Heat sinking ICs

[Joe]

I plan on using a couple of L293E ICs for motor drivers. Everything I've read suggests heat sinking, and I can understand why, with all that current going though a little IC circuit. But how do you heat sink a DIP IC?

I have many guesses. On top? Sounds wrong. Plus the L293 documentation notes that there are 4 ground pins in the center (pins 5, 6, 15, and 16 in a 20 pin package) for heat sinking purposes. Where exactly do you put the heat sink and how is it attached?

[Admin]

i looked up the datasheet for the L293E here:
http://www.datasheetcatalog.com/datasheets_pdf/L/2/9/3/L293E.shtml

on the first page it says 'use the four center pins to conduct heat to the printed circuit board'

this type of IC isnt designed for heatsinks, and instead uses the pins to get rid of heat