M**********o
发帖数: 203 | 1 Do you guys have some good experiences or tricks of soldering? Thank you
very much.
Do you use magnifier? or desoldering wick? What's the diameter of the solder
? I feel the thinner the better... | f*****0
发帖数: 489 | 2 1206 or 0805 parts are fairly easy to solder: you just tin the pads a little
bit, use a tweezer to push the part onto the pads and use a fine tip to
melt the tin on the pads.
sot23 parts can be done this way too.
for multi-pin chips, I coat the pcb with solder paste (mostly solder but
also some flux), put on the part, and use a hotair gun to melt the paste.
the trick is to use the right amount of paste: if you used too much, you can
always wipe them off with a fine multi-strand copper wire. it d | M**********o
发帖数: 203 | 3 Thank you very much for your reply. I was heard of using hot air soldering
but haven't tried yet. I want to build a 2812 board, the DSP has 176 pins
and LQFP package. So it should be applicable, right. Will the solder paste
make the jumper(connect 2 pins) because the distance between each pin is so
narrow?
By the way, do you have some recommendations for buying a hot air soldering
station? Thank you.
little
can
【在 f*****0 的大作中提到】
: 1206 or 0805 parts are fairly easy to solder: you just tin the pads a little
: bit, use a tweezer to push the part onto the pads and use a fine tip to
: melt the tin on the pads.
: sot23 parts can be done this way too.
: for multi-pin chips, I coat the pcb with solder paste (mostly solder but
: also some flux), put on the part, and use a hotair gun to melt the paste.
: the trick is to use the right amount of paste: if you used too much, you can
: always wipe them off with a fine multi-strand copper wire. it d
| f*****0
发帖数: 489 | 4
soldering
pins
paste
so
that's why the paste has flux. But it does take practice to get it right.
If you used too much, just use a fine bread of copper wires and press it
against the pins with a hot iron.
soldering
how about a hair dryer? or an oven?
【在 M**********o 的大作中提到】
: Thank you very much for your reply. I was heard of using hot air soldering
: but haven't tried yet. I want to build a 2812 board, the DSP has 176 pins
: and LQFP package. So it should be applicable, right. Will the solder paste
: make the jumper(connect 2 pins) because the distance between each pin is so
: narrow?
: By the way, do you have some recommendations for buying a hot air soldering
: station? Thank you.
:
: little
: can
| a*****s
发帖数: 6260 | 5 176个脚的玩意？我强烈建议你去找专业人士干这活，业余选手烧糊这种片子简直
是一定的，何况从你问的问题来看连业余都不算。
so
soldering
【在 M**********o 的大作中提到】
: Thank you very much for your reply. I was heard of using hot air soldering
: but haven't tried yet. I want to build a 2812 board, the DSP has 176 pins
: and LQFP package. So it should be applicable, right. Will the solder paste
: make the jumper(connect 2 pins) because the distance between each pin is so
: narrow?
: By the way, do you have some recommendations for buying a hot air soldering
: station? Thank you.
:
: little
: can
| f*****0
发帖数: 489 | 6 lqfp is very doable and if you use an oven, it doesn't matter if you are
working on a 176 or 48-pin device.
it is the finer pitch or pin-less devices (mssop, or bga/lga, etc.) that re
a pain.
as to failure rate, yeah, it does taking some practice. | M**********o
发帖数: 203 | 7 Thank you for your help.
re
【在 f*****0 的大作中提到】
: lqfp is very doable and if you use an oven, it doesn't matter if you are
: working on a 176 or 48-pin device.
: it is the finer pitch or pin-less devices (mssop, or bga/lga, etc.) that re
: a pain.
: as to failure rate, yeah, it does taking some practice.
|
|
