Toward Eco-Friendly CMP Process: Emerging Trends and Strategies for Reducing Environmental Footprint

IF 8.8 2区 环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL
Ravitej Venkataswamy, Murali Ramu and Jihoon Seo*, 
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Abstract

As the industry shifts toward AI and smart mobility technologies, the escalating demand for advanced semiconductors has led to significant environmental concerns. With a typical semiconductor fabrication plant (fab) consuming over 10,000 m3 of ultrapure water (UPW) daily, the environmental footprint is substantial. Chemical mechanical planarization (CMP) is the primary driver of this impact, accounting for approximately 30–40% of the total wastewater volume and consuming one-third of the UPW used by the fab. This process relies heavily on consumables such as slurries, pads, conditioners, and cleaning solutions, resulting in substantial wastewater generation, energy, and resource consumption. CMP is extremely demanding of resources, consuming large amounts of ultrapure water, and it also generates substantial wastewater and greenhouse gas emissions. In this review, we explore both established strategies and emerging trends for mitigating the environmental impacts of CMP through sustainable practices. It discusses the development of biodegradable slurries, recyclable abrasives, specialized pads, and advanced water treatment technologies. Emphasizing the role of green chemistry principles, life cycle assessment frameworks, and process optimization, this study highlights efforts to minimize the environmental footprint of semiconductor manufacturing. Despite recent progress, gaps remain, particularly in the development of sustainable CMP pads, biodegradability of slurry components, and effective wastewater management. This review suggests future research directions aimed at developing comprehensive strategies to reduce wastewater production, improve resource recovery, and enhance the overall sustainability of CMP processes. These efforts contribute to aligning technological advances in the semiconductor industry with global environmental objectives.

走向生态友好型CMP过程:减少环境足迹的新趋势和策略
随着行业转向人工智能和智能移动技术,对先进半导体的需求不断上升,引发了严重的环境问题。典型的半导体制造工厂(fab)每天消耗超过10,000立方米的超纯水(UPW),对环境的影响是巨大的。化学机械平面化(CMP)是这种影响的主要驱动因素,约占废水总量的30-40%,消耗了晶圆厂使用的UPW的三分之一。这个过程严重依赖于消耗品,如浆料、护垫、调理剂和清洁溶液,导致大量的废水产生、能源和资源消耗。CMP对资源的要求极高,消耗大量的超纯水,同时也产生大量的废水和温室气体排放。在这篇综述中,我们探讨了通过可持续实践减轻CMP对环境影响的既定战略和新兴趋势。它讨论了可生物降解浆料、可回收磨料、专用垫和先进的水处理技术的发展。本研究强调绿色化学原理、生命周期评估框架和流程优化的作用,强调努力将半导体制造的环境足迹降至最低。尽管最近取得了进展,但差距仍然存在,特别是在可持续CMP垫的开发、浆液成分的生物降解性和有效的废水管理方面。本文提出了未来的研究方向,旨在制定综合策略,以减少废水的产生,提高资源回收率,提高CMP过程的整体可持续性。这些努力有助于使半导体行业的技术进步与全球环境目标保持一致。
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来源期刊
Environmental Science & Technology Letters Environ.
Environmental Science & Technology Letters Environ. ENGINEERING, ENVIRONMENTALENVIRONMENTAL SC-ENVIRONMENTAL SCIENCES
CiteScore
17.90
自引率
3.70%
发文量
163
期刊介绍: Environmental Science & Technology Letters serves as an international forum for brief communications on experimental or theoretical results of exceptional timeliness in all aspects of environmental science, both pure and applied. Published as soon as accepted, these communications are summarized in monthly issues. Additionally, the journal features short reviews on emerging topics in environmental science and technology.
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