--- title: Shaking Up Tradition with a Truly Fun Word (FOUP) description: Beyond being one of the fun words in the semiconductor industry, the “FOUP,” front-opening-unified-pod, represented a radical change. image: https://blog.entegris.com/hubfs/fun-word-foup-blog-hero-11300-1918x545.jpg --- [![logo-header-desktop](https://blog.entegris.com/hubfs/logo-header-desktop.svg "logo-header-desktop")](https://blog.entegris.com) - [Science & Innovation](https://blog.entegris.com/tag/science-technology#featured) - [Chemical Suppliers](https://blog.entegris.com/tag/chemical-suppliers#featured) - [Logic Manufacturers](https://blog.entegris.com/tag/logic-manufacturers#featured) - [Memory Manufacturers](https://blog.entegris.com/tag/memory-manufacturers#featured) - [Semiconductor Manufacturers](https://blog.entegris.com/tag/semiconductor-manufacturers#featured) - [News](https://www.entegris.com/en/home/about-us/news/media-coverage.html) - [Talent](https://www.entegris.com/careers) - [Resources](https://www.entegris.com/en/home/resources.html) - [Reference Materials](https://www.entegris.com/en/home/resources/reference-materials.html) - [Technical Information](https://www.entegris.com/en/home/resources/technical-information.html) - [About Us](https://www.entegris.com/en/home/about-us/corporate-overview.html) - [Entegris.com](https://www.entegris.com/) - [Careers](https://www.entegris.com/en/home/about-us/careers.html) - [Corporate Overview](https://www.entegris.com/en/home/about-us/corporate-overview.html) - [Events](https://www.entegris.com/en/home/about-us/events.html) - [Investor Relations](https://www.entegris.com/en/home/about-us/investor-relations.html) - [Legal/Trademark Notices](https://www.entegris.com/en/home/about-us/legal-trademark-notices.html) - [Locations](https://www.entegris.com/en/home/about-us/locations.html) - [Services Overview](https://www.entegris.com/en/home/our-science/by-service.html) ![hero-654791312-sized](https://blog.entegris.com/hs-fs/hubfs/hero-654791312-sized.jpg?width=3400&name=hero-654791312-sized.jpg "hero-654791312-sized") # Ensights Science that is transforming lives and enabling the future ## Shaking Up Tradition with a Truly Fun Word (FOUP) - [Semiconductor Manufacturers (70)](https://blog.entegris.com/tag/semiconductor-manufacturers) - [Science & Innovation (58)](https://blog.entegris.com/tag/science-innovation) - [Logic Manufacturers (41)](https://blog.entegris.com/tag/logic-manufacturers) - [Memory Manufacturers (39)](https://blog.entegris.com/tag/memory-manufacturers) - [Chemical Suppliers (23)](https://blog.entegris.com/tag/chemical-suppliers) - [Materials Solutions (16)](https://blog.entegris.com/tag/materials-solutions) - [Talent (14)](https://blog.entegris.com/tag/talent) - [Advanced Packaging (5)](https://blog.entegris.com/tag/advanced-packaging) - [Corporate (2)](https://blog.entegris.com/tag/corporate) [All](https://blog.entegris.com/) [mailto:solutions@entegris.com](mailto:solutions@entegris.com) [![](https://blog.entegris.com/hubfs/Blog/Arrow%20Left.png)All Posts](https://blog.entegris.com) # Shaking Up Tradition with a Truly Fun Word (FOUP) - [Tweet](https://twitter.com/share) Beyond being one of the fun words in the semiconductor industry, the “FOUP,” front-opening-unified-pod, represented a radical change that has influenced the productivity of each fab and contributed to the capabilities our electronic devices today. At the inception of Moore’s Law in 1965, 30 mm (1.25”) diameter wafers were the standard. Leading up to the late 1990’s, seven generations of incremental increases would be introduced. At each point, manufacturing efficiencies and device performance opportunities existed to get “Moore” out of each wafer. Wafer storage and transport was primarily accomplished in open-air cassettes and pods, leaving wafers more susceptible to physical damage and contamination. During the early days of the transition from 200 to 300 mm wafers, all aspects of wafer protection had escalated to critical concerns as chip complexity rose and fabs continued to seek process improvements. A small start-up proposed a new wafer handling approach and climbed the mountain of tasks with partners to introduce what is today the standard wafer transport solution around the world for 300 mm fabs (~120 and growing), the FOUP. The story is best told by Gary Gallagher, senior director and “Father of the FOUP.” Much like other innovation stories, there were early adopters that proved instrumental in shaking up the traditional view from the top. There are also some twists along the way that make for another great story of how semiconductors continue to influence our lives because of the pioneers and partnerships that come with asking, “what if we \_\_\_\_\_\_?”.![gary](https://blog.entegris.com/hs-fs/hubfs/gary.jpg?width=650&name=gary.jpg) *Figure 1. “Father of the FOUP,” Gary Gallagher (center), as part of the original pioneers responsible for revolutionizing wafer handling technology.* ![clint](https://blog.entegris.com/hs-fs/hubfs/clint.jpg?width=350&name=clint.jpg) *Figure 2. Clint Haris, current Entegris SVP & GM Microcontamination Control Division, as "the young Motorola engineer" assigned to implement the first high-volume manufactured FOUPs.*   Learn more about how Entegris provides full container solutions to monitor, protect, transport, and deliver wafers from the [front-end through to the back-end](https://www.entegris.com/en/home/resources/industry-insights/front-end-to-back-end-solutions.html) of the fab.   ![Entegris](https://blog.entegris.com/hubfs/Logo_transparent.png) ###### Entegris - Recent - Popular - Categories [Revisiting EUV Reticle Pod Particle Generation](https://blog.entegris.com/revisiting-euv-reticle-pod-particle-generation) Sep, 2026 [What Changes When High-Viscosity Materials Become Interface-Defining?](https://blog.entegris.com/what-changes-when-high-viscosity-materials-become-interface-defining) Sep, 2026 [From Lab to Fab: Capturing the Uncatchable in CMP Filtration](https://blog.entegris.com/from-lab-to-fab-capturing-the-uncatchable-in-cmp-filtration) Aug, 2026 [What a Decade of Photochemical Purification Taught Us as EUV Scaled](https://blog.entegris.com/what-a-decade-of-photochemical-purification-taught-us-as-euv-scaled) Aug, 2026 [When Interfaces Carry the Outcome in Advanced Packaging](https://blog.entegris.com/when-interfaces-carry-the-outcome-in-advanced-packaging) Aug, 2026 [Molybdenum’s Role in Ultra-Fast Computing: The Metal Behind the Speed](https://blog.entegris.com/molybdenums-role-in-ultra-fast-computing-the-metal-behind-the-speed) May, 2026 [Effect of POU Filter Pore Size on EUV Bridge Defect Density](https://blog.entegris.com/effect-of-pou-filter-pore-size-on-euv-bridge-defect-density) Apr, 2026 [Hydrogen Halides in Semiconductor Manufacturing: Three Gases, Three Distinct Challenges and Solutions](https://blog.entegris.com/hydrogen-halides-in-semiconductor-manufacturing-three-gases-three-distinct-challenges-and-solutions) Mar, 2026 [Discover EDM-C3® Premium Copper- Impregnated Graphite](https://blog.entegris.com/discover-edm-c3-premium-copper-impregnated-graphite) Feb, 2026 [End-to-End Manufacturing Excellence: Seven Questions Every New (or Growing) Fab Team Should Be Asking](https://blog.entegris.com/end-to-end-manufacturing-excellence-seven-questions-every-new-or-growing-fab-team-should-be-asking) Feb, 2026 [Molybdenum’s Role in Ultra-Fast Computing: The Metal Behind the Speed](https://blog.entegris.com/molybdenums-role-in-ultra-fast-computing-the-metal-behind-the-speed) May, 2026 [Hydrogen Halides in Semiconductor Manufacturing: Three Gases, Three Distinct Challenges and Solutions](https://blog.entegris.com/hydrogen-halides-in-semiconductor-manufacturing-three-gases-three-distinct-challenges-and-solutions) Mar, 2026 [Scaling New Heights: How Molybdenum is Revolutionizing 3D NAND Architectures](https://blog.entegris.com/scaling-new-heights-how-molybdenum-is-revolutionizing-3d-nand-architectures) Aug, 2025 [DRAM: Device Fabrication](https://blog.entegris.com/dram-device-fabrication) Jun, 2020 [Collaborating to Solve Advanced Packaging Substrate Challenges](https://blog.entegris.com/collaborating-to-solve-advanced-packaging-substrate-challenges) Dec, 2025 [End-to-End Manufacturing Excellence: Seven Questions Every New (or Growing) Fab Team Should Be Asking](https://blog.entegris.com/end-to-end-manufacturing-excellence-seven-questions-every-new-or-growing-fab-team-should-be-asking) Feb, 2026 [Under Pressure: Solving High Viscosity Material Challenges in Advanced Packaging](https://blog.entegris.com/under-pressure-solving-high-viscosity-material-challenges-in-advanced-packaging) Jan, 2026 [New Materials: Smoothing the Transition to Molybdenum](https://blog.entegris.com/new-materials-smoothing-the-transition-to-molybdenum) Sep, 2023 [Effect of POU Filter Pore Size on EUV Bridge Defect Density](https://blog.entegris.com/effect-of-pou-filter-pore-size-on-euv-bridge-defect-density) Apr, 2026 [Understanding AMC: The Invisible Threat to Semiconductor Yield and Reliability](https://blog.entegris.com/understanding-amc-the-invisible-threat-to-semiconductor-yield-and-reliability) Oct, 2025 ### Lists by Topic - 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