Solder Ball Protection Film for panel-level packaging is a critical material used in advanced semiconductor packaging processes—particularly in Fan-Out Panel Level Packaging (FOPLP)—to protect solder bumps or balls from mechanical damage during reflow, transportation, thermo-compression, and other handling steps. As demand grows for high-frequency and high-density chips, solder balls have become smaller and more densely arranged, making them more vulnerable to thermal and mechanical stress. High-performance protection films play a vital role in maintaining integrity during these processes.
Key Features:
High Heat Resistance: Withstands the elevated temperatures required in early and mid-stage packaging without degrading performance.
Uniform Adhesion: Ensures stable, bubble-free bonding across the package surface, reducing misalignment and improving overall yield.
Controlled Peel Strength: Available with tailored adhesion levels to allow easy removal in later stages without damaging the solder balls or leaving adhesive residue.
Excellent Compatibility: Designed to work with various packaging substrates and solder materials (e.g., SnAgCu), with no adverse chemical reactions or interference with soldering quality.
These protection films are widely used in panel-level packaging (PLP), wafer-level packaging (WLP), and advanced module manufacturing processes, serving as key materials to safeguard component integrity and ensure process reliability.