Sumitomo Osaka Cement has been granted a patent for an optical waveguide element designed to prevent substrate cracking during electrical connections. The innovation features a support substrate and a substrate removal portion that enhances connection reliability and manufacturing yield. GlobalData’s report on Sumitomo Osaka Cement 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 Sumitomo Osaka Cement, Electrode active materials was a key innovation area identified from patents. Sumitomo Osaka Cement's grant share as of June 2024 was 47%. Grant share is based on the ratio of number of grants to total number of patents.
Optical waveguide element with improved electrical connection design
The patent US12044911B2 describes an innovative optical waveguide element that integrates an optical substrate with a conductor pattern, supported by a support substrate. Key features include an electrical connection area, which is defined as a range for electrical connections, and a substrate removal portion that allows for penetration through the optical substrate at the electrical connection area. This design enables part of the electrical connection area to be formed on the support substrate, ensuring effective connectivity. The optical substrate is specified to have a thickness of 10 µm or less, and the electrical connection pad is designed to be rectangular with a width greater than the line width of the connected line portion. The substrate removal portion is strategically shaped to avoid bent boundaries, enhancing the structural integrity of the waveguide element.
Further claims detail the configuration of the conductor pattern, which may include multiple electrical connection areas formed via a single substrate removal portion. The conductor pattern can consist of both signal and ground conductor patterns, facilitating the propagation of electrical signals and grounding. The substrate removal portion is also designed to be visually recognizable, ensuring that certain areas remain free of conductor patterns. This patent presents a comprehensive approach to optical waveguide design, emphasizing the integration of optical and electrical components for improved functionality in optical waveguide devices.
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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.
