Conformal shielding investigation for SiP modules

Abstract

This paper proposes a complete testing process for conformal shielding techniques. The testing process is systemic and cheap for developing conformal shielding techniques. A 2-D experiment setup and an exact solution are presented to evaluate the properties of metals and metallization techniques. A test vehicle is designed for providing broad band source and low unintended noise. A experiment setup using giga-hertz transverse electromagnetic (GTEM) cell is proposed for providing low noise floor and high sensitivity for measuring small radiation. The test vehicle coated by 0.04 μm sputtering SuS and 1 μm sputtering copper is manufactured and measured to evaluate shielding effectiveness of conformal shielding.