【摘要】 印制板背钻树脂塞孔通常存在孔口爆孔问题，直接影响产品的品质。文章分析了孔口爆孔的产生原因，通过试验验证，得出产生塞孔孔口爆孔的主要影响因素，并针对性给出了孔口爆孔的改善对策。更多还原

【Abstract】 Resin plugging process of back drill always exists hole damage problems for PCB, which directly impacts on the quality of the products. In this paper, the causes of hole damage are analyzed, the main influencing factors are found through experimental verification, and the improvement countermeasures of hole damage are proposed.更多还原