[SBE] IR vs HotAir BGA rework stn?

[Jeff Carter]

This may sound stupid, but aren't the BGAs the ones that sit totally
over and on top of the connections?  How do you ever inspect those
once you've done them?

Do you heat the board, or the part?

My old eyes and shaky hands miss through-hole parts.  I could do 44
pin PLCC sockets for CPLDs pretty easily, but that was the end of the
road before moving to hot air and SMD stuff.

Jeff/KD4RBG

On Thu, Oct 15, 2009 at 11:23 PM, Jack Davis <jack.davis at engineer.com> wrote:

> The positioning of BGA devices is so critical I gave up on moving air,

> sounds a bit crude but a mini propane torch is very effective.  Sometimes

> the BGA junctions get intermittent and if you are really lucky you can

> reconnect them by simply reheating the device.  If you have to re-ball them

> that is a lot tougher to get a uniform job.  The ROHAS versions are just

> plain Butt Ugly!

>

>

>

> Gotta love that lead!

>

>

>

> Jack

>

> K6YC

>

>

>

> ________________________________

>

> From: sbe-bounces at sbe.org [mailto:sbe-bounces at sbe.org] On Behalf Of Edwin

> Bukont

> Sent: Thursday, October 15, 2009 12:22 PM

> To: tech-assist at radiolists.net; sbe

> Subject: [SBE] IR vs HotAir BGA rework stn?

>

>

>

> This may be more of a question for the TV and repair folks.   I am looking

> for some guidance on the purpose of a BGA rework station.  Anyone with

> experience?

>

> Do you prefer IR or hot air?

>

> Any manufactuers that are preferred, or to run away from?

>

> Any recommended vendors?

>

> Ideally I want a unit for under $1k that includes the ability to rework, not

> just reflow the target.  Rework usually includes lift, support and place of

> the chip.

>

> Off line reply is fine.

>

> Thanks

>

> Edwin Bukont CSRE, DRB, CBNT

> V- 240.417.2475; F- 240.368.1265

>

>

>

>

>

>

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