GSFC Electrostatic Discharge (ESD) Control Program Are you plugged in? Jeannette Plante, Program Manager, Code 300

1. GSFC Electrostatic Discharge (ESD) Control Program Are you plugged in? Jeannette Plante, Program Manager, Code 300

2. Why Do ESD Events Occur? Electrical charge spreads across a surface and builds up. Once the item comes in contact with an electrical ground, the charge has a circuit to move in and a Discharge occurs: Person touches electronic part or electronic board Electrical cables are attached to instrument Soldering iron touches electronic part lead Electronic board is placed on shelf or table An electronic part slides out of a shipping tube onto a workbench surface The moving charge is current. When current moves in a medium heat is produced. High current can destroy the circuit path (“fuse”). Sensitive electronics in the circuit path will be destroyed by high discharge currents. An electronic Part’s sensitivity to ESD is called its ESD Sensitivity Level.

3. An ESD event is a sudden discharge of stored voltage (charge) through a circuit path to ground. ESD damage can result in instantaneous or delayed failure. Working conditions determine event type. Event type determines protection method. Source: White Paper 2: A Case for Lowering Component Level CDM ESD Specifications and Requirements, Industry Council on ESD Target Levels, March 2009

5. The goal is to: • Prevent charge accumulation • Charge accumulation is avoided, electric fields are monitored and controlled. • Enable accumulated charge to discharge with a controlled, low current. • Dissipative materials are used to enable accumulated charges to readily find a “gentle” discharge path that keeps current low.

6. Ground connections Furniture Humans Test Equipment Surface resistance Neutralizing charge Ionizers Humidity Operator behaviors Assurance methods Verifications Certifications Records Training Special methods

7. ESD Sensitivity Level Designations GSFC-WM-001 Uses HBM Class 1A as a default for certified EPAs. GSFC-WM-001 provides controls for HBM Class 0 if needed. Subject Matter Expert help should be sought for CDM protections CDM does not correlate with HBM and is still evolving Avoid making “Class 0” a colloquial term for “super sensitive” This may prevent the right type of control methods from being used.

8. NASA Quality Assurance Program Policy (NPD 8730.5) ANSI/ESD S20.20 for ESD Control The Organization shall establish, document, implement, maintain and verify the compliance of the ESD Control Program in accordance with requirements of this document. GSFC Policy for Electrostatic Discharge Control (GPR 8730.6) GSFC shall use ANSI/ESD S20.20 and shall have a plant-specific implementation plan. All projects shall impose ANSI/ESD S20.20 or GSFC-WM-001. ESD Control program used for HBM 1C or more sensitive (and most CDM sensitivity levels). GSFC-WM-001 applicable to mission hardware including EM and critical GSE. R&D may choose not to apply but must document this decision. In-house builds only GSFC-WM-001, Workmanship Manual for Electrostatic Discharge Control (Excluding Electrically Initiated Explosive Devices)

9. Where is GSFC-WM-001 ?!? It’s not in GDMS GSFC-WM-001 lives in the Code 300 configuration management system. An easy link to remember is: http://sma.gsfc.nasa.gov/workmanship/ Then click on Useful Links

10. Branch/Division Role vs Project Role • Branch/Division • Provides certified personnel • Provides certified facilities • Maintains certified facilities • Provides equipment resources to EPA managers and users • Stores and re-uses ESD control equipment • Facilitates personnel mentoring and provides subject matter expertise • Provides procedures and local training as applicable. • Project • Flows down requirement • Covers cost of EPA resources (equipment, supplies, procedures) where need exceeds lab’s internal resources. • Establishes tolerance for risk, process requirement waivers as applicable • Defines impact of ESD damage and potential ESD damage

11. GSFC-WM-001 : Are You a Participant? • Program Manager: Manages program including ownership of GSFC-WM-001 and GPR 8730.6; certifies ESD protected areas (EPA) (Code 300) • Level A Trainer: Trains Operators, Program Monitors, Level B instructors. • EPA Certifier: Certifies EPAs (Code 300, 800) • Subject Matter Expert: Helps navigate non-standard conditions (Code 300, 500, 600). • Workmanship ---------------------------------------------------------- Branch Personnel • Lab Owner: Provides resources, assignments, points to correct training, accountable for all operations in labs • Program Monitor: Local owner of ESD protected area (EPA), designs and safeguards EPA, monthly verification measurements, special training, retraining biennially (Code 200, 500, 600) • Operator: Local user of an EPA, special training, retraining biennially (Code 200, 300, 400, 500, 600) • Level B Trainer: Trains personnel from their company or subcontractors • I&T ESD Lead: Defines control methods and procedures during I&T

12. Training GSFC School   http://www.honeywell.com/workmanship Operator: 4 hr class, overview, demonstrations [ESD] Program Monitor: 12 hr class, overview, hands-on exercises, demonstrations. Requiredfor Bench Certification Level B Instructor: 16 hr class, overview, hands-on exercises, demonstrations, instruction materials provided Lab Owners: 1 hr class, overview of program, roles and responsibilities I&T ESD Lead: in development Classes held on Center and in Columbia Instruction is to GSFC-WM-001

14. Laboratory Quality Improvement Team • Collaborative effort including Code 300, 400, 500, 600, 800 • Strengthening process ownership, consistency and compliance across all labs • Focus now is ESD, Calibration, Pressure Vessel Certification. Adding Lifting Devices, Workmanship • Assessing each lab on Center to: • educate lab owners about requirements • provide opportunity to correct before audit by internal or external auditors • Feedback to process technical authority (e.g. Workmanship group for ESD) • Project start was May 2011. Expect to take several years to visit each and every lab on Center. • Urgencies identified in the ESD area: • Lab owner awareness • Training effectiveness • Missing content in GSFC-WM-001 • Garment process not fully effective

15. Questions?