Cov kev xav tau rau drilling qhov tseeb ntawmsiab ntau zaustxiag ntoo
1. Kev ntsuas cov txheej txheem ntawm cov tshuab drilling
Txoj haujlwm raug:
Qhov chaw ua hauj lwm txawv dua dua lossis sib npaug ntawm ± {{{{}}}}}}}}}}}}}}}}}}
Lub qhov txav mus tsaug zog ± {0. 03mm (los tiv thaiv cov teeb liab crosstalk)
Aperture Ua Phiv:
NEEG KHO TSHUAB DRILLING: ± {{{0}}}. 025mm (aperture ntau dua los yog sib npaug rau 0.2 hli)
Laser Drilling: ± {{{0}}}}}}}. 15mm, siv rauHDI Board)
Cov Qauv Kev Lag Luam:
IPC {{{{{0}}}}}}}}}}}}} kev ntseeg cov khoom) yuav tsum muaj ib lub qhov ntswg qis dua 0.075mm.
2. Qhov cuam tshuam ntawm cov thev naus laus zis rau ntawm cov paib kev ncaj ncees
Mismatch ntawm kev yuam:
Drilling deviation leads to a sudden change in signal path, causing reflection (increase in return loss>1DB)
Rooj plaub:
Tej yam millimeter sploal radar board muaj ib qho kev sib tw ntawm 0}. 08mm zaus band kom nce ntawm 1.2 txog 1.8. Tom qab kho nrog txoj siav qab, nws tau ntsib tus qauv.
siab ntau zaus HD TSIBtxiag ntoo millimeter txaus radar board