A microneedle array is manufactured using a mold preparation procedure that begins by placing an optical mask over a layer of PMMA material, exposing the PMMA material to x-rays, then developing using a photoresist process. The remaining PMMA material is then electroplated with metal. Once the metal...http://www.google.com.au/patents/US6451240?utm_source=gb-gplus-sharePatent US6451240 - Method of manufacturing an intracutaneous microneedle array
