As type 0603 chip resistance has the different resistance change rates in different locations,a laser trimming control strategy based on self-adaptive measuring length is presented.The laser trimming control strategy can choose measuring step adaptively by the percentage difference between resistance value and target values.Through experimental analysis,it can both improve the precision and the efficiency by comparing with the control strategy based on fixed measuring step.In order to be widely used in laser trimming of other type resistance,the modeling method of the control strategy was introduced.The strategy can be used after modeling when there is no clear relationship between cutting paths and resistance change rates.
参考文献
相似文献
引证文献
引用本文
封芸,金越越,梁进智.基于自适应测量步长的激光调阻控制策略[J].激光与红外,2016,46(11):1325~1328 FENG Yun, JIN Yue-yue, LIANG Jin-zhi. Laser trimming control strategy based on self-adaptive measuring step[J]. LASER & INFRARED,2016,46(11):1325~1328