Process for fabricating an array of polymers on a solid support is provided having the steps of coupling a monomer with a reactive side masked by a protecting group to a growing polymer chain, optionally capping the monomer or monomer chains that have not reacted in a given cycle, deprotecting the product with a deprotecting agent, repeating the above steps on regions of the support as necessary to give polymers having a desired sequence and length and oxidizing the inter monomer linkage post-synthetically.