Risk of ESD Sensitive Devices in Proximity to ANSI/ESD STM2.1 Compliant Garments by Field Induced Model Discharge

摘要

DURING ESD assessments, it is not uncommon to see personnel wearing wool, silk, cotton, polyester blends and static control overalls (ESD Garments). Some ESD garment types consist of an embedded conductive grid network (Figure 1) in combination with cotton or polyester blends as seen under a digital microscope (Figure 1, left). Despite favorable cuff-to-cuff (Figure 2 right) or sleeve-to-sleeve resistance (Figure 2, left) to ANSI/ESD STM2.1-2013 (see Table 2), some ESD garment types are charge generating. So, is a conductive grid network embedded in ESD garments (Figure 1) adequate for the prevention of Triboelectrification or charge generation? Note: This article does not address disposable garments.