PCB板激光直接物标高密度微型二维码  

Laser Direct Part Marking High Data Density Micro 2D Code in PCB

作　　者：张玲玲[1,2,3] 朱德祥[1,2,3] 吴磊[1,2,3] 王健超[1,2,3] 姜兆华[1,2,3] 张伟[1,2,3] 潘涌[1,2,3] 孙海娟 

机构地区：[1]上海市激光技术研究所,上海200233 [2]上海激光直接物标溯源工程技术研究中心,上海200233 [3]上海市激光束精细加工重点实验室,上海200233 [4]泰尔盾(上海)标识技术有限公司,上海201203

出　　处：《应用激光》2013年第4期444-448,共5页Applied Laser

基　　金：上海市科委资助项目(项目编号:11DZ1121100;2011-109;11511501500;11DZ2281400);上海市经信委资助项目(项目编号:12XI-07)

摘　　要：在PCB板上标记已经成为电子生产中产品追踪控制以及追溯所不可缺少的一种工艺手段。当前的一维条码技术及纸质标签正面临着诸多困难，而激光直接物标技术在PCB表面直接标识2D码是一种可行的非常灵活的标识方法，且不对PCB表面造成损伤。采用稳定低价的CO2激光物标系统，通过标识方法、激光功率、激光速度等参数的优化，精心设计了一套适用于在PCB上标识高密度微型2D码的标识方法，实现在2mm×2mm上编入20-25位数字的信息，识读率达99％。The labeling of marking is an important processing step for the PCB industry that allows tracing and controlling of their products. The current 1D code techniques and paper labels have several disadvantages, e.g. lack of permanency, limited adhesion and less information. Laser direct part marking on the surface of PCB is a very flexible method that allows permanent marking of PCB with high data density micro 2D codes. The feasibility of this technique was proven by determining the influence of key parameters such as laser power, laser marking speed and laser wavelength. In the article, the 2 mm × 2 mm encoding 20 to 25 digit numbers micro data matrix code was marked on PCB by using CO2 laser marker and optimizing laser processing. The readability is 99%;

关 键 词：激光直接物标 PCB 高数据密度 微型二维码 

分 类 号：TG178[金属学及工艺—金属表面处理]