An apparatus which performs tests on a device known as device under test which also makes use of automation to perform quickly measurements and thus to evaluate the test result is known as automated test equipment which is symbolized through ate. This ate is simple computer controlled digital multi meter or can also be a complicated system which contains dozens of complex tests instruments which are very much capable of automatically testing and diagnosing faults sophisticated electronic packaged parts. These automatic testers are widely used in electronic manufacturing industries which are used for testing electronic components and systems which are fabricated and are also used for testing avionics and the electronic modules in automobiles.Automatic testers are widely used in military applications like radar and wireless communication, also in semiconductor industry where it tests a wide range of electronic components and systems like that of resistors, capacitors and inductors, integrated circuits and printed circuit boards. These ate systems are designed to reduce the amount of test time which is needed to verify the particular device works or quickly finds fault before the part has to be changed which is used in the final consumer product. Components of these automatic testers are industrial pc, mass interconnect etc these testers are very much utilized in the construction of prototypes and new products and also in its maintenance, troubleshooting and these automatic testers play an important role for electronics tests today as it enables printed circuit board test and equipment test which are to be taken very swiftly which is more faster than it is done by manually.
This automatic test equipment is very much expensive and therefore it becomes necessary to ensure that the correct philosophy and relevant type of automatic test equipments are utilized or used. The wide variety of automatic test equipment systems are automatic optical inspection, automated x- ray inspection.