Cleanroom Safety and Introduction to Cleanroom Processing

Course Description

ETS2163C — Cleanroom Safety and Introduction to Cleanroom Processing is a 3-credit, combined lecture and laboratory course in the Engineering Technologies: Specialty (ETS) taxonomy of Florida's Statewide Course Numbering System (SCNS). The course provides a foundational study of cleanroom facilities, contamination control, safety protocols, and introductory processing operations. Students are introduced to various types of cleanroom standards and protocols, cleanliness and filtration requirements, environment testing and particle monitoring, and contamination issues. Hands-on laboratory activities reinforce lecture content and prepare students for entry-level work in semiconductor, microelectronics, pharmaceutical, aerospace, and related advanced manufacturing environments.

This course is a core requirement in the Semiconductor Cleanroom Operator Technical Certificate and the A.S. in Semiconductor Engineering Technology at participating Florida colleges. The "C" lab indicator denotes that lecture and laboratory components meet together in an integrated format.

Learning Outcomes

Required Learning Outcomes

Upon successful completion of this course, students will be able to:

• Identify and apply cleanroom safety protocols, including proper use of personal protective equipment (PPE) and emergency procedures.
• Demonstrate correct gowning and de-gowning (donning and doffing) procedures and proper cleanroom entry and exit techniques.
• Explain the principles of contamination control, including sources of particulate contamination and behaviors that minimize turbulence and particle generation.
• Classify cleanrooms according to ISO 14644 and applicable U.S. federal standards, and describe the significance of each classification level.
• Describe the architectural features and environmental control systems common to cleanrooms, including HEPA/ULPA filtration, airflow design (unidirectional and non-unidirectional), temperature, humidity, and pressure control.
• Identify and follow cleanroom protocols and standard operating procedures (SOPs) required for regulatory compliance.
• Perform basic particle monitoring and environmental testing procedures to verify cleanroom cleanliness levels.
• Recognize and mitigate common chemical and physical hazards present in cleanroom environments, including toxic gases, flammable materials, and wet-bench chemical handling.
• Maintain and operate cleanroom facilities in alignment with the policies and regulations for a safe cleanroom environment.
• Demonstrate professional and ethical responsibilities required by semiconductor and advanced manufacturing industries.

Optional Learning Outcomes

Depending on institutional emphasis and available equipment, students may also:

• Perform introductory photolithography steps and describe their role in the fabrication sequence.
• Handle semiconductor wafers correctly and document process steps using a wafer traveler.
• Collect and interpret basic Statistical Process Control (SPC) data from cleanroom processing activities.
• Describe the principles of electrostatic discharge (ESD) protection and identify ESD-sensitive components and controls.
• Explain the role of vacuum systems in cleanroom processing environments and identify common vacuum-related hazards.
• Identify the regulatory frameworks of cGMP, USP, and FDA as they apply to cleanroom operations in pharmaceutical or medical device contexts.

Major Topics

Required Topics

1. Introduction to Cleanrooms
   • Definition and purpose of controlled environments
   • Industries that rely on cleanrooms (semiconductor, pharmaceutical, aerospace, medical device, biotech)
   • Overview of cleanroom design: hardwall, softwall, and modular configurations
2. Cleanroom Classification Standards
   • ISO 14644-1 classification system (ISO Class 1–9)
   • U.S. Federal Standard 209E (historical context and industry equivalency)
   • Particle count specifications and measurement methods
3. Contamination Control
   • Sources of contamination: personnel, equipment, materials, processes, and facility
   • Viable and non-viable particulate contamination
   • Contamination reduction behaviors and movement protocols
4. Cleanroom Safety
   • Personal Protective Equipment (PPE) selection and use
   • Chemical hazards: acids, solvents, hydrofluoric acid, and toxic gases
   • Emergency procedures: gas leak response, Emergency Gas Off (EGO) systems, eyewash and safety showers
   • Fire safety and evacuation protocols
   • Radiation sources (non-ionizing) and UV exposure risks
5. Gowning Procedures
   • Cleanroom garment types and material properties
   • Step-by-step donning and doffing sequences
   • Gowning room protocols and hygiene requirements
6. Cleanroom Environmental Systems
   • HEPA and ULPA filtration
   • Unidirectional (laminar) and non-unidirectional airflow patterns
   • Temperature, humidity, and differential pressure control
   • Air change rates and recirculation systems
7. Environmental Monitoring and Testing
   • Particle counters and monitoring instrumentation
   • Viable particle sampling techniques
   • HEPA filter integrity testing
   • Cleanroom certification procedures per ISO 14644
8. Cleanroom Protocols and SOPs
   • Standard Operating Procedures for entry, exit, and material transfer
   • Pass-through and airlock use
   • Cleaning and disinfection procedures
   • Documentation and recordkeeping requirements
9. Introduction to Cleanroom Processing
   • Overview of semiconductor fabrication steps: wafer preparation, doping, etching, thin film deposition, and packaging
   • Role of the cleanroom in each major process step
   • Introduction to wet-bench operations and chemical handling
   • Equipment identification and safe operation basics
10. Regulatory Compliance Overview
    • OSHA standards relevant to cleanroom work environments
    • ISO 14644 series and SEMI standards for semiconductor cleanrooms
    • Industry-specific regulations (IEST guidelines, cGMP awareness)

Optional Topics

• Electrostatic Discharge (ESD) protection principles and grounding practices
• Introduction to photolithography: photoresist application, exposure, and development
• Basic wafer handling and traveler documentation
• Introduction to vacuum technology and its role in processing
• Statistical Process Control (SPC) fundamentals and data collection in a cleanroom context
• Introduction to USP 797/800 compounding pharmacy cleanroom standards (for programs with pharmaceutical emphasis)
• Nanotechnology and biotech cleanroom applications

Resources & Tools

• Standards Documents: ISO 14644-1 (Cleanroom Classification), ISO 14644-4 (Design and Construction), SEMI S2 (Environmental, Health and Safety Guideline for Semiconductor Manufacturing Equipment)
• Laboratory Equipment: Particle counters, gowning stations, cleanroom suits and PPE, wet benches, HEPA filter test apparatus, environmental monitoring instruments
• Reference Texts: Industry-standard cleanroom operations manuals; IEST recommended practices; institutional SOPs
• Online Resources: Florida SCNS course database (flscns.fldoe.org); SEMI industry standards portal; OSHA chemical hazard communication resources
• Software/Tools: SPC data entry software; digital wafer traveler documentation systems (where available)

Career Pathways

Successful completion of this course supports entry into the following career areas:

• Semiconductor Processing Technician — Operates and monitors equipment used in the fabrication of integrated circuits and semiconductor devices
• Cleanroom Facility Operator/Manager — Maintains cleanroom environments and enforces contamination control protocols
• Microelectronics Fabrication Technician — Performs hands-on wafer processing steps in ISO-classified cleanrooms
• Pharmaceutical/Biotech Cleanroom Technician — Works in ISO-classified environments for sterile compounding, medical device manufacturing, or biologic production
• Aerospace Manufacturing Technician — Supports precision manufacturing requiring contamination-controlled environments
• Quality Assurance/Control Technician — Monitors and documents environmental conditions and process compliance in regulated cleanrooms

Employment of semiconductor processing technicians is projected to grow approximately 13 percent over the next 10 years, much faster than the average for all occupations, with approximately 3,400 openings projected annually nationwide. This course is stackable toward the Semiconductor Cleanroom Operator Technical Certificate and the A.S. in Semiconductor Engineering Technology, with a transfer pathway to a B.S. in Semiconductor Engineering Technology at the University of Central Florida (UCF).

Special Information

Industry Alignment: Course content is aligned with workforce needs identified under the CHIPS and Science Act, which has accelerated domestic semiconductor manufacturing investment. Florida colleges offering this course have received state and federal grant funding to equip advanced cleanroom teaching labs with industry-standard equipment and test instrumentation.

Certification Preparation: While this course does not directly award an industry certification, the content supports preparation for industry credentials and hiring standards used by semiconductor manufacturers, including familiarity with SEMI safety standards, ISO 14644 compliance, and cGMP awareness. Students completing the full Semiconductor Cleanroom Operator Technical Certificate (18 credits) are prepared for entry-level employment as cleanroom facility operators or managers.

Lab Indicator: The "C" suffix in the SCNS course number (ETS2163C) designates this as a combined lecture and laboratory course, meaning lecture and hands-on lab activities are integrated in the same instructional session. A lab fee may apply; consult the offering institution for current fee schedules.

Safety Prerequisite Note: Students should expect to complete a safety orientation and sign cleanroom access agreements before participating in laboratory activities. Some institutions may require background checks or health screenings consistent with chemical exposure policies.