What is the standoff (cavity height) under the PLCC? Bypass caps up to .22uF (.1 uF is virtually the standard) for DRAM PLCC and SOJ packages are available < .025" thick. These are made by the millions weekly in a couple common (0805 and 1206) sizes and dielectrics (Y5V and Z5U) by Murata-Erie, AVX/Kyocera, Samsung, Johanson Dielectrics, Novacap, and sevaral more companies. I hope this helps. Tracy Tennant