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US 5,671,397 AGranted
Sea-of-cells array of transistors
AssigneesAT&T Global Information Solutions Company, Hyundai Electronics America, Symbios Logic Inc.
InventorHarold S. Crafts
Life of this patent
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Abstract
The invention concerns integrated circuits in which a MACRO is embedded in a standard cell array. One level of metal is devoted exclusively to non-local interconnect, and a layer of polysilicon is devoted to local interconnect, thereby saving significant space.
Claims1
In a method of constructing a logic inverter which comprises an n-channel and a p-channel field-effect transistor, the improvement comprising:
- etching a gate and a conductor connecting drains of the two transistors from a same layer of polysilicon.
Dependencies are inferred from the claim text.