Method and apparatus for fabricating high aspect ratio structures

An apparatus for fabrication of high aspect ratio structures, the apparatus comprising:

• a top cell plate;
• and
• a bottom cell plate, wherein a plurality of high aspect ratio structures are obtained between the top cell plate and the bottom cell plate by:
• depositing a predefined quantity of a viscoelastic fluid on a top surface of the bottom cell plate, wherein the viscoelastic fluid is a blend of a solvent and a polymer,
• compressing the viscoelastic fluid deposited on the top surface of the bottom cell plate using a bottom surface of the top cell plate, wherein at least one of the top cell plate and the bottom cell plate comprises a plurality of sealed source holes and a plurality of unsealed source holes for penetration of a low-viscous fluid, wherein the plurality of sealed source holes and the plurality of unsealed source holes comprise a plurality of land machined around the plurality of sealed source holes and the plurality of unsealed source holes to control a cross section of vertical walls of the high aspect ratio structures,
• separating the top cell plate and the bottom cell plate to allow the penetration of the low-viscous fluid, and
• obtaining the plurality of high aspect ratio structures between the top cell plate and the bottom cell plate due to the penetration of the low-viscous fluid.