Bipolar Transistor Testing TRIZ Cases
- Probe Assembly Cooling for Power Semiconductor Inspection
Jetting cooling medium through a high-conductivity probe block suppresses temperature drift during large current inspections.
- IGBT Fault Detection via Gate Feedback Timing
Detects series-connected IGBT failures by comparing gating and feedback signal sequences, preventing voltage unbalance.
- High-Power Semiconductor Testing via Voltage-Time Balancing
Voltage-controlled converter modules balance voltage-time area to prevent transformer saturation during high-current testing of semiconductor elements.
- Kelvin Connection Wire-Bond Defect Detection Circuit
A detection circuit uses Kelvin connections to monitor wire-bond resistance during switching cycles.
- Equi-resistant probe distribution for wafer-level voltage measurements
Optimized probe needle positioning creates equi-resistant paths between force and sense needles to stabilize voltage readings.
- Semiconductor Temperature and Current Estimation via Dual Potential Difference
A semiconductor measurement apparatus estimates element temperature and main current by detecting two distinct potential differences across connection terminals.
- Inverter Short Circuit Detection via Transistor Desaturation
Test vectors force current through selected transistors to reveal desaturation, preventing delayed fault detection during low-frequency drive operation.
- Precision Voltage Drop Measurement for Semiconductor Switching Elements
Identical compensating circuit paths eliminate diode voltage uncertainty, enabling precise IGBT aging determination for subsea device maintenance.