[chbot] Misc link from this evening

[Yani Dubin]

Apologies for messy posting without changing subject line. I must have hit
a magic key combo, because gmail sent it prematurely.

On Mon, Jan 5, 2015 at 11:33 PM, Yani Dubin <yani.dubin at gmail.com> wrote:

> Hi Mark,
>
> On Mon, Sep 15, 2014 at 10:52 PM, Mark Atherton <markaren1 at xtra.co.nz>
>  wrote:
>>
>> Hot air pre-heater : Element 14, SKU 2064552
>> Briefly touched on re-balling BGAs. Search eBay for "BGA reball", also
>> youtube for some tutorials.
>> PS I ended getting 320 stencils from Aliexpress for US$32, from RunTop
>> Technology CO.,LIMITED who I never want to deal with again.
>
>
> I have been meaning to email you for some time in response to this
> (unfortunately I missed this meeting).
>
> This has been on my TODO list for a while, as I now have 3+ laptops which
> have video issues (2 of which I have fixed temporarily by running the hot
> air from my rework station over, but which relapsed after days or weeks).
> To add insult to injury, I *spent money* on one of the laptops, thinking
> the video was sorted, I bought a $30 replacement keyboard off ebay - and
> now the thing sits there mocking me. Something must be done.
>
>
> I was wondering what your reballing experiences were - I gather you've
> given it a go?
>
> Did you recommend a particular kit? I seem to recall when I looked into
> this a year or so back that there are various approaches to clamping the
> stencils to the chip, so would be keen to know what the one you have looks
> like, and how well it works.
>
> Hot air pre-heater : Element 14, SKU 2064552
>>
>
> Was this part of the reballing workflow, or an aside? I seem to recall
> seeing such a thing in some videos, but not others - I was wondering how
> much of a help it was.
>
> PS I ended getting 320 stencils from Aliexpress for US$32, from RunTop
>> Technology CO.,LIMITED who I never want to deal with again.
>
>
> And finally cutting to the chase, how do you feel about lending your 320
> stencils (or a subset if I did my homework and found out what the BGA
> footprints for each chip were), and do you have surplus solder balls I can
> compensate you for monetarily? (or can replace by ordering some of my own
> and topping up yours when they arrive). As I have the next two weeks off
> work, if you were willing to loan your kit (thus eliminating the lead
> time), I was thinking I should give this a go. I am lucky in that one of
> them even has a removeable video card - so that would be likely the easiest
> to work with.
>
> Regards,
> Yani.
>
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