Filling material

The filling material is an integral part of the packaging process and plays an important role in protecting the core and improving reliability and performance. The main function is to protect the device body from the external environment (water vapor, temperature, pollution, etc.), and to achieve heat conduction, insulation, moisture resistance, pressure resistance, supporting and other composite functions.

Filler material forms include, but are not limited to, the following types:
• underfill
• gap filling