A systematic study has been performed on the production of V-grooves i
n (100) InP substrates by wet chemical etching. The dissolution proces
s and its dependence on etchant, etch mask, and its accuracy of alignm
ent relative to the [011] or [0 (1) over bar 1] directions has been an
alyzed. Consequently, the conditions necessary to achieve V-grooves ha
ving (111)A, (111)B, and (211)A sidewalls has been established.