摘要
阐述了边界扫描技术的基本原理,从设计方法和实现技术方面对基于边界扫描技术的芯片短断路检测设计进行了研究,并给出了具体的实现方法;以针对CPU为BGA封装的电路板设计了一套短路、断路故障检测平台为例,经验证,该设计有效地缩短了电路板的生产、周期,并且可排除PC独立运行,降低了其维修测试费用,因而将具有更为广泛的应用前景。
The basic principle of boundary scan technique is presented. The design for detecting the short or open circuit problem of integrated circuit chip based on the boundary scan technique is researched from designing method and realization technique. And some concrete implementing methods are given. An example is taken for designing a detecting system for the short or open circuit problem of the circuit board with Ball Grid Array（BGA） CPU. The result shows that, by using this method, the producing period of the circuit board with the BGA CPU can be effectively shortened, and the cost of maintenance and test can be reduced for off-line with PC. So it wiU be applied in more fields widely.
出处
《信息技术》
2008年第11期53-55,59,共4页
Information Technology
关键词
边界扫描
JTAG
BGA
电路板
短路
断路
boundary scan
JTAG
BGA
circuit board
short circuit
open circuit
