I've got this vintage laptop (Toshiba T3100) with a Matsushita gas-plasma display MD400F640PD2. Unfortunately, there must have been some screwup at the factory and now most of them are rusting. Specifically, the plasma driver ICs get rusty pins which stop conducting, causing lines on the screen.
Given that replacing the screen or the chips does not seem to be especially feasible, is there any way to repair the ones I've already got? Fortunately, the rust is on the chips and not really on the flex board itself. I've considered dremeling the sides with the legs to remove them and expose fresh leadframe, but I'm not sure where to go from there. Pictures of some of the chips are attached.