![]() In the early 1960s, NTT introduced a failure physics approach (also known as the physics of failure), described in the next section, in order to develop highly reliable semiconductor devices for telecommunications equipment. ![]() ![]() At that time, NTT was the first company in the world to introduce transistors into telecommunications equipment –. Therefore, it was not really known how reliable semiconductor devices would be, and experience in using them in telecommunications equipment was lacking. In the 1960s, the semiconductor industry was in its infancy. ![]() From the 1960s to the 1980s, NTT’s use of semiconductor devices was the primary factor in the successful development of highly reliable and miniaturized high-performance telecommunications equipment. ![]()
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