Atomera has been granted a patent for a semiconductor device featuring an asymmetric channel between doped regions on a substrate. The device includes a superlattice to constrain dopants, with a gate overlaying the channel. The innovation aims to enhance semiconductor performance and efficiency. GlobalData’s report on Atomera 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 Atomera, Quantum dot devices was a key innovation area identified from patents. Atomera's grant share as of January 2024 was 51%. Grant share is based on the ratio of number of grants to total number of patents.
Semiconductor device with asymmetric channel and superlattice for dopant constraint
The granted patent (Publication Number: US11869968B2) discloses a semiconductor device comprising a substrate with spaced apart first and second doped regions of different conductivity types, creating an asymmetric channel. A superlattice structure, composed of stacked base semiconductor monolayers and non-semiconductor monolayers, is used to confine dopants within the device. Additionally, a well implant with a different conductivity type is placed adjacent to one of the doped regions, with a gate positioned over the asymmetric channel to control the flow of current.
Furthermore, the semiconductor device includes features such as a punch through stop implant to prevent unwanted current flow, gate dielectric and gate electrode layers for effective control, and sidewall spacers for additional support. The use of silicon monolayers and oxygen monolayers within the superlattice structure enhances the performance and functionality of the device. The patent also describes variations of the device with different configurations of doped regions, superlattice placement, and additional implants to optimize the semiconductor device's operation and efficiency.
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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.
