Avant Reliability Program

Avant performs reliability checks for all of its products. Some of the check activities are performed in-house; some are at subcontractor's sites; some are subcontracted to officially authorized organizations or companies. Generally, reliability tests are categorized into 3 categories: Environmental Stress, Mechanical Stress, and Electrical Stress.

Environmental Stress

Test Item	Referred standard	Test conditions	Purpose of the test
Temperature cycling	MIL-STD-883C-1010.7 EIAJ ED-4701B-131	- 65 °C to 150 °C	Check device's resistance to the cycling change of temperature from high extreme to low extreme.
Thermal shock	MIL-STD-883C-1011-7 EIAJ ED-4701-B-141	0 °C to 100 °C	Check device's resistance to abrupt, rapid change in temperature.
High-temperature storage	MIL-STD-883C-1008.2 EIAJ ED-4701B-111	Tamb= 150 °C	Check device's resistance to high-temperature storage environment.
Low temperature storage	EIAJ ED-4701B-112	Tamb= -65 °C	Check device's resistance to low-temperature storage environment.
Moisture resistance	EIAJ ED-4701B-121	Tamb= 85 °C, 85% RH	Check device's resistance to an environment with high temperature and high relative humidity, for a long period of operation and storage.
Salt atmosphere	EIAJ ED-4701B-144 MIL-STD-202F-101D	35 °C, 5% brine spray, 48 hours	Check device's resistance to corrosion in a salty environment, such as costal area.
Pressure cooker	EIAJ ED-4701B-123	2 atmospheric pressures, 121 °C.	Check device's resistance to accelerated humidity change.
Resistance to high temperature during soldering	EIAJ ED-4701-A-132, A-133	260 °C, 10 seconds (solder bath)	Check the device's resistance to high temperature during soldering.
Resistance to chemical corrosion from solvents	EIAJ ED-4701C-131 MIL-STD-883C-2015-8	Isopropyl alcohol, 10 minutes	Check device marking's resistance to solvent. (only applicable to printed marking; laser marking may be used for some devices.)
High-temperature operating	EIAJ ED-4701D-101 MIL-STD-883C-1005-6	Tamb= 125 °C, steady operation	Check device's durability of operation with both electrical stress and thermal stress applied for a long period of time.
Moisture resistance ( with bias)	EIAJ ED-4701B-122	Tamb= 85 °C, 85% RH, rated voltage applied	Check the device's durability in an environment with high relative humidity.

Mechanical Stress

Test Item	Referred standard	Test conditions	Purpose of the test
Vibration variable frequency	MIL-STD-883C-2007-1 EIAJ ED-4701A-121	100 Hz to 2K Hz. 4 minutes/back and forth 4 times for each of X, Y, Z (at 20 G)	Check device's resistance to vibration during transportation or operation.
Vibration fatigue	MIL-STD-883C-2005-2 EIAJ ED-4701A-121	60Hz, 20G, 32 hours, for each of X, Y, Z	Check device's resistance to vibration during transportation or operation.
Mechanical shock	EIAJ ED-4701A-124	75 cm, 3 times, 3 falls for each of X, Y, and Z.	Check device's resistance to shocks which the device may experience during installation, transportation, or operation.
Lead integrity	EIAJ ED-4701A-111 MIL-STD-883C-2004-5	Tension 0.3 Kg, 10 seconds.	Check device's resistance to forces to which the device's leads may be subjected during installation or operation.
Lead integrity	EIAJ ED-4701A-111 MIL-STD-883C-2004-5	90° bending, 2 cycles	Check device's resistance to forces to which the device's leads may be subjected during installation or operation..
Solderability	EIAJ ED-4701A-131 MIL-STD-202E-208E	230 °C, 5 seconds, flux used	Check device lead's solderability.

Electrical Stress

Test Item	Referred standard	Test conditions	Purpose of the test
ESD (Human Body Model)	EIA JESD 22--A114-13	4000 volts	Check device's resistance to electrostatic charge.
ESD (Machine Model)	EIA JESD 22-A115	300 volts	Check device's resistance to electrostatic charge.
Latch-up	EIAJ ED-4701A-124	250 mA	Check device's resistance to latch-up triggering current.