SBOK095 December 2024 TRF0208-SP
All SEL characterizations were performed with forced hot air to maintain the die temperature at 125°C during the tests. The device was exposed to a Holmium (Ho) heavy-ion beam incident on the die surface at 0° incident angle for an effective LET of 81.6 MeV-cm2/mg. A flux of 105 ions/cm2-s and fluence of 107 ions/cm2 per run was used in all runs. The device was powered with voltage of 3.45V in most runs. In few runs device was tested at absolute maximum supply voltage of +3.7V. During all runs the device was actively amplifying a single ended input signal at 100 MHz. Both differential outputs were independently terminated (SE) to 50 Ω .
Time duration to achieve this fluence was approximately 2 minutes. The SEL results and conditions are provided in Table 7-1. All the runs passed, indicating that the TRF0208-SP is SEL-immune at a die-exposed temperature of T = 125°C and LET = 81.6 MeV-cm2/mg.
| Run # | Unit # | Test Type | Die-Exposed Temp. (°C) | Ion Type | LETEFF (MeV-cm2/mg) | Fluence (ions/cm2) | VDD (V) | Uniformity | Results |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | SEL | 125 | Ho | 81.6 | 1.0 × 107 | 3.45 | 92 % | Pass |
| 2 | 1 | SEL | 125 | Ho | 81.6 | 2.0 × 107 | 3.7 | 92 % | Pass |
| 3 | 2 | SEL | 125 | Ho | 81.6 | 1.0 × 107 | 3.45 | 96 % | Pass |
| 4 | 2 | SEL | 125 | Ho | 81.6 | 2.0 × 107 | 3.7 | 96 % | Pass |
5 | 2 | SEL | 125 | Ho | 81.6 | 2.0 × 107 | 3.45 | 96 % | Pass |
6 | 3 | SEL | 125 | Ho | 81.6 | 1.0 × 107 | 3.45 | 95 % | Pass |
7 | 3 | SEL | 125 | Ho | 81.6 | 2.0 × 107 | 3.7 | 95 % | Pass |
Figure 7-1 Supply Current versus Time Data for SEL Run #2
for the TRF0208-SP