Antifuse-based FPGA architecture without high-voltage isolation transistors

Claim 1

In a field programmable gate array integrated circuit including a plurality of logic modules and an interconnection array, a programmable interface for selectively making connections between an output node of a logic module and an interconnection node in said interconnection array, comprising: a first antifuse having a first electrode and a second electrode, said first electrode electrically connected to the output node; a second antifuse having a first electrode and a second electrode, said first electrode electrically connected to said second electrode of said first antifuse and said second electrode connected to the interconnection array; and a high-voltage transistor, capable of withstanding programming used in the integrated circuit to program the antifuses, connected between the common connection comprising said second electrode of said first antifuse and said first electrode of said second antifuse and a fixed voltage potential such as ground, said high-voltage transistor having a control element connected to circuitry for programming antifuses located on said integrated circuit.