Mostly i use 90x90 stencils for chip reball, then i remove stencil and apply heat with heatgun...and preheater...and everything is fine. But this SR40 pch chips are very small with lots of balls half milimetar from each other...and i am not happy with results... I get bridges and so on....So i was thinking maybe to reball these SR40 chips with direct heat stencils...but i can not find it in 90x90 size. I tried aliexpress and ebay...but nothing.
Maybe someone knows place to buy? Thx
Maybe someone knows place to buy? Thx
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