Patent ID: 8826749

Claim:
A method for determining a compression modulus of a substrate at a plurality of locations, said method comprising steps of; (a) applying a compressive force to a first location of the substrate via a sensor having a cantilever when said cantilever is in contact with the substrate; (b) detecting a displacement of the cantilever due to said compressive force of step (a); (c) determining a compression modulus of said substrate at said first location from said displacement detected in step (b); (d) applying a compressive force to a different location of the substrate via a sensor having a cantilever when said cantilever is in contact with the substrate; (e) detecting a displacement of the cantilever due to said compressive force of step (d); (f) determining a compression modulus of said substrate at said different location from said displacement detected in step (e); (g) optionally, repeating steps (d)-(f) one or more additional times; and (h) mapping said determined compression moduli of said locations of said substrate; and wherein each pair (a) and (b) or (d) and (e) of said applying and detecting steps is carried out sequentially after completion of a previous set of applying and detecting steps.