Macronix International had ten patents in artificial intelligence during Q1 2024. The patents filed by Macronix International Co Ltd in Q1 2024 relate to memory devices for CIM, specifically a 3D AND-type flash memory. These memory devices include memory arrays with input word line pairs and signal processing circuits. The computing memory cells within these devices store weight values, receive input values, and generate output values based on the product of the input and weight values. GlobalData’s report on Macronix International gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Macronix International grant share with artificial intelligence as a theme is 40% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Memory device for computing in-memory (Patent ID: US20240028211A1)
The patent filed by Macronix International Co Ltd describes a memory device designed for computing in-memory, specifically for a 3D AND-type flash memory. The memory device includes a memory array with first and second pairs of memory cells, input word line pairs, and a signal processing circuit connected to global bit lines. The input word line pairs provide binary or ternary input signals, and the memory array stores weight information for computing in-memory, with different VMM weights stored in specific memory cell sets.
Furthermore, the signal processing circuit can be a differential analog-to-digital converter, and the memory device is capable of performing an in-memory search. The memory device is configured to sum memory cell currents from the memory array, with specific current ranges and sensing voltages specified. Additionally, the memory device can perform cosine similarity computing for in-memory search, with a control circuit and comparator included for this purpose. The patent also mentions the integration of this memory device into a solid-state drive module, along with a controller chip and interface, which can be DDR4 or DDR5.
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