Renault has been granted a patent for a semiconductor device with a unique structure. The device includes drift, well, and source regions with varying impurity concentrations, allowing for efficient operation. The design ensures a specific distance between regions for optimal performance and a depletion layer reaching the drift region. GlobalData’s report on Renault gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Renault, Battery management systems was a key innovation area identified from patents. Renault's grant share as of April 2024 was 65%. Grant share is based on the ratio of number of grants to total number of patents.

Semiconductor device with optimized well regions for improved performance

Source: United States Patent and Trademark Office (USPTO). Credit: Renault SA

A recently granted patent (Publication Number: US11973108B2) discloses a semiconductor device with a unique structure aimed at improving performance. The device includes a substrate with a first-conductivity-type drift region, a second-conductivity-type first well region, a second-conductivity-type second well region, a first-conductivity-type source region, and a first-conductivity-type drain region. The device also features a gate insulating film and a gate electrode strategically placed to enhance functionality. Notably, the distance between the source region and the drift region is greater than the distance between the second well region and the drift region, ensuring efficient operation.

Furthermore, the patent details a method for manufacturing the semiconductor device, involving the selective formation of different regions on the substrate, including the drift region, well regions, source region, and drain region. The process also includes the creation of a gate insulating film and a gate electrode in specific configurations to optimize performance. The design and manufacturing method outlined in the patent aim to enhance the overall efficiency and functionality of the semiconductor device, potentially leading to advancements in semiconductor technology.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.