下面英语是什么意思,看看前面的学习效果
' i4 H( s5 Q. v. ~
2 o# B9 \/ Y) I Fabricator shall utilize& certify laminate, prepreg &surface finish materials including solder mask&Silkscreen inks for ROHScompliance in accordance with ROHS,WEEE DIRECTIVE. Laminate and pre-preg is FR4and shall be compatible with IPC4101A/26.Flammability Rating UL 94V-1 or better.The copper wall thickness inplated-through holes, via holes and in blind and buried vias shall be 0.001” min.the min width and space is3/3mil,surfacetreatment is HASL(Pb free),Fabricatos I.D and UL mark on solder side free fromany metal entity.
4 P& L* Y$ a# S; m! t: _4 l0 J! O$ I2 q% P$ @1 z+ u; j
|