characteristics which allow the polymer to fill the mold form to flow under pressure preferably these physical characteristics are present at room temperature and the selected polymer can thereafter be cured to retain its molded shape curing can be accomplished by elevated mold temperature exposure to ultraviolet radiation cooling of molten polymer or other commonly known process expedients referring now to fig5 a mold form 42 is shown next to lower manifold 12 manifold 12 is shown as in fig3 with support pad 30 and pad openings 32 34 positioned thereon in the embodiment herein described mold form 42 has microneedle array patterns 44 formed therein preferably over those portions of mold form 42 that register with openings 32 24 in other embodiments array 44 is molded as a repeating pattern covering the entire surface of mold form 42 manufacture of the precision patterns required to successfully mold microneedles is represented in the prior art by u s pat nos 4 601 861 4 478 769 and 4 486 363 all of which teach techniques for forming precision patterns in polymeric sheets referring to fig5 a there is shown a magnified side view of mold form 42 showing microneedle cavities 44 with openings at the top 45 and bottom 46 referring now to fig6 mold form 42 is shown positioned on gasket or pad 30 with arrays 44 aligned with apertures 32 34 as described above apertures 32 24 are aligned with ports 22 24 respectively practice of the present invention may now be described by referring to fig7 8 and 9 after polymer 38 is placed on membrane 36 and mold form 42 is positioned over membrane 36 mold 10 is reassembled as shown in fig7 with.