_弧度认识.doc

BGA WIRE BOND 页数: 1 弧度的认识 (一).弧度介绍： Standard loop：(标准弧度) Set span length to 0. Loop height and delta loop Control the loop height. (span length设定0,由loop height and delta loop控制 弧高) Worked loop：(工作弧度) Start with span length at 5%,smoothness at 45%,and Shape factor at 25%.The smoothness parameter will Control where the second kink in the wire occurs. Shape factor will control the height of the second Kink.loop height and delta loop control the loop Height. (工作弧度的起始5%是span length,45%是smoothness,25% 是shape factor.smoothness parameter将控制线发生第二 颈部的地方,shape factor将控制第二颈部的弧高.loop height 和delta loop控制弧高.) BGA loop：(BGA 弧度) Start with span length at 70%,smoothness at 40%,and Shape factor at 25%. span length will control how far the from first bond the span of the wire occurs. smoothness control the radius of the span,and shape factor will set the height of the span.loop height and delta loop control the loop Height. BGA WIRE BOND 页数: 2 (BGA弧度的起始70%是span length,40%是smoothness,25% 是shape factor.span length将控制从第一棒到弧度发生, 而span的大小将可控制到弧度发生的多远距离.smoothness 将控制span范围,shape factor将设定span的高度.Loop height 和delta loop控制弧高.) Start Key(Press) Start Key(Press) Start Key(Press) Loop parameter Loop parameter Loop parameter BGA X(BGA) BGA X(Worked) BGA X(Standard) Smoothness=40 Smoothness=45 Smoothness=100 Span Length=100 Span Length=0 Span Length=0 Shape Factor=20 Shape Factor=25 Shape Factor=0 BGA弧度：span length＞smoothness,和shape factor＜＞0 Worked弧度：smoothness＞span length, smoothness＜＞100, 和shape factor＜＞0. S