感光性ゲート酸化膜の保護：PCBおよびSMT部品の取り扱いにおける摩擦帯電の低減
Introduction In the manufacturing of electronic control units (ECUs) for new energy vehicles, battery management systems (BMS), and megawatt-class high-voltage industrial variable-frequency drives, “zero defects” and long-term operational reliability are the fundamental principles of production line quality control. As the manufacturing processes for automotive-grade power semiconductors and main control chips continue to shrink, the gate insulation layer thickness of power MOSFETs, IGBT driver chips, and highly integrated MCUs has been reduced to the nanometer-level limit. On these high-density mixed-assembly production lines, what truly causes a collapse in batch quality is often not direct burnout caused by violent discharges of several thousand volts, but rather low-potential electrostatic discharges generated by tribocharging—the […]