Following ESD Materials Validation Protocols - Part 2: Comparing Antistats Versus Inherently Conductive Polymer Coated Type I Mositure Barrier Bags For Humidity Dependence & Charge Generation at Low RH

摘要

Comparing Antistats versus Inherently Conductive Polymer Coated Type I Moisture Barrier Bags for Humidity Dependence & Charge Generation at Low RH This is a continuation, from the September 2010 Issue, of the examination of ESD packaging regarding Electrostatic Decay, Static Shielding, and Charge Generation. (Note: Figures and tables are noted as continuing numbers from Part 1. Full Part 2 version can be referenced at www.cemag.us) There are two different types of electrically active polymers from conductivity in an inherent point of view regardless of humidity. The first category is Inherently Conductive Polymers (ICP) which are thermoset in structure and can provide surface resistance readings from <10~(2) - 10~(10) ohms depending upon the application thickness of the polymer. A second category is the Inherently Dissipative Polymers (IDP) which are thermoplastic in structure, can provide surface resistance readings in the 10~(7) - 10~(11) ohm range, and are also dependent upon the thickness of the polymer sample.