H5003-SP , TPS7H5004-SP

PRODUCTION DATA  

  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)
    1. 8.1 System Level Implications
  12. 9 Event Rate Calculations
  13. 10Summary
  14.   A Total Ionizing Dose from SEE Experiments
  15.   B References
  16.   C Revision History

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 7.26 × 104 to 1.65 × 105 ions/cm2·s was used to provide heavy-ion fluence of 9.96 × 106 to 1.01 × 107 ions/cm2.

For the experiments conducted on this report, there were 4 ions used: Krypton (Kr), Silver (Ag), Praseodymium (Pr), and Holmium (Ho). Kr was used to obtain LETEFF of 30.5, 37.3, and 40.6 MeV·cm2/mg. Ag was used to obtain LETEFF of 47.8 MeV·cm2/mg. Pr was used to obtain LETEFF of 65 and 75 MeV·cm2/mg. Lastly, Ho was used to obtain LETEFF of 75 MeV·cm2/mg. The total kinetic energy for each of the ions are shown in Table 4-1.

Table 4-1 Total Kinetic Energy for Ions Used
Ion Used Ion Uniformity Range
84Kr = 2.081 GeV
(15 MeV/nucleon)		 94% to 95%
109Ag = 1.634 GeV
(15 MeV/nucleon)		 95% to 97%
141Pr = 2.114 GeV
(15 MeV/nucleon)		 90% to 96%
165Ho = 2.47 GeV
(15 MeV/nucleon)		 91% to 95%

Figure 4-1 shows the TPS7H500x-SP SEE Test Board 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 40 mm for all runs.

GUID-20220119-SS0I-VNTJ-134C-BFW6QCBKNM7R-low.jpg Figure 4-1 Photograph of the TPS7H500x-SP SEE Test Board in Front of the Heavy-Ion Beam Exit Port at the Texas A&M Cyclotron