Adjust one oven rack to uppermost position (about 3 inches from heat source) and second rack to upper-middle position.
Mix bread crumbs, potato chips, and dill together.
Drizzle lemon juice over the salmon fillets, then coat thinly with the olive oil.
Broil salmon on the uppermost rack until surface is spotty brown, about 8 minutes.
Remove fish from oven, and spread the mustard evenly over each fillet. Coat each fillet with the bread crumb mixture, pressing it into the mustard.
Return the fillets to the oven on the upper-middle rack, and continue broiling until crust is golden brown, about 2 to 3 minutes longer. Watch closely. If some of the crumb mixture turns too dark, just brush it off. Serve immediately.