摘要
对0.7mm×1.2mm槽孔分别添加0.4mm、0.55mm导向孔,并分别添加在槽孔中心,距槽孔边1mil及与槽孔边相切,得出添加0.55mm导向孔并其与槽孔边相切时,槽孔孔形最为优良,并且在添加0.55mm导向孔时,其不同添加位置对槽长影响最为显著。
For the slot hole of 0.7mm× 1.2mm, appended the guiding hole with 0.4mm,0.55mm and each appended the center of the Slot hole, the lmil away the border of the slot hole and the tangency of the slot hole. The result when the 0.55mmwas in the tangency of the slot hole, the shape was the best and the length and the width was the most close to the data of the design; when appended the 0.55ram guiding hole ,the influence of the different position was the most prominent
出处
《印制电路信息》
2008年第9期29-31,共3页
Printed Circuit Information
关键词
槽孔
导向孔
位置
slot hole
guiding hole
position