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Non-linear polar material based low power multiplier with NOR and NAND gate based reset mechanism

專利號
US11888479B1
公開日期
2024-01-30
申請人
Kepler Computing Inc.(US CA San Francisco)
發(fā)明人
Amrita Mathuriya; Rafael Rios; Ikenna Odinaka; Rajeev Kumar Dokania; Sasikanth Manipatruni
IPC分類
H03K19/23; H03K19/0185; G06F7/487; H03K19/017; G06F7/501; H03K19/17736
技術(shù)領(lǐng)域
reset,gate,majority,pull,capacitors,adder,minority,multiplier,gates,node
地域: CA CA San Francisco

摘要

A multiplier cell is derived from a 1-bit full adder and an AND gate. The 1-bit full adder is derived from majority and/or minority gates. The majority and/or minority gates include non-linear polar material (e.g., ferroelectric or paraelectric material). A reset mechanism is provided to reset the nodes across the non-linear polar material. The multiplier cell is a hybrid of majority and/or minority gates and complementary metal oxide semiconductor (CMOS) based inverters and/or buffers. The adder uses a non-linear polar capacitor to retain charge with fewer transistors than traditional CMOS sequential circuits. The non-linear polar capacitor includes ferroelectric material, paraelectric material, or non-linear dielectric. Input signals are received by respective terminals of capacitors having non-linear polar material. The other terminals of these capacitors are coupled to a node where the majority function takes place for the inputs.

說明書

FIG. 16A illustrates a multiplier cell having a 1-bit full adder and an AND gate using majority or minority gates with paraelectric capacitors, wherein the AND gate is directly connected to the 1-bit full adder, wherein the multiplier cell includes a dual NOR gate based reset mechanism, in accordance with some embodiments.

FIG. 16B illustrates a 1-bit full adder using majority or minority gates with paraelectric capacitors, wherein the 1-bit full adder cell includes a NOR gate based reset mechanism, in accordance with some embodiments.

FIG. 17 illustrates a multiplier cell having a 1-bit full adder and an AND gate using majority or minority gates with paraelectric capacitors, wherein the AND gate is directly connected to the 1-bit full adder, wherein the multiplier cell includes a single NOR gate based reset mechanism, in accordance with some embodiments.

FIG. 18 illustrates a multiplier cell having a 1-bit full adder and an AND gate using majority or minority gates with paraelectric capacitors, wherein the AND gate is directly connected to the 1-bit full adder, wherein the 3-input majority gate is directly connected to the 5-input majority gate, wherein the multiplier cell includes a single NOR gate based reset mechanism, in accordance with some embodiments.

FIG. 19 illustrates a multiplier cell having a 1-bit full adder and an AND gate using majority or minority gates with paraelectric capacitors as showing in FIG. 18, but without output driving buffer, in accordance with some embodiments.

權(quán)利要求

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