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X-ray空焊判定方式


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: : 650 ¤? , ?u??¤§ ????h§O?b : ) Chip1 ¤? PCB1 ?h , ?u??¤§ ????h§O?b???· ]?A 800 Center ?h

3. ??¤ù???ú?§P?_ BGA ?k?I¤§??°

: Center ?h?V¤W (BGA ?s?ó?? )¤??V¤U (PCB ?? )?U°?¤è?|?h

Chip ?s?ó??

Chip 1 Chip2 Center PCB2 PCB3 Chip3 Chip 4 PCB4 PCB 1

PCB ??

(BGA ?s?ó?? (PCB ??

) Chip4, Chip3, Chip2, Chip1 ) PCB4, PCB3, PCB2, PCB1

X-ray y??v? ??±

Center

±??y?X

X-ray ?v??

PCB 4 ±??y?X Chip 4 X-ray ?v??

PCB 3 ±??y?X Chip 3 X-ray ?v??

PCB 2 ±??y?X Chip 2 X-ray ?v??

PCB 1 ±??y?X Chip 1 X-ray ?v??

PCB1 ¤? ?? I 3. ?e???y?¨?~§P-ì] X-ray ±??y???°¤??-??? ?(?í???k?I??¤?-±jp

Chip1 ?h¤§±??y?v??§@?°???kP?_ ), ?p???k?I?ú???L??P¨??L?I¤??P?h?i?à???k?I?°??

, ???·?p?u?ê ???¨C¤@-??k?I??? ?·?? {

, PCB ?O???m??¤§?-???×·|?v?T???h?v?????G

, ???m?????O?ù¤?

Chip1

Pcb1

Chip2

Pcb2

Chip3

Pcb3

Chip4

Pcb4

Center

Center2


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