ANSI ESD-S20.20-2021-EN.pdf - 第8页

ANSI/ESD S20.20- 2021 iv TABLE OF CONTENTS 1.0 PURPOSE ............................................................................................................................... 1 2.0 SCOPE .........................…

ANSI/ESD S20.20-2021

iii

The following individuals contributed to the development of ANSI/ESD S20.20-2014, ANSI/ESD

S20.20-2007, and/or ANSI/ESD S20.20-1999.

Brent Beamer

Donald E. Cross

USN

Robert Cummings

NASA

Kevin Duncan

Seagate Technology

Reinhold Gaertner

Infineon Technologies

Steve Gerken

USAF

Ron Gibson

Advanced Static Control

Consulting

Tim Jarrett

Boston Scientific

Ronald L. Johnson

Intel

John T. Kinnear, Jr.

IBM

Anthony Klinowski

Boeing

Dave Leeson, Co-Chairman

Motorola SSTG

Garry McGuire

NASA

(Hernandez Engineering)

Thomas Mohler

Raytheon Systems

Corporation

Ralph Myers

ASC

Gene Monroe

NASA – LARC

Carl Newberg

MicroStat Laboratories

Dale Parkin

Seagate Technology

Robert Parr

Consultant

Brian Retzlaff

Plexus

Jeffrey Scanlon

ASC

Jeremy Smallwood

Electrostatic Solutions Ltd.

David E. Swenson

Affinity Static Control

Consulting, LLC

Sam Theabo

Plexus

Scott Ward

Texas Instruments

Joel Weidendorf

River's Edge Technical

Service

Craig Zander

Transforming Technologies

Sheryl Zayic

Boeing

ANSI/ESD S20.20-2021

TABLE OF CONTENTS

1.0 PURPOSE ............................................................................................................................... 1

2.0 SCOPE .................................................................................................................................... 1

3.0 REFERENCED PUBLICATIONS ............................................................................................ 1

4.0 DEFINITIONS .......................................................................................................................... 2

5.0 PERSONNEL SAFETY ........................................................................................................... 2

6.0 ESD CONTROL PROGRAM ................................................................................................... 2

6.1 ESD CONTROL PROGRAM REQUIREMENTS ............................................................................ 2

6.2 ESD CONTROL PROGRAM MANAGER OR COORDINATOR ........................................................ 3

6.3 TAILORING ............................................................................................................................ 3

7.0 ESD CONTROL PROGRAM ADMINISTRATIVE REQUIREMENTS..................................... 3

7.1 ESD CONTROL PROGRAM PLAN ............................................................................................ 3

7.2 TRAINING PLAN ..................................................................................................................... 3

7.3 PRODUCT QUALIFICATION PLAN ............................................................................................. 3

7.4 COMPLIANCE VERIFICATION PLAN .......................................................................................... 4

8.0 ESD CONTROL PROGRAM PLAN TECHNICAL REQUIREMENTS.................................... 4

8.1 GROUNDING/EQUIPOTENTIAL BONDING SYSTEMS ................................................................... 4

8.2 PERSONNEL GROUNDING ...................................................................................................... 5

8.3 ESD PROTECTED AREAS (EPAS) .......................................................................................... 6

8.3.1 Insulators ...................................................................................................................... 6

8.3.2 Isolated Conductors ..................................................................................................... 7

8.4 PACKAGING ........................................................................................................................ 10

8.4.1 United States Department of Defense (DoD) Packaging Requirements ................... 10

8.5 MARKING ............................................................................................................................ 10

Annexes

Annex A (Informative): Additional Process Considerations .......................................................... 11

Annex B (Informative): ESD Sensitivity Testing ........................................................................... 12

Annex C (Informative): Tailoring ................................................................................................... 14

Annex D (Informative): Related Documents ................................................................................. 16

Annex E (Informative): Statement of Direction ............................................................................. 18

Annex F (Informative): Revision History for ANSI/ESD S20.20 ................................................... 19

Tables

Table 1: Grounding / Equipotential Bonding Requirements ........................................................... 5

Table 2: Personnel Grounding Requirement .................................................................................. 6

Table 3: EPA ESD Control Items.................................................................................................... 8

Table 4: Packaging Requirements ............................................................................................... 10

Table 5: ESD Susceptibility Test References for Devices ........................................................... 13

ESD Association Standard ANSI/ESD S20.20-2021

ESD Association Standard for the Development of an Electrostatic Discharge Control

Program for Protection of Electrical and Electronic Parts, Assemblies, and Equipment

(Excluding Electrically Initiated Explosive Devices)

1.0 PURPOSE

The purpose of this standard is to provide administrative and technical requirements for

establishing, implementing, and maintaining an ESD control program (hereafter referred to as the

"Program").

2.0 SCOPE

This document applies to organizations that manufacture, process, assemble, install, package,

label, service, test, inspect, transport, or otherwise handle electrical or electronic parts, assemblies,

and equipment susceptible to damage by electrostatic discharges greater than or equal to 100 volts

human body model (HBM) and 200 volts charged device model (CDM). Also, protection from

isolated conductors is handled by limiting the voltage on isolated conductors to less than 35 volts.

Processes that include items susceptible to lower withstand voltages may require additional control

elements or adjusted limits. Processes designed to handle items with a lower ESD withstand

voltage can still claim compliance to this standard. This document does not apply to electrically

initiated explosive devices, flammable liquids, or powders.

NOTE: The CDM voltage level used in this document is based on industry experience when managing

process essential insulators to mitigate induced voltages on devices that could lead to damage.

3.0 REFERENCED PUBLICATIONS

Unless otherwise specified, the following documents of the latest issue, revision, or amendment

form a part of this standard to the extent specified herein:

ESD ADV1.0, ESD Association's Glossary of Terms

ANSI/ESD S1.1, Wrist Straps

ANSI/ESD STM2.1, Garments – Resistive Characterization

ANSI/ESD STM3.1, Ionization

ANSI/ESD SP3.3, Periodic Verification of Air Ionizers

ANSI/ESD STM4.1, Worksurfaces – Resistance Measurements

ANSI/ESD S6.1, Grounding

(2)

ANSI/ESD STM7.1, Flooring Systems – Resistive Characterization

ANSI/ESD S8.1, Symbols – ESD Awareness

ANSI/ESD STM9.1, Footwear – Resistive Characterization

ANSI/ESD SP9.2, Foot Grounders – Resistive Characterization

ANSI/ESD STM11.11, Surface Resistance Measurement of Static Dissipative Planar Materials

ANSI/ESD STM11.12, Volume Resistance Measurements of Static Dissipative Planar Materials

ANSI/ESD STM11.13, Two-Point Resistance Measurement

ANSI/ESD STM11.31, Bags

ANSI/ESD STM12.1, Seating – Resistance Measurements

ANSI/ESD S13.1, Electrical Soldering/Desoldering Hand Tools

ESD TR53, Compliance Verification of ESD Protective Equipment and Materials

EOS/ESD Association, Inc. 218 West Court Street, Rome, NY 13440, Ph: 315-339-6937; www.esda.org