THREE DIMENSIONAL INTEGRATED CIRCUITS
First Claim
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1. A mask configurable semiconductor device, comprising:
- a programmable logic circuit having a high impedance node; and
an output of a multiplexer coupled to the high impedance node to configure the programmable logic circuit, the multiplexer including;
two or more inputs; and
one or more control signals, the control signals uniquely coupling a said input to the output of the multiplexer; and
a plurality of read only memory elements (ROMs), a said ROM element coupled to each of said inputs to multiplexer, wherein the ROM elements are positioned substantially above or below the programmable logic circuit.
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Abstract
A programmable integrated circuit (IC), comprising: a programmable logic circuit configured by a first control signal coupled to a gate electrode of a transistor in the logic circuit; and a first plurality of read only memory (ROM) elements capable of coupling to the first control signal, wherein a said first ROM elements is selected to couple by one or more decode signals, and wherein the first ROM elements store a plurality of user specifications.
222 Citations
20 Claims
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1. A mask configurable semiconductor device, comprising:
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a programmable logic circuit having a high impedance node; and an output of a multiplexer coupled to the high impedance node to configure the programmable logic circuit, the multiplexer including; two or more inputs; and one or more control signals, the control signals uniquely coupling a said input to the output of the multiplexer; and a plurality of read only memory elements (ROMs), a said ROM element coupled to each of said inputs to multiplexer, wherein the ROM elements are positioned substantially above or below the programmable logic circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A programmable semiconductor device, comprising:
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a plurality of programmable pass-gate logic elements constructed on a semiconductor substrate layer, each said pass-gate logic elements comprising a gate electrode; and a plurality of multiplexers, a said multiplexer coupled to the gate electrode of a said pass-gate logic element; and a plurality of read only memory (ROM) elements, two or more of said ROM elements coupled to the said multiplexer to selectively couple one of the ROM elements to program the pass-gate logic element to one of two or more user specifications, wherein the ROM elements are positioned substantially above or below the semiconductor substrate layer. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A programmable integrated circuit (IC), comprising:
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a programmable logic circuit configured by a first control signal coupled to a gate electrode of a transistor in the logic circuit; and a first plurality of read only memory (ROM) elements capable of coupling to the first control signal, wherein a said first ROM elements is selected to couple by one or more decode signals, and wherein the first ROM elements store a plurality of user specifications. - View Dependent Claims (18, 19, 20)
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Specification