John,
I have recently gone thru that selection/procurement process and here
are my thoughts:
If you have demo'd the chosen BGA rework station on your actual product
and the machine performs adequately on todays requirements and meets the
near future requirements, buy it.
If you want to know why the upper end units are so expensive, ask their
technical sales people. They are generally familiar with their
competition and will explain the added enhancements. If you have high
value, difficult product to rework, you probably need those
enhancements.
In my application, I had 14 layer boards with thermal planes. The
removal process was not to difficult, but the mounting and resoldering
required an accurate alignment system, sturdy frame, and robust top and
bottom heaters to achieve the thermal profile I needed. The high end
machines are also more automated, minimizing possibility of operator
error. You don't have to screw many BGA's up to have test, quality, and
the customer lose confidence in your process and make your life
miserable.
Another thing to consider is that since BGA's can not be hand installed
like other components, an adequate BGA rework station can serve as a
reliable back-up system to your manufacturing line.
Jim Kittel
>-----Original Message-----
>From: [log in to unmask] [SMTP:[log in to unmask]]
>Sent: Thursday, December 10, 1998 4:19 PM
>To: [log in to unmask]
>Subject: [TN] BGA Rework and Placement Stations and $$$
>
> Address,
>
> I've looked at the following systems and have decided on a system to
> purchase. I need serious explanation.
>
> 1. Other than the bells and whistles, how can the delta between these
> systems be so great?
>
> 2. Unless I have really overlooked something important, what is the
> lower priced system missing that the upper priced systems have?
>
> 3. Based on what we have accomplished, BGA removal and placement with
> the lower priced system is adequate.
>
> 4. I've noticed is has been difficult to compare apples to apples with
> these and other BGA stations. Are there any competitors or others
> that can provide sound BENCHMARKING data to prove their stations
> superior.
>
> a. PACE TF 700 ThermoFlow $7000.00 nominal
> b. Sniper Flo-Master SMD-7007 $25.000 nominal
> c. PDR 1600 Evolution $42.000 nominal
>
>
> Granted, there are pros and cons to each station, and those stations
> have to meet the requirements of the end user.
>
> Any comments are appreciated. Thanky you.
>
> John Gulley - Manager, Process QE
>
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