We discuss pair production of stops, sbottoms, staus and tau--sneutrinos at a
μ+μ− collider. We present the formulae for the production cross
sections and perform a detailed numerical analysis within the Minimal
Supersymmetric Standard Model. In particular, we consider sfermion production
near s=mH0 and s=mA0.Comment: 21 pages, Latex, uses Revtex (included), 8 figures (included as
PS-files