Soft lithography
In technology, soft lithography is a family of techniques for fabricating or replicating structures using "elastomeric stamps, molds, and conformable photomasks". It is called "soft" because it uses elastomeric materials, most notably PDMS. PDMS, an amorphous polymer, is favored for the following characteristics: Elasticity: the elasticity of PDMS is tuned by (1) adjusting curing conditions (curing agent concentration and temperature) and (2) dispersing particles throughout the polymer matrix.