FFG1928

Device Reliability Report (UG116)

Document ID
UG116
Release Date
2023-05-17
Revision
10.17 English
Table 1. Package Details (All Dimensions in mm)
Package Size I/O Pitch Ball/Column Size Pad Opening Pad Type Die Size Substrate
FFG1928 45 X 45 1924 1.00 0.60 0.53 SMD 23.85 x 21.65 1.33 thick, 12-layer

Mother Board Design and Assembly Details

  • 16-layer, FR-4, 220 x 140 x 2.4 mm size, OSP finish
  • 0.53 mm pad diameter/0.63 mm solder mask opening (NSMD pads)
  • Board layer structure: signal/GND/signal/power/signal/GND/signal/power
  • Power, GND layer has 70% metal. Internal signal layer has 40% metal.
  • 0.127 mm laser cut stencil, 0.50 mm aperture, alpha metals WS820 paste

Test Condition

  • 0°C–100°C, 40-minute thermal cycle, 10-minute dwells, 10°C/minute ramp rate

Failure Criteria

  • Continuous scanning of daisy chain nets with event detector
  • FAIL: Resistance of net > threshold resistance (500Ω), 10 events (maximum), 1 μs duration (maximum)
Table 2. Summary of Test Results
Package Cycles Completed Number Tested Number Failed First Failure (Cycle) Characteristic Life (Cycle)
FFG1928 9,520 32 22 6,861 9,313

Weibull Plots

Figure 1. Cycles to Failure in the Second-Level Reliability Tests for FFG1928