CIS ESD Control & Protection Flashcards
6 cards from real CIS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CIS ESD Control & Protection flashcards as text
What does 'ESD' stand for in electronics manufacturing?
Answer: Electrostatic Discharge
ESD stands for Electrostatic Discharge, which is the sudden flow of electricity between two objects with different electrostatic charges.
Which IPC/ESD standard governs ESD control programs for electronics manufacturing?
Answer: ANSI/ESD S20.20
ANSI/ESD S20.20 is the primary standard for developing ESD control programs for electronics manufacturing environments.
What is an EPA (ESD Protected Area)?
Answer: A designated zone where ESD-sensitive devices are handled with ESD control measures in place
An EPA is a defined area where ESD-sensitive devices are handled and all personnel, equipment, and materials meet ESD control requirements.
What is the typical surface resistance range for ESD dissipative materials?
Answer: 1 × 10⁴ to 1 × 10¹¹ ohms/square
ESD dissipative materials have a surface resistance of 1 × 10⁴ to 1 × 10¹¹ ohms/square, allowing slow, controlled discharge of static charges.
Which ESD failure mode occurs when a device appears to function but has hidden latent damage from a prior ESD event?
Answer: Latent defect
A latent defect is hidden damage from an ESD event that does not immediately cause failure but may cause the device to fail prematurely in the field.
A wrist strap used for ESD protection should be tested:
Answer: Before each use or at the beginning of each shift
ESD wrist straps should be tested before each use or at the beginning of each shift to verify continuity and proper grounding function.