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ANSI/ESD S20. 20- 2021 17 ANSI/ESD SP17.1 , ESD Standard Practice for the Protection of E lectrostatic Discharge Susceptible Items – Process Assessment Techniques ESD TR20. 20, ESD Asso ciation Tech nical Re port – Handb…

ANSI/ESD S20.20-2021

(This annex is not part of ESD Association Standard ANSI/ESD S20.20-2021)

ANNEX D (INFORMATIVE) – RELATED DOCUMENTS

The following documents are listed for further reference. Some documents may be canceled.

However, this listing provides a reference of documents reviewed during the preparation of this

standard.

Military / U.S. Government

MIL-STD-3010, Federal Test Method Standard

MIL-PRF-81705, Barrier Materials, Flexible, Electrostatic Discharge Protective, Heat-Sealable

MIL-PRF-38534, Performance Specification: Hybrid Microcircuits, General Specification

MIL-PRF-38535, Performance Specification: Integrated Circuits (Microcircuits) Manufacturing,

General Specification

MIL-STD-883-3 Method 3015, Test method standard for microcircuits

MIL-STD-750-1 Method 1020, Test methods for semiconductor devices

MIL-PRF-19500, Semiconductor Devices, General Specification

MIL-STD-1686, Electrostatic Discharge Control Program for Protection of Electrical and Electronic

Parts, Assemblies and Equipment (Excluding Electrically Initiated Explosive Devices) – This

standard has been canceled.

MIL-HDBK-263, Electrostatic Discharge Control Handbook for Protection of Electrical and

Electronic Parts, Assemblies, and Equipment (Excluding Electrically-Initiated Explosive Devices) –

This handbook has been canceled.

MIL-M-38510, General Specification for Military Microcircuits - This standard is inactive.

MIL-DTL-82646, Plastic Film, Conductive, Heat Sealable, Flexible

MIL-PRF-87893, Workstations, Electrostatic Discharge (ESD) Control

MIL-STD-129, Marking for Shipment and Storage

MIL-STD-1285, Marking of Electrical and Electronic Parts

KSC-MMA-1985-79, Standard Test Method for Evaluating Triboelectric Charge Generation and

Decay

MIL-HDBK-103, List of Standard Microcircuit Drawings

Supplemental Information Sheet for Electronic QML-19500

Industry Standards

ANSI/IEEE-STD-142, IEEE Green Book (IEEE Recommended Practice for Grounding of Industrial

and Commercial Power Systems)

ANSI/ESD SP5.0, ESD Association Standard Practice for Electrostatic Discharge Sensitivity

Testing – Reporting ESD Withstand Levels on Datasheets

ANSI/ESDA/JEDEC JS-001, ESDA/JEDEC Joint Standard for Electrostatic Discharge Sensitivity

Testing – Human Body Model (HBM) – Component Level

ANSI/ESDA/JEDEC JS-002, ESDA/JEDEC Joint Standard for Electrostatic Discharge Sensitivity

Testing – Charged Device Model (CDM) – Device Level

ESD SP5.2, ESD Association Standard Practice for Electrostatic Discharge Sensitivity Testing -

Machine Model (MM) – Component Level

ANSI/ESD SP10.1, ESD Association Standard Practice for the Protection of Electrostatic

Discharge Susceptible Items – Automated Handling Equipment (AHE)

ANSI/ESD STM15.1, ESD Association Standard Test Method for the Protection of Electrostatic

Discharge Susceptible Items – Methods for Resistance Measurement of Gloves and Finger Cots

ANSI/ESD S20.20-2021

ANSI/ESD SP17.1, ESD Standard Practice for the Protection of Electrostatic Discharge

Susceptible Items – Process Assessment Techniques

ESD TR20.20, ESD Association Technical Report – Handbook for the Development of an

Electrostatic Discharge Control Program for the Protection of Electronic Parts, Assemblies, and

Equipment

JESD625, Requirements for Handling Electrostatic-Discharge-Sensitive (ESDS) Devices

IPC/JEDEC J-STD-033, Handling, Packing, Shipping and Use of Moisture Reflow, and Process

Sensitive Devices

TR3.0-02-05, Selection and Acceptance of Air Ionizers

ESDSIL, Reliability Analysis Center (RAC) ESD Sensitive Items List

JESD471, Symbol and Label for Electrostatic Sensitive Devices

IEC 61340-5-1, Protection of Electronic Devices from Electrostatic Phenomena – General

Requirements

VZAP, Electrostatic Discharge Susceptibility Data

ISO 9001, Quality Management Systems – Requirements

ANSI/ESD S20.20-2021

(This annex is not part of ESD Association Standard ANSI/ESD S20.20-2021)

ANNEX E (INFORMATIVE) – STATEMENT OF DIRECTION

These sections may be included in future revisions of ANSI/ESD S20.20. The sections are placed

here for information only and do not have to be implemented.

E.1 Component Threshold Plan

It is important to know what the human body model and charged device model classifications are

for any ESDS item that will come into the process. A plan should be established to determine,

before initial use, that ESDS item thresholds are within the scope of this standard.

The recommended test methods for establishing the HBM and CDM levels are ANSI/ESDA/JEDEC

JS-001 and ANSI/ESDA/JEDEC JS-002, respectively. Ideally, HBM and CDM thresholds would be

available and reported in component datasheets. For example, ANSI/ESD SP5.0 contains a

template for reporting ESD data.

NOTE: The following would be acceptable objective evidence by including the following question in

contractual agreements: "Are any components in this contract outside the scope of ANSI/ESD S20.20

(< 100 volts HBM; < 200 volts CDM)?". Alternatively, a similar question could be included in manufacturing

readiness reviews, design reviews, component datasheet reviews, or any other documented process for

obtaining component information

E.2 Process Assessments

The current version of the standard does not require any data to support claims of handling devices

with 100 volts HBM and 200 volts CDM sensitivities. In a future release of this standard, it is the

goal to require data to support the HBM and CDM claims. There currently are no standards or

standard test methods that can provide data to support the claims. A working group within the ESD

Association is working to provide test methods to "measure" the process. When these test methods

become available, there may be a requirement added to future revisions of this standard to provide

data related to the process capability of the installed ESD process.

Measurements may include, but are not limited to:

• The voltage on devices in the process

• The voltage on printed circuit boards while moving through the process

• Discharge current measurements

For more information, please see ANSI/ESD SP17.1, ESD Standard Practice for the Protection of

Electrostatic Discharge Susceptible Items - Process Assessment Techniques.