Reconfigurable engineering change order base cell
First Claim
Patent Images
1. A configured base cell module comprising:
- a plurality of base cells, each having a fixed circuit structure through a second metal (M2) layer and comprising;
an n-well and a p-well formed in a substrate,PMOS and NMOS gate electrode structures formed over the n-well and p-well and electrically separated from another up to the second metal (M2) layer,P+ implant and N+ implant regions formed adjacent to the PMOS and NMOS gate electrode structures in the n-well and p-well, respectively, andfirst and second power supply lines formed over the n-well and p-well and electrically separated from another up to the second metal (M2) layer; and
one or more conductor elements formed over a first base cell above the M2 layer to configure the first base cell to provide a predetermined circuit function.
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Abstract
An integrated circuit ECO base cell module is formed with PMOS and NMOS gate electrode structures and power supply lines that are electrically separated from one another up to the second metal (M2) layer in a fixed circuit structure that may be reconfigured with one or more conductor elements formed above the M2 layer to form a predetermined circuit function.
29 Citations
21 Claims
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1. A configured base cell module comprising:
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a plurality of base cells, each having a fixed circuit structure through a second metal (M2) layer and comprising; an n-well and a p-well formed in a substrate, PMOS and NMOS gate electrode structures formed over the n-well and p-well and electrically separated from another up to the second metal (M2) layer, P+ implant and N+ implant regions formed adjacent to the PMOS and NMOS gate electrode structures in the n-well and p-well, respectively, and first and second power supply lines formed over the n-well and p-well and electrically separated from another up to the second metal (M2) layer; and one or more conductor elements formed over a first base cell above the M2 layer to configure the first base cell to provide a predetermined circuit function. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A programmed base cell module comprising:
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at least one PMOS transistor comprising a PMOS gate electrode and p-type source and drain regions with a fixed conductor path to the PMOS gate electrode formed up to a second metal (M2) layer; at least one NMOS transistor comprising an NMOS gate electrode and n-type source and drain regions with a fixed conductor path to the NMOS gate electrode formed up to the second metal (M2) layer, where the NMOS gate electrode is electrically disconnected from the PMOS gate electrode up to the second metal (M2) layer; a first reference voltage conductor line with one or more first conductor paths formed up to the second metal (M2) layer; a second reference voltage conductor line with one or more second conductor paths formed up to the second metal (M2) layer, where the second reference voltage conductor line is electrically disconnected from the first reference voltage conductor line up to the second metal (M2) layer; and one or more conductor elements formed above the second metal (M2) layer; where the programmed base cell module has a fixed circuit structure through the second metal (M2) layer and where the one or more conductor elements formed above the second metal (M2) layer program the fixed circuit structure to form a predetermined circuit function. - View Dependent Claims (12, 13, 14)
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15. A method for making an integrated circuit device comprising:
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placing one or more functional cells and one or more base cells in a preliminary layout design, where each base cell comprises a plurality of electrically separate gate electrode structures in a fixed circuit structure through the second metal (M2) layer; routing the one or more functional cells according to the preliminary layout design; altering at least one metal layer above the second metal (M2) layer in one or more base cells to form one or more programmed functional cells, each having a predetermined circuit function; re-routing the one or more functional cells to be integrated with the one or more programmed functional cells to produce a device layout design; and making an integrated circuit device using the device layout design. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification