Author Topic: Henkel GC10 Solder Paste  (Read 12016 times)

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Online wraper

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Re: Henkel GC10 Solder Paste
« Reply #25 on: September 05, 2016, 07:47:08 pm »
The Galden 230 will be around 230C,  which is 10C higher than the melt point.  I'm confused ( and now a little worried ) as to why it wont' have soldered nice as sinney like it does using conventional process's.
13oC higher
SAC305 won't be shiny, even if soldered under the nitrogen atmosphere or even soldered by naked virgins.

Quote
why it wont' have soldered nice as sinney like it does using conventional process's.
Because it won't under any process at all.
« Last Edit: September 05, 2016, 07:51:05 pm by wraper »
 

Offline Koen

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Re: Henkel GC10 Solder Paste
« Reply #26 on: September 05, 2016, 08:58:09 pm »
Yes, wraper. The result I have is closer to what they show in the PDF as "Current technology" than the shiny "GC 10" shown next to it. It may be completely fine, I do not know. I haven't run a batch in a while but if memory serves me correctly, joints were shinier after having been retouched with a soldering station.

Just did a quick check and the GC10 received in April from Farnell expires mid-October 2016. Might be related, I don't know.

Anyway, Galden and GC10 made the whole process a breeze.
« Last Edit: September 05, 2016, 09:02:41 pm by Koen »
 

Online wraper

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Re: Henkel GC10 Solder Paste
« Reply #27 on: September 05, 2016, 09:03:48 pm »
joints were shinier after having been retouched with a soldering station.
If rapidly cooled, it will be more shiny / less dull. Just remember that lead free != shiny unless you use some not very conventional solders, SAC 305 used in GC10 is somewhere in the middle. Picture on the left have oxidized surface. Dull surface of SAC305 have nothing to do with oxidation. Only idiot would use higher boiling point galden unless if using higher melting point solder alloy like SN100C.
« Last Edit: September 05, 2016, 09:08:03 pm by wraper »
 

Online wraper

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Re: Henkel GC10 Solder Paste
« Reply #28 on: September 05, 2016, 09:19:45 pm »
BTW solder on those pictures are on the very tiny micro BGA pads. They are so tiny that surface shrinking (which makes the surface dull) likely cannot even appear like on larger joints you see on your PCBs.
 

Offline Gary.M

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Re: Henkel GC10 Solder Paste
« Reply #29 on: September 05, 2016, 09:38:14 pm »
Here's some GC10 reflowed in a toaster oven controlled by the ControLeo2 reflow kit.

 
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Online wraper

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Re: Henkel GC10 Solder Paste
« Reply #30 on: September 05, 2016, 09:52:57 pm »
Here's some GC10 reflowed in a toaster oven controlled by the ControLeo2 reflow kit.
FYI, resistor and capacitor footprints are wrong. There shouldn't be even nearly such huge distance between the pads. Part just touching edges of the pads is not right.
 

Offline Gary.M

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Re: Henkel GC10 Solder Paste
« Reply #31 on: September 05, 2016, 11:25:25 pm »
Here's some GC10 reflowed in a toaster oven controlled by the ControLeo2 reflow kit.
FYI, resistor and capacitor footprints are wrong. There shouldn't be even nearly such huge distance between the pads. Part just touching edges of the pads is not right.

Hmm, I'll have a look at that. Cad is Protel 99SE, footprint is 1206.

 

Online mikeselectricstuff

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Re: Henkel GC10 Solder Paste
« Reply #32 on: September 06, 2016, 12:16:28 am »
footprint is 1206.
But parts are 0805....
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Offline Gary.M

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Re: Henkel GC10 Solder Paste
« Reply #33 on: September 06, 2016, 01:04:17 am »
footprint is 1206.
But parts are 0805....

Parts are not 0805 they are 1206 as marked on the bags from Digikey.
 

Offline Gary.M

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Re: Henkel GC10 Solder Paste
« Reply #34 on: September 06, 2016, 01:36:52 am »
Well the "standard" for reflow footprints seems to vary all over the place. Here are two references, both from Vishay. I'm looking at 1206. Anyone got a definitive reference on this?

 

Online wraper

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Re: Henkel GC10 Solder Paste
« Reply #35 on: September 07, 2016, 07:34:50 am »
Footprint size can vary. Often there are multiple recommended sizes given - small, medium and large. Which you will use depends on how tight your board is populated and reliability requirement. If you have no board size constraints, use medium - large. What's wrong with the footprints on your board is pad spacing, not their size.
« Last Edit: September 07, 2016, 07:59:34 am by wraper »
 

Offline Gary.M

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Re: Henkel GC10 Solder Paste
« Reply #36 on: September 07, 2016, 09:25:07 am »
Footprint size can vary. Often there are multiple recommended sizes given - small, medium and large. Which you will use depends on how tight your board is populated and reliability requirement. If you have no board size constraints, use medium - large. What's wrong with the footprints on your board is pad spacing, not their size.
Thanks. I checked it against the Vishay patterns and as you said the pad spacing needed to be tighter so I've edited the pcb library part to correct it.

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Offline Yellofriend

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Re: Henkel GC10 Solder Paste
« Reply #37 on: June 11, 2017, 03:20:11 am »
Newbis shouldn't really undigg old topics and if, they should get flamed! So...

I was looking at Henkel GC10 because of the room temp storage. Actually I can stare it in a fridge, no problem there, but I worry about the transport. It will have a warming experiences there. With US$100 it's also not extremely cheap.

Here is what I like to add: There are very few room temp storage solder pastes on the market. In my search I came across this lead-free, no-clean ones:

Koki S3X48-M406ECO

It's Japanese made and might be a bit hard to get. Easier to get are the very similar S3X48-M406-3 and S3X58-M406-3.

I will give S3X58-M406-3 a try in the next few days.
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