What do you mean by board test stinks?

In printed circuit board manufacturing we have generally talked in terms of yield at the end of the manufacturing line. But as the yields has improved over the last 10-15 years from the mid 80´s to the high 90´s yield has become lest relevant and a real measure of quality of the end product become increasingly important. In-circuit test, which is primarily an electrical test system is still trying to find electrical faults but has focused more on finding manufacturing faults. Automatic optical inspection and automatic X-ray inspection has also supplemented in-circuit test.