发光学报2018，Vol.39Issue(3)：343-348,6.DOI:10.3788/fgxb20183903.0343
半导体激光器巴条封装应力及评价
Evaluation of Packaging Induced Stress of Semiconductor Laser Bar
摘要
Abstract
In order to detect the packaging induced stress of semiconductor lasers quickly and effec-tively,an experimental device which can reveal the encapsulation stress by detecting the polarization degree of each unit of laser bar was designed. The parameters of the semiconductor laser bar were experimentally tested and the finite element software was used to simulate the relationship between the degree of polarization and the packaging induced stress through the theory of the semiconductor energy band and stress. The experiment results show that the individual light-emitting unit of the bar is less polarized,the higher threshold current is due to the larger packaging stress. Through the cal-culation,the packing stress is 141.92 MPa, and the polarization equivalent stress is 26.73 MPa. The degree of polarization of the device below the threshold reflects the distribution trend of the packaging induced stress,and the degree of polarization of the device can be measured by using the following threshold current. It can provide a quicker and more efficient method for selecting the heat sink and the solder material and the improvement of the welding process parameters.关键词
巴条/偏振度/封装应力/偏振等效应力Key words
laser bar/polarization/packaging induced stress/polarization equivalent stress分类
信息技术与安全科学引用本文复制引用
张哲铭,薄报学,张晓磊,顾华欣,刘力宁,徐雨萌,乔忠良,高欣..半导体激光器巴条封装应力及评价[J].发光学报,2018,39(3):343-348,6.基金项目
国家重点研发计划(SQ2017YFGX020046) （SQ2017YFGX020046）
国家自然科学基金(61176048,61177019,61308051) （61176048,61177019,61308051）
吉林省科技发展计划(20150203007GX,20160203017GX,20170101047JC,20170203014GX)资助项目 Supported by National Key Research and Development Program of China(SQ2017YFGX020046) （20150203007GX,20160203017GX,20170101047JC,20170203014GX）
National Natural Science Foun-dation of China(61176048,61177019,61308051) （61176048,61177019,61308051）
Jilin Province Science and Technology Development Plan(2050503007GX,20160203017GX,20170101047JC,20170203014GX) （2050503007GX,20160203017GX,20170101047JC,20170203014GX）
