1 SCOPE AND PURPOSE
1.1 Scope
1.1.1 Existing data
1.2 Purpose
2 REFERENCES
3 DEFINITIONS
3.1 Component
3.2 Component failure
3.3 Data sheet parameters
3.4 Electrostatic discharge sensitivity (ESDS)
3.5 ESD withstand voltage
3.6 Human body model (HBM) ESD
3.7 Machine model (MM) ESD
3.8 MM ESD Tester
3.9 Positive clamp socket
3.10 Ringing
3.11 Step stress hardening
4 MM ESD COMPONENT CLASSIFICATION
5 REQUIRED EQUIPMENT
5.1 MM ESD Tester
5.2 Waveform verification equipment
5.2.1 Oscilloscope
5.2.2 Evaluation loads
5.2.3 Current transducer
6 EQUIPMENT, WAVEFORM AND QUALIFICATION REQUIREMENTS
6.1 Equipment calibration
6.2 Tester qualification and requalification
6.3 Tester fixture board qualification
6.4 Daily tester functionality check
7 QUALIFICATION AND VERIFICATION PROCEDURES
7.1 Waveform capture procedure
7.2 Tester qualification and requalification procedure
7.3 Tester fixture board qualification procedure
7.4 Daily tester functionality check procedure
8 MM TESTING REQUIREMENTS
8.1 Component handling
8.2 Component static and dynamic tests
8.3 Test temperature
8.4 Sample size
8.5 PIN combinations
8.5.1 Pin combinations for discrete components and component
arrays
9 MM ESD STRESS TESTING PROCEDURE
10 CLASSIFICATION CRITERIA
APPENDIX A: EXAMPLE OF PIN COMBINATION USING TABLE 2
APPENDIX B: MM STM5.2 PROCEDURE FLOW
List of Tables
TABLE 1: MM ESDS COMPONENT CLASSIFICATION
TABLE 2: PIN COMBINATIONS
TABLE 3: MM ESD STRESS LEVELS
List of Figures
FIGURE 1: TYPICAL EQUIVALENT MM ESD STRESS TEST CIRCUIT
FIGURE 2: CURRENT WAVEFORM THROUGH A SHORTING WIRE
FIGURE 3: CURRENT WAVEFORM THROUGH A 500 OHM RESISTOR