The important parameters of GA and SA were designed carefully. For the first time, a genetic simulated annealing algorithm (GSA), which combines the advantages of the GA and SA, was employed to plan PCB assembly.

• 然后在改进的遗传算法中融入了模拟退火算法,首次把综合了遗传算法与模拟退火算法优点的遗传模拟退火算法应用于贴装工艺优化,详细设计了算法的关键参数和操作,基于遗传模拟退火算法实现了PCB贴装工艺优化程序,并进行了大量的仿真计算。