Effect of temperature cycling stress profile on the thermal fatigue life of solder joints of QFP;

Application of in-situ stress profile to hydraulic fracturing;

In this paper, the stress profiles in thermal - cycle, random - vibration and thermal & vibration composition test are illustrated, which includes the selecting of different stresses, the defining of the stress magnitude and applying order of various stresses.

Drilling fluid circulating temperature plays a very important role in predicting the equivalent circulating density of drilling fluids and in determining safe density windows.

Bottom-hole circulating temperature not only directly impacting rheological properties,density and chemical stability of drilling fluid,etc.

It is important for the drilling and completion to learn about accurate distribution of circulating temperature in the wellbore.

This paper introduces techniques problems in the ultrasonic bonding of thick film spun gold and gold conductor,and tests the bonding performance of spun gold and gold conductor with the methods of the ruinous pull test and the thermal cycle test after indoor and environment tests.

In order to accomplish the environment stress screen of space borne infrared detectors and study the failure mechanism dur-ing the course of thermal cycle,the thermal cycle system,based on singlechip is introduced in this paper.

Thus such cryogenic semiconductor components as HgCdTe mid or long wavelength infrared(IR) detectors are subjected to thousands of repeated thermal cycles from below-173℃ to room temperature.