acidburn88888888
Newbie level 3
what is the Flux? and what's diff from one to the others? so many out there dunno what to use and when to use....
how to make the lead look like dull after they came out the solder pot? ( 5 % sliver and 95 % tin ) that will work?
what's right temp for desoldering the BGA? i heard BGA will cooked if more than 220C, is that true? how about I heat up from the back side the circuit board with hight temp around 420C is that going to kill the BGA? how about other's ? I use hot air gun, and I heat up around 382C air blow around 6 ( volume ), on all the type smt,soic,plcc,qfp, except the BGA. ( something like Hakko 850 SMD Reworkstation )
one more question, if i blow the air too long on the lead of IC, on the backside sometime had some wet or water look, and it dose not look like the part is melting, where is that came from? and how I clean that up?
TKS!
how to make the lead look like dull after they came out the solder pot? ( 5 % sliver and 95 % tin ) that will work?
what's right temp for desoldering the BGA? i heard BGA will cooked if more than 220C, is that true? how about I heat up from the back side the circuit board with hight temp around 420C is that going to kill the BGA? how about other's ? I use hot air gun, and I heat up around 382C air blow around 6 ( volume ), on all the type smt,soic,plcc,qfp, except the BGA. ( something like Hakko 850 SMD Reworkstation )
one more question, if i blow the air too long on the lead of IC, on the backside sometime had some wet or water look, and it dose not look like the part is melting, where is that came from? and how I clean that up?
TKS!