Method of fabricating high density hermetic electrical feedthroughs using insulated wire bundles

A method of fabricating hermetic electrical feedthroughs, comprising:

• coating each of a plurality of electrically conductive wires with an electrically insulating material;
• inserting the coated wires through a ring-like structure to bundle the coated wires together in a substantially parallel arrangement;
• fixedly joining the electrically insulating material of adjacent wires together and to the ring-like structure to form a gapless hermetic monolithic block;
• and
• cutting the monolithic block transverse to the wires to produce a block section having opposing first and second sides with a plurality of electrically conductive feedthroughs extending therebetween.