Beyond Silicon: The Thin Materials That Will Power the Next 50 Years of Tech
Oliver Weir, director of semiconductor technology at Reina Technologies, discusses his journey from application scientist to product manager, focusing on wet process solutions for compound semiconductors and 2D materials. He emphasizes that manufacturability often trumps physics advancement, and highlights the enormous challenge of scaling 2D materials for commercial production.
Summary
This podcast features Oliver Weir, an 11-year semiconductor industry veteran currently serving as director of semiconductor technology at Reina Technologies GmbH. Weir's career spans multiple roles from application scientist to product manager at companies like Brooker and Extron, specializing in compound semiconductors, 2D materials, and wet process solutions. His academic foundation comes from a master's degree in physics from the University of York, where he learned rigorous industrial practices under professors who emphasized sound experimental design and theory-backed modeling.
Weir explains that his role at Reina involves developing business by working with the community, customers, and academics to create product roadmaps based on technical challenges. He emphasizes that wet processes comprise 20-30% of front-end manufacturing steps, making them ubiquitous in fab operations. Reina differentiates itself by focusing on 200mm applications where materials innovation happens, particularly for compound semiconductors like silicon carbide and gallium nitride.
A significant portion of the discussion centers on 2D materials and their integration challenges. Weir identifies clean compatibility as the primary gating issue, explaining that 2D materials have fragile band-aid interfaces with low mechanical strength that are easily damaged by water-based cleaning solutions. He highlights work by colleague Salazi showing that energy loss in interconnects could equal humanity's 2018 energy usage by 2040, making 2D materials crucial for efficiency improvements.
Weir discusses the competitive landscape, noting that wet process companies are abundant globally, making differentiation through technology partnerships and niche market focus essential. He advocates for manufacturability over physics advancement in most cases, arguing that delivering science at the right price point is typically more valuable than elegant but unscalable solutions. His advice to young engineers emphasizes hands-on experience with equipment and understanding machines at their core level.
Key Insights
- Oliver Weir argues that manufacturability should generally take priority over pushing physics because it sets a high bar for delivering scientific advances at the right price point, while physics-first approaches often propose elegant solutions that don't scale
- Weir identifies clean compatibility as the fundamental gating issue for 2D materials, explaining that these materials have fragile band-aid interfaces with low mechanical strength that are damaged by water-based cleaning solutions, yet most current cleans are water-based
- According to Weir's colleague Salazi, it's forecast that by 2040 the energy lost in interconnects will equal the total energy usage of humanity in 2018, highlighting the critical need for 2D materials in improving interconnect efficiency
- Weir explains that Reina achieved a breakthrough by developing the first wet process solution for strain relief etching of silicon carbide, replacing multiple cleaning steps with a single-step batch immersion process from CMP to epi
- Weir's first industry boss told him to sit down and watch an X-ray align itself 10,000 times to understand machine functionality at its core, advice he considers crucial for developing technical literacy that most university graduates lack
Topics
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