Chinese semiconductor thread II
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Fast Routing Algorithm for Mask Stitching Region of Ultra Large Wafer Scale Integration
Abstract
Interposer-based packaging has gained tremendous popularity in integrating advanced logic and memory chiplets for artificial intelligence and high-performance computing systems. The size of the silicon interposer is the critical bottleneck in improving the performance of integrated systems by mounting more and more advanced chiplets, such as high bandwidth memory (HBM). Nowadays, ultra large wafer scale integration is a popular alternative to integrate large amounts of advanced chiplets on a big wafer scale silicon interposer. However, wafer scale silicon interposers cannot be manufactured by one mask due to the reticle limitation. Therefore, the mask stitching technique is used to manufacture ultra large systems by applying multiple masks for different sub-regions of an ultra large silicon interposer. To achieve the alignment of two adjacent sub-regions manufactured by different masks, the two sub-regions have an overlapped stitching region. Previous algorithms cannot handle the special design rules of mask stitching regions and are not efficient enough to generate high-quality routing solutions. In this work, we propose a fast routing algorithm for mask stitching regions to efficiently solve the special design rules. The time complexity of the proposed algorithm is O(n log n), where n is the number of nets. Compared with state-of-the-art work, our algorithm can achieve 100% routability with an effective reduction of wirelength. Furthermore, the proposed algorithm can achieve a speedup of thousands of times.
Correction. Naura’s ALE tool entered production line in 2019. They just stopped publishing all their advances after 2020
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EP29 (下)說清楚 講明白 中國 EUV 突破傳言中的真與假【CC字幕】
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Zhengfan Technology settled in Hefei Xinzhan High-tech Zone and signed ALD advanced coating materials and ultra-high purity bulk gas projects
On April 3, Shanghai Zhengfan Technology Co., Ltd. (hereinafter referred to as Zhengfan Technology) held a signing ceremony for the "ALD Advanced Coating Materials and Ultra-High Purity Bulk Gas Project" with Hefei Xinzhan High-tech Zone, Anhui Province.
Zhengfan Technology said that the "ALD advanced coating materials and ultra-high purity bulk gas project" implements the company's development strategy of expanding OPEX (non-equipment) business based on CAPEX (equipment) business. The company has the research and development strength of ALD advanced coating materials. Based on semiconductor precursor materials, it develops the application field of ALD, broadens the application range of film-forming materials, serves the integrated circuit and pan-semiconductor industries, and covers the use needs of advanced ALD coating materials in high-end manufacturing industries in East China. Hefei Xinzhan High-tech Zone, where Zhengfan Technology's ultra-high purity bulk gas project is located, is a pan-semiconductor industry cluster. After the project is put into production, it will provide ultra-high purity bulk gas services to strategic customers such as integrated circuits, pan-semiconductor industries, high-end laboratories and high-end manufacturing industries in Xinzhan High-tech Zone. After the project is completed and put into production, the annual output value will exceed 600 million.
Meicheng Technology has completed a new round of financing of over 100 million yuan and is a key "little giant" enterprise in ceramic parts
According to the news from Hunan Xiangjiang New District, recently, Hunan Meicheng New Materials Technology Co., Ltd. (hereinafter referred to as "Meicheng Technology") announced the completion of financing of over 100 million yuan, jointly invested by Xiangjiang State Investment, Xingxiang Capital and Gaoxin Venture Capital. The funds will be mainly used for the expansion of electronic ceramic base industrialization projects, R&D investment and market expansion. The company plans to expand the production base of Xinhua Electronic Ceramics Industrial Park through this round of financing, improve production capacity and automation level; strengthen the research and development of core technologies such as electronic ceramics for new energy vehicles, and promote the extension of products to high value-added fields; accelerate international layout and expand overseas markets.
Founded in 2010, Meicheng Technology is a high-tech enterprise engaged in the research and development, production and sales of advanced ceramic components , and a national key "little giant" enterprise. Its products are mainly high-performance alumina ceramic components, widely covering new energy (automobiles, charging piles, energy storage), home appliances, industrial automation, medical, military industry, rail transit and other downstream application fields. It is one of the pioneers of advanced ceramic components in domestic new energy vehicles, home appliances and other application fields.
According to the Hunan Xiangjiang New District, the core team of Meicheng Technology includes experts in materials science, process engineering and other fields. After more than ten years of development, Meicheng Technology has developed into a leading backbone enterprise in the advanced ceramic industry chain in Hunan Province and one of the leading domestic enterprises in advanced ceramic material parts. The company has 6 provincial scientific research platforms, including "Hunan Electronic Functional Ceramics Engineering Technology Research Center", "Hunan Enterprise Technology Center", "Hunan Engineering Research Center for Lead-free Piezoelectric Ceramics R&D and Application", "Industrial Design Center", "Hunan New Materials Pilot Platform (Advanced Ceramic Materials)", and "Hunan Manufacturing Innovation Center (Construction Field Name: Advanced Manufacturing Process and Equipment for Electronic Functional Ceramics)". It has completed a number of national, provincial and municipal scientific and technological research and industrialization projects such as "Human-friendly Lead-free Piezoelectric Ceramics and Functional Devices for Respirators". With its technical accumulation in the field of electronic ceramics, Meicheng Technology has established stable cooperation with many leading companies in the industry.