GENERAL Reballing - accessories

[axelll]

I was wondering, if someone could post the following infos on this thread:

1. Direct heat stencils hole diameter for:

CPU
GPU
MEM
HANA

I know there are special stencils for CPU and GPU, what about HANA and MEMs?

2. Solder balls - which type is the best?

3. What kind of flux is preffered?

Any other info regarding this topic would be appreciated.

Thanx

 

[BGAMods]

1. 0.6mm for cpu/gpu/hana
0.45mm for ram

Not sure what you mean by what solder balls are best? I only use amtech 4300 or insat flux.




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[axelll]

Thanx.

And for HANA and MEM, are there any special stencils?

 

[BGAMods]

Theres a stencil for all of the chips.


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[Martin C]

We have a whole reflow/reball thread on the forums that you might want to read..

 

[axelll]

One more question, see the attached pic, what's the minimum resistance between those 2 points on a GPU in order to be used again? I get 0.5 OHM on one of mine.

 

[KhaineGB]

Anything less than 1Ohm usually means it's dead.

 

[axelll]

Thanx, gotta go shopping

 

[-DoC-]

Solder balls for are 0.6mm.

Any will do but personally I prefer Amtech but they are much more $$

Flux is a matter of opinion. Some prefer Kingbo but most of it is fake. I prefer Amtech NC559. Amtech is made in America.

Also you will need a jig. The newer silver 90x90 I prefer over the older blue 80x80 ones with the handle.

I sent you a pm as well.