Sun sparc CPUs that are BGA and LGA are a recycling fluke. Soldered on the board they're worth as much as any non gold ceramic CPU. Remove a soldered one your at pinless, unfortunately much lower than the real value.
Removable sparc LGA CPUs go in green fibre with metal up to the sparc II and sparc 64 lines. LGA sparc III CPUs go as pinless. The gold layer under the metal spreader was removed lowering the value. Materially the sparc III is physically identical to an IBM or Motorola RISC 64-b CPU. Also pinless class.
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