What are the accelerated aging tests for electronic components?
It mainly has three parts:Physical property test items/Mechanical integrity test items/Accelerated aging test
Physical property test items
1. Internal water vapor: Determine the water vapor content in the gas inside the metal or ceramic encapsulated optoelectronic device.
2. Sealing: Determine the airtightness of the optoelectronic device package with internal cavity.
3. ESD threshold: Determine the sensitivity and sensitivity of optoelectronic devices to damage and degradation caused by electrostatic discharge.
4. Flammability: Determine the flammability of materials used in optoelectronic devices.
5. Shearing force: Determine the integrity of materials and processes used in the mounting of optoelectronic device chips and passive devices on the tube base or other substrates.
6. Solderability: Determine the solderability of the optoelectronic device leads that need to be soldered
7. Wire bonding strength: Determine the wire bonding strength of optoelectronic devices using low temperature welding, hot compression welding, ultrasonic welding and other technologies.
Mechanical integrity test items
1. Mechanical shock: Determine whether the optoelectronic device can be used in electronic equipment that needs to withstand moderately severe impact. The impact may be caused by sudden force or severe vibration during loading, unloading, transportation or on-site use.
2. Frequency conversion vibration: Determine the impact of vibration on each component of the optoelectronic device within the standard frequency range.
3. Thermal shock: Determine the resistance and the role of optoelectronic devices when subjected to drastic temperature changes.
4. Durability of insertion and extraction: Determine whether the optical fiber connector of the optoelectronic device is inserted and removed, and whether the optical power, loss and reflection meet the repeatability requirements.
5. Storage test: Determine whether optoelectronic devices can withstand transportation and storage at high and low temperatures.
6. Temperature cycling: Determine the ability of optoelectronic devices to withstand extremely high and extremely low temperatures, and the effect of alternating changes in extremely high and extremely low temperatures on optoelectronic devices.
7. Constant damp heat: Determine whether sealed and unsealed optoelectronic devices can withstand the specified temperature and humidity at the same time.
8. High temperature life: determine the failure mechanism and working life of optoelectronic devices at high temperature accelerated aging.
Accelerated aging test
Apply high temperature, high humidity and a certain drive current to the optoelectronic device to accelerate aging. According to the results of the test, it is determined that the optoelectronic device has function and loss of function, as well as reception and rejection, and the working conditions of the optoelectronic device can be adjusted and the reliability can be calculated.
1. High-temperature accelerated aging: the most basic environmental stress-type high temperature during the accelerated aging process. During the experiment, the selected parameters should be monitored regularly until the degradation exceeds the end of life.
2. Constant temperature test: The constant temperature test is similar to the high temperature operation test, and the number of constant temperature test samples and the number of allowed failures should be specified.
3. Variable temperature test: The high temperature accelerated aging test of changing temperature is to gradually increase the temperature in sequence according to the order (for example, 60℃, 85℃ and 100℃)
4. Temperature cycle: In addition to the temperature cycle of the optoelectronic device as an environmental stress test, the temperature cycle can also accelerate the aging of the tube electronic device. The purpose of accelerated aging of temperature cycles is generally not to cause degradation of specific performance parameters, but to provide an additional explanation of the long-term mechanical stability of the optical path encapsulated in the component.
Sanwood Technology specializes in the production of environmental test euipments we design, produce and sales test chamber for different industry in different countries. We warmly welcome foreign friends to consult and we will provide you with answers, and even provide solutions.