发明授权
US06339559B1 Decode scheme for programming antifuses arranged in banks 失效
用于在银行中排列的编程反熔丝的解码方案

Decode scheme for programming antifuses arranged in banks
摘要:
Described is an antifuse array comprising a plurality of antifuse elements and a plurality of cell plates. Each of the antifuse elements comprises a programming transistor and one of the cell plates. The programming transistor and the cell plate of each antifuse element are both activated to program the antifuse element. Each of the cell plates is coupled to a portion of the plurality of antifuse elements and to one of a plurality of decode circuits, and the decode circuits selectively activate its coupled cell plate. With a preferred embodiment, a multitude of interconnect lines are connected to the antifuses and in particular, each interconnect line intersects each of the cell plates and is associated with one antifuse in each group of antifuses. With this preferred embodiment, the array of antifuses are decoded by predecoding one of the cell plates by elevating the cell plate voltage from ground to a program voltage, and decoding one of the interconnect lines to program one of the antifuses. The intersection of the cell plate set to a program voltage and the decoded interconnect line results in programming a unique antifuse.
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