The 'FE' in the part number means that they are QFP. RC is used for the PGA. There was not a BGA version of the 68040. At least, not according to the documentation I'm looking at. Also, in one of the photos you can see the legs of the chip sticking out the side. What you're looking at are 68040 chips sandwiched in top and bottom trays.

The photo is good enough to determine that this batch of chips is mask 2E31F, which is revision 'M', 80% shrink, Fab MOS11, .65 micron (650 nanometer, heh) and out of production at the time the document I'm reading was compiled.