Accelerated Thermal Shock Test

Thermal shock testing is an accepted method to check the reliability of longitudinal holes and solder joints. Historically, thermal shock testing has been carried out using dual-chamber air-to-air systems or liquid-to-liquid systems. Both of these methods offer significant disadvantages when cost, time and samples need to be moved between hot and cold environments.

Transport of samples between temperature environments makes it difficult and incorrect to monitor the resistance of the samples due to the length and quantity of the wires. Rare monitoring, often associated with traditional thermal shock methods, makes the detection of “hitch” conditions best marginal.

HATS ™ Bore Hole Reliability Test Technology has been recognized and used since 2003. The HATS ™ system mimics traditional air-to-air testing methods, while significantly reducing the disadvantages of traditional methods. The test uses a single chamber where high volume hot and cold air passes through fixed samples. High volume air flow provides fast thermal transfer to the device under test (DUT) and reduces the time for DUT to reach the temperature balance. This greatly reduces the time required for each cycle, and fixed samples are easily configured to the high-speed precision resistance sampling network. HATS ™ test systems meet the test parameters of MIL-STD-202; Method 107 and IPC-TM-650; Test Method for thermal shock and continuity for printed circuit boards 2.6.7.

The HATS ™ system has a maximum and minimum temperature capacity of 160 ° C and -55 ° C, respectively. With a full chamber load of 36 0.62 inch thick coupons, the system has a temperature transition rate of 26 ° C per minute. The system receives sensitive resistance data from test coupons.

The HATS ™ tester performs 1000 cycles of 36 coupons / 144 networks in less than a week.

• Temperature cycles from -55 ° C to + 160 ° C
• 36-Coupon chamber capacity
• Automatic hole, blind, burial and stacking production through buildings
• Lower test costs than dual chamber systems
• Reduce cycle times by 50% to 80%
• Detailed test report including jagged box graphics and Weibull analysis

In addition to providing HATS testing services, EUROLAB has a full-size reflow furnace for “lifelike” reflow simulations and is capable of performing post-HATS test failure analysis. You can contact us to discuss the HATS test program.