多管芯并行测试的熔丝修调方法探索

摘要

随着熔丝在电路设计中的应用普及，测试环节对熔丝修调的要求也越来越高，对测试人员提出了更大挑战。修调熔丝的目的是为了获得更精确的电压、频率或其他特性。为了提高测试效率，需要在多管芯并行测试的情况下，提高熔丝修调的准确性和修调速度。文章介绍了常见的熔丝特性及典型熔丝类集成电路在多管芯并行测试情况下的熔丝修调方法，并进一步研究了降低修调环节对测试系统资源的占用、提高修调效率、简化测试程序等几个方面的优化方法。%The popularization of making fuse in IC design needs development of trimming method and test engineer. The target of trim fuse is getting more accurate voltage or frequency or other parameter. The tnicety and speed of trimming fuse is very important for improve test efficiency with multi-site test. This paper introduce some characteristics of common fuse, general trimming methods and programmes with multi-site test and some optimize method, for example, reduce engrossment of resource in test system, improve trimming efifciency.