An initiator that includes a header body, an insulating spacer, an
initiator chip, a plurality of terminals and a plurality of contacts. The
insulating spacer is coupled to the header body. The initiator chip that
forms at least a portion of an exploding foil initiator and includes a
plurality of electric interfaces. The initiator chip is secured to a side
of the insulating spacer opposite the header body. The terminals extend
through the header body. The contacts electrically couple the electric
interfaces to the terminals. The cover is coupled to the header body and
cooperates with the header body to house the insulating spacer, the
initiator chip and the contacts. A method for forming an initiator is
also provided.