Fold-Over Manufacturing Process
The µZ Fold-Over utilizes coventional CSP/BGA assembly lines and production processes with the addition of the fold operation.

fold-over progress

Conventional BGA/CSP Assembly Process Steps

  1. Tape to Frame
  2. Die Mount
  3. Bonding
  4. Overmold
  5. Solder Ball Attach
  6. Singulation
  7. Electrical Test
  8. Marking
  9. Final Inspection

Fold Operation
Once the individual packages have been assembled, the memory packages are surface mount attached on top by either the package or board assembler.