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随着计算机功能和速度的提高,半导体技术的发展,插件变的复杂多了,对插件测试技术提出了新的挑战。传统的功能测试方法已经不能适应新的需要,改革测试方法势在必行。近些年来,国外测试技术发展很快,在计算机的生产线上和设计部门,普遍地使用了线内测试设备和功能测试设备,有的设备则既能进行线内测试也能进行功能测试。线内测试不仅能测试数字电路,还能测试摸拟电路,以及 ADC,DAC 和 COME C等电路。线内测试设备检查故障的复盖率在95%以上,并能准确地进行故障定位。在线内测试的基础上再进行功能测试,功能测试大大地简化了。显然,采用了这种测试设备之后,不仅提高了插件测试效率,而且对于计算机的可靠性,可维修性和可使用性有很大地提高,减少了手工劳动,本文主要是介绍几个有名厂家的产品,简单的工作原理,夹具等。
With the improvement of computer functions and speed, the development of semiconductor technology and plug-in become more complex, which poses new challenges for plug-in testing technology. The traditional method of functional testing can no longer meet the new needs, reform testing methods is imperative. In recent years, foreign test technology has developed rapidly in the computer production line and the design department, the widespread use of in-line test equipment and functional test equipment, and some equipment can both in-line test can also function test. In-circuit testing can not only test digital circuits, but also test analog circuits, as well as ADCs, DACs, and COME C circuits. In-line test equipment inspection failure coverage rate of 95% or more, and can accurately locate the fault. Based on the on-line testing, functional testing is performed and the functional testing is greatly simplified. Obviously, using this test equipment, not only improves the plug-in test efficiency, but also greatly improves the reliability, maintainability and usability of the computer, reducing manual labor, this article is mainly introduced to several well-known manufacturers Products, simple working principle, fixtures and more.