Backside lookup table (BS-LUT)-based programmable processor

Abstract

In order to realize computational programming, the invention provides a backside lookup table (BS-LUT)-based programmable processor, comprising a lookup table circuit (LUT) located on the backside of a processor substrate and an arithmetic logic circuit (ALC) located on the front of the processor substrate. According to a user need, the LUT stores relevant data of a needed function. The ALC performs arithmetic operation on the relevant data of the function.

Description

technical field [0001] This invention relates to the field of integrated circuits, and more specifically, to processors. Background technique [0002] Traditional processors use logic-based computation (LBC for short), which is mainly calculated through logic circuits (such as NAND gates, etc.). Logic circuits are suitable for implementing arithmetic operations (such as addition, subtraction, and multiplication), but they are powerless for non-arithmetic functions (such as elementary functions, special functions, etc.). The high-speed and efficient implementation of non-arithmetic functions faces great challenges. [0003] In traditional processors, only a small number of basic non-arithmetic functions (such as basic algebraic functions and basic transcendental functions) can be directly implemented by hardware, and these functions are called built-in functions (built-in functions). Built-in functions are generally implemented by a combination of arithmetic operations and ...

AI Technical Summary

Problems solved by technology

Simultaneous formation of high-performance memory transistors and logic transistors on the same surface of an OOS on the same substrate is a challenge for the fabrication process

[0006] Two-dimensional integration will also limit the further development of computational density and computational complexity

Unfortunately, FPGA is not yet able to achieve calculation programming, that is, the same hardware selectively implements different calculations (that is, implements different functions) under the control of setting signals.

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