RDL: http://cc.ee.ntu.edu.tw/%7Eywchang/Papers/tcad07-RDL.pdf
http://www.amkor.com/go/packaging/all-packages/plcc/plcc-plastic-leaded-chip-carrier--lcc-package
Digikey sells PLCC sockets
Leave 15 mil solder mask opening around PCB bond pads.
Sub-30 degree bonding angle is preferable.
Electroless Nickel Immersion Gold (ENIG) is good for bonding
Recommended Gel-Pak Part Number: AD-22C-00-X4
http://www.gelpak.com/products/index.cfm?fuseaction=description&partnum=AD-22C-00-X4