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一、问题的提出在1981年度3DG102B全国质量评比的高温贮存试验中,有35家厂家参加,投试验样品700支,失效87支,占投试数的12.4%.多数厂家的产品是由于V_(ces)的变化超差而失效,约占本项试验失效数的55.21%(48支).由此可见,产品在这方面存在的问题是比较严重的.从这些失效产品来看,多发生在使用银浆烧结工艺的厂家.而使用金锑烧结工艺方法的产品,V_(ces)比较稳定,也可以做得比较小.所以,有人认为,造成V_(ces)不稳定以致失效的主要原因,
First, the question raised In 1981 3DG102B national quality evaluation of high-temperature storage test, 35 manufacturers to participate in the cast test sample 700, the failure of 87, accounting for 12.4% of the number of investment test.Most manufacturers of the product is due to V_ ( ces) out of tolerance changes over the poor, accounting for the number of failures of this test 55.21% (48) .Therefore, products in this area there are more serious problems.From these failure products, occurred in The use of silver paste sintering process manufacturers.While the use of gold antimony sintering process products, V ces relatively stable, can also be done relatively small.So, it is believed that the main cause of instability caused by V ces,