Semiconductor fabs demand equipment that will not generate, trap, or shed particles and that will not corrode under aggressive cleaning protocols. Cleanroom furniture (tables, carts, shelving, workstations) and metal housings for electrical and process equipment must be engineered and fabricated to the same contamination control expectations that govern process tools and UHP gas systems.
At Striking Precision Welding, we combine precision GTAW/TIG, cleanroom driven workflows, and Class 100 (ISO Class 5) controls to deliver particle minimizing furniture and housings for semiconductor environments. For UHP assemblies and interfaces, our automated orbital tube welding with high purity argon purging supports contamination controlled joints.
Design and Material Basics for Cleanroom Furniture & Housings
Materials and finishes: 304L and 316L stainless steel for corrosion resistance to IPA and disinfectants, with 316L preferred near wet benches and chemical areas; aluminum used where weight is critical with cleanroom compatible finishes. For stainless steel fabrication details, see our stainless steel welding capabilities.
Geometry and hardware: Fully welded seams, continuous fillets, radiused internal corners, and hemmed edges to remove particle traps, with fasteners minimized or sealed using captive or blind designs that limit thread exposure.
Surfaces: Low roughness finishes on cleanable surfaces to reduce particle retention, with coatings specified for low outgassing where coatings are required.
ESD and shielding: Grounding provisions for ESD control on workstations and housings, and gasketed seams or shielding considerations where electronics require EMI protection.
Mobility: Cleanroom rated casters with sealed bearings, and antistatic treads where needed.
Contamination-Controlled Fabrication and Finish
Components are fabricated with documented cleanliness protocols, and sensitive subassemblies and final cleaning or packaging are performed in our Class 100 Cleanroom to limit particle loading prior to installation. GTAW/TIG provides distortion control and smooth bead profiles on thin gauge stainless steel and aluminum, which supports flatness, door fit up, and cleanable seams. Where furniture or housings interface with UHP utilities, such as gas panels or purge lines, our orbital tube welding with high purity argon purging supports oxide controlled internal surfaces and full penetration joints. Surface preparation includes degreasing and passivation, with finishes delivered per specification, and final DI rinsing and cleanroom wipe down to support site acceptance.
Semiconductor Equipment Housings: Structural and Service Requirements
Equipment housings benefit from tight control of panel flatness, door alignment, and gasket compression so that enclosures close properly and airflow integrity is maintained. Access and cable management features use smooth edged cutouts, sealed grommets, and serviceable panels selected for minimal particulation during maintenance. Vent patterns and plenums are laid out to respect laminar flow in cleanroom spaces, and filters or screens are positioned for changeout without introducing contamination. Mounting strategies may incorporate vibration damping to protect electronics and reduce any particle generation from micro motions. If you need a partner from design through build, our custom fabrication team supports enclosure development and integration.
Cleanroom Furniture: Durability and Cleanability
Work surfaces are specified as continuous, fully welded tops with drip edges, avoiding laminate seams that can harbor contaminants. Shelving and frames use tubular stainless with welded joints and radiused transitions, and open geometries that limit dust nesting and simplify cleaning. Accessories such as tool balancers, monitor arms, and utility rails can be integrated with concealed routing, and removable components are designed for cleanroom wipe down and straightforward maintenance. For project specific furniture builds, see our custom fabrication capabilities.
Validation, Standards, and Documentation
Our workflows and documentation align with semiconductor expectations derived from high purity and sanitary standards:
Cleanroom: ISO 14644-1 (Class 5/Class 100 conditions) controls for sensitive stages.
High-purity practices: SEMI F57 and SEMI F78 guidance for gas distribution components and particle control; ASME BPE and AWS D18.1 principles for crevice free, cleanable welds where applicable.
Quality systems: ISO 9001 with traceable material certs, weld maps (for UHP interfaces), inspection records, and as-built documentation supporting FAT/SAT needs.
Why Striking Precision
Our Class 100 cleanroom supports controlled handling, gowning, and airflow to protect parts from contamination. We provide precision GTAW/TIG for thin gauge stainless steel and aluminum housings and furniture, and automated orbital welding with high purity purging for UHP gas connections when they are integrated into enclosures. Through our custom fabrication services, we support projects from design for cleanability through final cleaning, packaging, and documentation.
Planning a new bay buildout or equipment upgrade? Explore our Class 100 cleanroom controls and orbital UHP capabilities, then engage our fabrication team to prototype and scale.