All that's been said about CCGA's, by all saying it, is true. Not much
bigger deal than BGA's but bigger and much heavier parts. Best solder joints
possible with those "flexible" columns and solder fillets at joint level.

Machine vision offers biggest challenge, as someone said. Rework must be
considered as well. That's the most fun but very doable.

Done hundreds of these using cast, not clasp, columns from IBM. With columns
about .070" long, inspection not too tough. Whoever noted it very important
to ensure columns straight said it right. When bent, I used an engineering
scale to "comb" the little muthas straight again. Pretty forgiving those
columns when a little bent but not so when abused.

MoonMan

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