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12 SUPPLY CHAIN OPPORTUNITY GUIDE FIVE FAB ZONES Diving deeper, a frame- work including five fab zones and exterior utilities can be used to describe the categories of suppliers needed to operate a fab. Firms should consider opportunities beyond direct supply to the fabs, including the procurement needs of the Tier 1 supplier categories noted below, as well as those of the Tier 2 firms who supply Tier 1s. Production level of the fab: lithography, deposition, etch, CMP, metrology and tool-side operations. Includes: Tool OEMs, tool components, optics, metrology, consumables, PCBs, solder mask. Opportunities: Cleanroom janitorial, garment laundering, FFU/HEPA filter replacement, particle counting, consumable restocking, tool-set maintenance. SUPPLIER CATEGORIES • Tool and equipment manufacturers • Tool and equipment component and service providers • Optics manufacturers • Inspection and metrology tool providers • PCB suppliers • Solder mask suppliers • Consumable manufacturers • Janitorial • Garment laundering COMMON SUPPLIER REQUIREMENTS Mandatory: Responsible Business Alliance (RBA) Code, Supplier Code, Supplier Audits Recommended: ISO 9001 Conditional: ANSI/ESD S20.20, Business Continuity Plan (BCP) Chemical storage, gas cabinets, blending, filtration, distribution. Includes: Chemical suppliers, distributors, feedstock, filtration, tanks, plastics. Opportunities: Chemical delivery logistics, spill response, Original Component Manufacturer (OCM) services, abatement system mainte- nance, UPW distribution. SUPPLIER CATEGORIES • Chemical and gas suppliers • Chemical distributors • Feedstock providers • Filtration suppliers • Filtration media suppliers • Plastics manufacturers • Holding tank manufacturers • Spill response COMMON SUPPLIER REQUIREMENTS Mandatory: RBA + Supplier Code, Conflict Minerals/RoHS/REACH Recommended: ISO 9001, ISO 14001 Conditional: ISO 14064 (GHG), ISO 45001 CLEANROOM ZONE 1 CHEMICAL AND GAS SYSTEMS ZONE 2