Micro Pin Grid Array perhaps?  
 
" The  micro-PGA2 consists of a BGA package mounted to an interposer with 
small pins.  The pins are 1.25 mm long and 0.30 mm in diameter. While there are 
several  micro-PGA2 socket designs available, all of them are designed to allow 
 zero-insertion force  removal and insertion of the mobile Pentium III  
processor"

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