|
这种东西就像1+1=2一样,做PCB的扫一眼看就知是正片还是负片,0 ~* j% R% i% I+ f
你用cam350看不出正负片,就以为cam350不知道是否正负片,这种逻辑太可笑了!
. U- r3 Q; F, o/ Egerber文件本身就记录了各层正、负片的信息4 J/ E3 [7 T8 t. A9 B
图样图森破6 b8 _6 m7 O! F7 k' b
年青人,好好用心学,不要一点简单的问题就叫渣渣8 ?! l4 `$ k" r' w: u6 S$ Y
G04 ================== begin FILE IDENTIFICATION RECORD ==================*
" r5 z) G- W5 iG04 Layout Name:
5 {( _7 n) }, r6 OG04 Film Name: L2_GND1*" n' D. _+ m) ^5 S. k4 f
G04 File Format: Gerber RS274X*
9 ?9 B: K; N! t6 V4 \; eG04 File Origin: Cadence Allegro 16.3-p003** K+ S6 C. M8 W7 k% n
G04 Origin Date: ( P3 o. H) B8 X. m0 d- h1 q# l
G04 *( x% B+ F2 D9 x" b: |# l/ X
G04 Layer: VIA CLASS/L2_GND1*
3 M- N6 Q* e3 G) |+ EG04 Layer: PIN/L2_GND1*
! d# B9 z! ?1 ~4 A1 S% _G04 Layer: ETCH/L2_GND1*' M9 J, }8 s T) k8 @9 Z
G04 Layer: BOARD GEOMETRY/OUTLINE*/ v' ?4 n9 |2 F8 x
G04 *
& d3 b6 o- T' ]! }" B3 r! wG04 Offset: (0.0000 0.0000)*
' \! R. Q' @0 R% B8 M+ Z; Y6 K9 G! oG04 Mirror: No*9 o1 J8 f: K: R5 Y% I/ @
G04 Mode: Negative*3 \0 `( L9 M! R+ A, ?; }
G04 Rotation: 0*9 u% E- \, n2 N ^ t9 i
G04 FullContactRelief: No*, ~" S d& k; w. \% }) X4 @
G04 UndefLineWidth: 0.1250*+ n" J1 ` M- \& Z0 u- H9 S
G04 ================== end FILE IDENTIFICATION RECORD ====================*
7 r u2 T- _# S, q
c0 S$ w& T L/ M- a |
|