前加工工艺制作规范

3.3.1.3.2.3.3.4.:4.1:4.1.1,(:ECNBOM),,PCB..4.1.2.,.4.1.3.,PCB.4.1.4,4.2EXCEL2000.4.3IPC-A-610PCBWPCBL(mm),.(1).=(L)+PCB(T)(2).=(L)+PCB(T)+PCB(H)(3).=(L)+PCB(T)+(b)+PCB(H)(L)...IPC-A-610D:()(mm)IPC-A-610D(mm)1.0L2.5L2.5L2.54.4,,.IPC-A-610D.4.4.1():a(L)DTR,(D)(T)0.8mm,(R)R=1D(D)(T)0.8DT1.2mm,(R)R=1.5D(D)(T)1.2mm,(R)R=2D,,,..IPC-A-610D4.4.21WPCBPCBWPCB(T).4.4.31W1WPCB1~6mm(h),PCB(W),PCB(T).RR4.4.4PCB2.5~3.5mm(H).PCB(W),PCBT.4.4.51~2mmPCB(W),PCB(T).4.4.61W1APCB1~2mmPCB(W),PCBT.Raa~4.4.71W1A1W1APCB1~4mmPCB(W),PCBT.4.4.8LED,LEDPCB4.4.9,PCBPCB4.4.10PCB2~3mmPCB4.4.11.4.4.12PCB4.4.13+,.Ra=2~3mma=4~5mmaR4.4.144.4.15PCB:PCB1WPCB1WPCB1~6mmPCB2.5~3.5mm.,1~2mm....PCB1W()PCB1~2mm1A()PCB1~2mm1WPCB1~4mm1APCB1~4mm1W()PCB1~4mm1A()PCB1~4mmFLED25mmPCB11~12mmLED5mmPCB9~10mmGPCB19~20mmLEDPCB2~4mmPCB3~4mm.ICDIPICPCB()PCB+.,.SOICIC..PCB~