A low stress, protective coating for a semiconductor device and a method
for its manufacture. A preferred embodiment comprises coating the top
surface of a semiconductor die with polyimide except for corner regions
of the die. Not having corners in the polyimide protective overcoat
generally reduces shear stresses in the die. Reducing stress, in turn,
generally reduces the occurrence of problems such as fracture,
delamination, or cracking within the die. A low stress coating may be
particularly advantageous in semiconductor devices having low-k
insulating materials, which are generally of low mechanical strength.