smt製程介紹 - buzzer-speaker.com process.pdf · 打smt件 先打smt,第二次再焊dip件
TRANSCRIPT
-
SMT
By Michael & Gregc
-
- - - -
-
,
-
SMT
SMT,DIP
-
4,
-
ICT
-
DIP
-
DIP
-
,,40~80()7~10+1~3.,(20.9%,50~3000ppm(1%=10000ppm)),
,,.
-
Profile
-
/PCB
-
/
1. ,1/3
2.
3.
TRANSCRIPT
SMT
By Michael & Gregc
- - - -
,
SMT
SMT,DIP
4,
ICT
DIP
DIP
,,40~80()7~10+1~3.,(20.9%,50~3000ppm(1%=10000ppm)),
,,.
Profile
/PCB
/
1. ,1/3
2.
3.