This document discusses life time testing, also known as highly accelerated life testing, which aims to accelerate product reliability during development. The testing subjects samples to various stresses, including thermal, mechanical, and other stresses, to identify weaknesses and determine safe operating limits in the shortest time possible. Common tests exposed products to conditions like low/high temperatures, temperature cycling, vibration, shock, and chemicals. The goal is to characterize equipment performance and reliability with only a small number of samples.

3. LIFE TIME TESTING
or
Highly Accelerated Life Test

4.  Scope of Life Time Testing
Type of Tests Performed
Equipment used in different industry
branches

5. Goals:
To accelerate product reliability during the
engineering development;
To identify the weaknesses using a small number
of samples (sometimes one or two but preferably
at least five) in the shortest possible time and at
least expense;
It characterizes the equipment under test, and
identifies the equipment's safe operating limits and

7. • Thermal stresses:
• Low/high temperature storage;
• Low/high temperature
operation;
• Temperature cycle with
specified temperature change
rate;
• Rapid change of temperature
with specified temperature
change rate;
• Composite
temperature/humidity cyclic

8. • Mechanical stresses:
• Sinus vibration
test and random
vibration with
temperature
change;
• Sinus vibration;
• Random
vibration;
• Mechanical shock;
• Drop test.

9. • Other stresses:
• Chemical loads;
• Protection against
foreign objects;
• Water intrusion;
• Connector pin
push/pull test.

11. All-axis
broadband vibration and
rapid thermal cycling

15. Q&A

16. Thank You !