WG 3.0 – Ionization

The WG finished adjudicating TAS comments on ESD WIP3.4 during the five-year review. The document will be submitted to STDCOM vote before the September meeting.

The committee reviewed final updates to ANSI/ESD STM3.1 during the five-year review cycle. The document will be submitted for TAS review before the next meeting series. The group also drafted a new definition for peak offset voltage that will be sent to TAS for review.

The committee adjudicated TAS comments on the five year review revisions to ANSI/ESD STM3.1. The WG also continued reviewing ANSI/ESD SP3.3 and a demo on ION master was presented.

WG focused on the review of the TAS comments on STM3.4 “Periodic Verification of Air Ionizer Performance Using a Small Test Fixture”. Document is going through an update on the 2016 version.

STM 3.1, “Ionization” is also going through an update process with initial Industry Review comments being reviewed and changes being made.

WG focused on the review of STDCOM comments on ANSI/ESD SP3.4 “Periodic Verification of Air Ionizer Performance Using a Small Test Fixture” and made any necessary changes. ANSI/ESD STM 3.1, “Ionization”, is also going through an update process, with initial STDCOMV VBM comments being reviewed and changes being made.

The WG reviewed the STDCOM comments on WIP3.1, “Ionization”, adjudicating some comments. Comments will be returned to headquarters once the adjudication process is complete.

WG adjudicated STDCOM comments on ESD WIP3.1 – Ionization and addressed all should vs. shall statements – except for reporting requirements.

Discussion on reporting requirements:

• Generally, poorly defined requirements for reporting.
• Lengthy discussion on offset voltage - discharge time doesn’t specify reporting requirements.
• Recommend adding a section for each type of ionizer, while aligning with ‘Minimum Reporting Requirements’.

The WG agreed to submit the existing version of ANSI/ESD STM3.1 for re-affirmation while working on a major revision to the document. The WG also agreed that the structure of the suite of 3.0 documents needs to be revised – many documents need revision/renaming etc.  Sections of the SPs with compliance verification need to be moved to TR53.

The agenda may change based on my meeting with TAS on Monday, but this is a rough set of goals.

The committee reviewed the proposed strategy for realigning ionization documents. The group provided feedback on the proposed "in-tool" blower test method and addressed related questions. The WG started reviewing a revised STM3.1 document, discussing the limitations of current test equipment and the importance of advancing toward better equipment. The group reviewed the layout of the new document.

The group discussed the reaffirmation of STM3.1, stating it would be published in the coming weeks. They also addressed concerns about moving periodic verification information into TR53 but didn't resolve the issue. The withdrawal of SP3.3 & 3.4 was postponed until the rewrite of STM3.1 is completed. Additionally, a proposal to simplify the layout of STM3.1 was reviewed.

Summary of discussions/activities/document reviews during the most recent WG meeting:

• ANSI/ESD STM3.1 has been released after being re-affirmed.
• A review of a proposed layout with some new layout structures was reviewed. Comments from the working group indicated that a more simplistic approach may be required since this is a “Qualification Test Method Document.”
• A small investigation group to look at the metrology portion of the document was developed and will work offline to address this concern.

The committee reviewed a proposed new annex for ANSI/ESD STM3.1 on CPM performance related to high-frequency ionization.

Summary of meeting activities: 

The committee reviewed the new WG3 SharePoint Site. The committee also reviewed the status of ANSI/ESD SP3.5 which was published in January 2021. The group also continued working on the five-year review of ANSI/ESD STM3.1. 

Summary of meeting activities:

The committee reviewed the status of ESD WIP3.5 and solicited industry reviewers. The committee continued the five-year review of ANSI/ESD STM3.1 including reviewing industry questions received for ANSI/ESD STM3.1 to determine if there was information that could be added/clarified.

Summary of meeting activities:

The committee reviewed and edited a new annex in ANSI/ESD STM3.1 on high-frequency ionization. A work statement was also started for a new document on high-frequency ionizers.

Summary of meeting activities:

A presentation was given on a new to market tool for ionization measurements. Another presentation was given on limitations and how current charged plate monitors (CPM) can be misleading. The committee started the five year of ANSI/ESD STM3.1 with discussion regarding adding an annex for CPM limitations and proper oscilloscope set-up. The group is also discussing a new technical report on CPM limitations and ionizer technologies.

Summary of meeting activities:

The committee finished adjudicating TAS comments on ESD TR3.0-01 and STDCOM vote comments on ESD WIP3.5.

Summary of meeting activities:

The committee reviewed the adjudication of STDCOM vote comments on ESD WIP3.5. The document will be submitted for industry review. TAS comments on ESD TR3.0-01 were also adjudicated and a review of ESD TR3.0-02 was started.

Summary of meeting activities:

The committee finished adjudicating STDCOM vote comments on ESD WIP3.5.

Summary of meeting activities:

A presentation was given on ionizer measurement pitfalls. A new technical report may be developed to discuss problems with CPMs not being able to capture true peak values depending on ionizer frequency. The committee started adjudicating STDCOM vote comments on ESD WIP3.5.

Summary of meeting activities:

The working group completed follow-up adjudication of comments on ESD WIP3.5 and the document will be submitted for consensus body review and vote. The group adjudicated TAS comments on ESD TR3.0-01 and will send back to TAS for a second review. A review of ESD TR3.0-02 was also started including the incorporation of supplemental information from ESD WIP3.5. Further discussions will take place at the September face-to-face meeting.

Summary of meeting activities:

The working group completed adjudication of comments on ESD WIP3.5 and the document will be submitted for consensus body review and vote. The group reviewed the status of ESD TR3.0-01 and will continue editing the document at the June virtual meeting series. There was also brainstorming discussions on future topics.

Summary of meeting activities:

The group adjudicated technical advisory and support committee comments for ESD WIP3.5.

Summary of meeting activities:

The committee discussed x-ray safety enclosure concerns relative to the new standard practice document currently being developed. The committee also reviewed the current document for ESD WIP3.5 - test methods for air assist bar ionizer, soft x-ray (photon) ionizers, alternative room ionization, and non-airflow alpha ionizers. The document is scheduled for review by the technical and advisory support committee before the September meeting series.

Summary of meeting activities:

The committee finished adjudicating technical comments from the Technical and Advisory Support Committee on ESD WIP3.5 (formerly ESD TR3.0-03) – ionization for flat panel displays. A section was added on testing non-airflow alpha ionizers and other sections will be reviewed for clarity at the next meeting.

Summary of meeting activities:

The committee started reviewing TAS comments on ESD WIP3.5 (formerly ESD TR3.0-03) – ionization for flat panel displays and will continue adjudication at the April face-to-face meeting.

Summary of meeting activities:

The committee continued reviewing revisions to ESD TR3.0-02 - Selection and Acceptance of Air Ionizers. ANSI/ESD SP3.3 – Periodic Verification of Air Ionizer Performance and ANSI/ESD SP3.4 - Periodic Verification of Air Ionizer Performance Using a Small Test Fixture were submitted to the Standards Committee for reaffirmation with no technical changes and will be published in early January 2017.

Summary of meeting activities:

The committee continued the five-year review of ANSI/ESD SP3.3 and ANSI/ESD SP3.4 as well as the review of ESD TR3.0-01-02 and ESD TR3.0-02-05 for currency and accuracy. The committee approved ANSI/ESD SP3.3 and ANSI/ESD SP3.4 for reaffirmation and minor editorial changes to ESD TR3.0-01. The committee is continuing updates and revisions to ESD TR3.0-02.

Summary of meeting activities:

The committee continued the five-year review of ANSI/ESD SP3.3 and ANSI/ESD SP3.4 as well as the review of ESD TR3.0-01-02 and ESD TR3.0-02-05 for currency and accuracy. The committee will continue the document reviews at the July virtual meeting.

Summary of meeting activities:

The committee began the five-year review of ANSI/ESD SP3.3 and ANSI/ESD SP3.4 as well as the review of ESD TR3.0-01-02 and ESD TR3.0-02-05 for currency. The committee will continue the document reviews at the April meeting series.