Description
FSM 128 C2C, FSM 128L C2C Automated Film Stress & Wafer Bow Measurement Systems – Semiconductor Wafer Metrology
Global film stress measurements at room Temperature
The FSM 128 C2C and FSM 128L C2C Film Stress & Wafer Bow Measurement Systems are fully automated cassette-to-cassette semiconductor metrology systems designed for non-contact measurement of wafer curvature, wafer bow, and thin film stress characterization. These systems combine laser scanning technology, automated wafer handling, and advanced measurement software for semiconductor manufacturing, compound semiconductor applications, MEMS fabrication, thin film deposition, and production process monitoring.
The FSM 128 C2C supports 150–200 mm semiconductor wafers, while the FSM 128L C2C supports wafers up to 300 mm. Both systems provide automated wafer loading, measurement, and unloading to reduce manual wafer handling and support repeatable measurements in semiconductor production environments.
Key Features and Benefits
- Fully Automated Cassette-to-Cassette Operation: Automated wafer loading, measurement, and unloading for semiconductor production applications.
- Wafer Size Capability: FSM 128 C2C supports 150–200 mm wafers; FSM 128L C2C supports wafers up to 300 mm.
- Non-Contact Measurement: Laser scanning technology measures wafer curvature and bow without mechanical contact with the wafer surface.
- Thin Film Stress Measurement: Calculates tensile and compressive film stress using wafer curvature changes and film/substrate properties.
- Automated Wafer Handling: Reduces operator involvement and manual wafer handling during measurement.
- 2D/3D Mapping: Multiple diametric scans provide detailed wafer bow and curvature maps.
- Dual-Laser Technology: Accommodates different wafer surfaces and film reflectivities.
- Motorized Wafer Rotation: Supports measurements at multiple wafer orientations.
- Production Process Monitoring: Suitable for wafer bow and film stress monitoring during semiconductor manufacturing.
- Data Analysis and Reporting: Software provides wafer curvature, radius of curvature, bow, and calculated film stress results.
- Data Export: Measurement results and mapping data can be exported for process analysis and quality control.
- Room Temperature Operation: Designed for ambient-temperature wafer metrology.
FSM 128 C2C and FSM 128L C2C Technical Specifications
| Parameter | FSM 128 C2C | FSM 128L C2C |
|---|---|---|
| Equipment Type | Fully automated film stress and wafer bow measurement system | Fully automated film stress and wafer bow measurement system |
| Wafer Size | 150–200 mm | Up to 300 mm |
| Wafer Handling | Automated cassette-to-cassette | Automated cassette-to-cassette |
| Cassette Configuration | Cassette-to-cassette | Open cassette or FOUP configurations |
| Measurement Technology | Non-contact laser scanning | Non-contact laser scanning |
| Measurement Parameters | Wafer bow, curvature, radius of curvature, calculated thin film stress | Wafer bow, curvature, radius of curvature, calculated thin film stress |
| Laser Technology | Dual-laser measurement technology | Dual-laser measurement technology |
| Wafer Rotation | Motorized wafer rotation | Motorized wafer rotation |
| Mapping Capability | Multiple diametric scans and 2D/3D mapping | Multiple diametric scans and 2D/3D mapping |
| Measurement Operation | Automated wafer measurement sequence | Automated wafer measurement sequence |
| Film Stress Analysis | Tensile and compressive film stress calculation | Tensile and compressive film stress calculation |
| Operating Temperature | Ambient | Ambient |
| Software Functions | Measurement control, wafer mapping, data analysis, and reporting | Measurement control, wafer mapping, data analysis, and reporting |
Note: Measurement performance, wafer handling configuration, cassette compatibility, and software functions depend on the selected equipment configuration. Final specifications are subject to confirmation.
FSM 128 C2C and FSM 128L C2C Automated Wafer Handling
Both systems integrate automated cassette-to-cassette wafer handling with non-contact laser measurement technology. The systems are designed to support semiconductor production environments where repeatable wafer measurement and reduced operator involvement are important.
- Automated wafer loading from input cassette
- Wafer transfer to the measurement station
- Non-contact wafer curvature and bow measurement
- Programmable wafer rotation and multiple scan orientations
- Automated measurement data collection and analysis
- Wafer return to cassette after measurement
- Sequential wafer measurement for production monitoring
The FSM 128L C2C offers larger-wafer capability, with open cassette or FOUP configurations depending on system configuration.
Working Principle – Wafer Bow and Film Stress Measurement
The FSM 128 C2C and FSM 128L C2C use non-contact laser scanning technology to measure semiconductor wafer curvature. A laser beam scans across the wafer surface, and the reflected beam is detected to determine changes in wafer surface slope and curvature.
Multiple scans at different wafer orientations generate wafer bow and curvature maps. The system software processes the measurement data to evaluate wafer deformation and calculate the radius of curvature.
Thin film stress is calculated from the change in substrate curvature before and after film deposition using the appropriate substrate properties, film thickness, and stress calculation model, such as Stoney’s equation where applicable.
Automated wafer handling allows these measurements to be performed sequentially without manually loading each wafer into the measurement station.
Semiconductor and Thin Film Applications
Semiconductor Wafer Manufacturing
- Automated wafer bow and curvature measurement
- Thin film stress characterization
- Wafer deformation monitoring
- Semiconductor process monitoring
- Production quality control
- Wafer-to-wafer measurement comparison
Compound Semiconductor Applications
The FSM 128 C2C and FSM 128L C2C measurement technology is relevant to compound semiconductor wafer characterization, including:
- GaAs semiconductor wafers
- InP semiconductor wafers
- GaN epitaxial structures
- SiC semiconductor substrates
- Compound semiconductor thin film and epitaxial process development
Measurement suitability depends on substrate dimensions, optical reflectivity, material properties, wafer handling compatibility, and the selected system configuration.
MEMS and Advanced Semiconductor Devices
- MEMS thin film stress characterization
- Residual stress measurement
- Dielectric and metal film stress evaluation
- Wafer bow monitoring during process development
- Advanced packaging and wafer deformation studies
Thin Film Deposition Processes
The systems can be used to evaluate wafer curvature changes associated with:
- Physical Vapor Deposition (PVD)
- Chemical Vapor Deposition (CVD)
- Plasma Enhanced Chemical Vapor Deposition (PECVD)
- Atomic Layer Deposition (ALD)
- Epitaxial thin film growth
- Metal and dielectric thin film processing
2D/3D Wafer Bow and Stress Mapping
The FSM 128 C2C and FSM 128L C2C support programmable multiple diametric scans using motorized wafer rotation. Measurements at different wafer orientations allow users to evaluate wafer curvature variations and non-uniform deformation.
The mapping software provides measurement data for semiconductor process development, film stress characterization, wafer quality evaluation, and production monitoring.
- Single-line wafer curvature measurement
- Multiple-angle wafer scanning
- 2D wafer bow mapping
- 3D wafer surface profiling
- Film stress analysis
- Automated wafer-to-wafer measurement
- Measurement data export and reporting
Automated Measurement for Semiconductor Production
Compared with semi-automated FSM 128NT and FSM 128L systems, the FSM 128 C2C and FSM 128L C2C provide automated cassette-to-cassette wafer handling for semiconductor manufacturing environments.
The automated configurations are particularly useful for production applications requiring repeated measurements across multiple wafers, consistent measurement procedures, and reduced manual handling.
- Reduced operator involvement
- Automated wafer loading and unloading
- Consistent measurement sequences
- Improved wafer handling repeatability
- Production process monitoring
- Wafer-level measurement data collection
FSM 128 C2C and FSM 128L C2C Equipment Inquiry and Quotation
SemiStar Corp. welcomes inquiries from semiconductor manufacturers, compound semiconductor fabs, MEMS manufacturers, universities, research institutes, and semiconductor process development laboratories.
For an FSM 128 C2C or FSM 128L C2C equipment inquiry, please provide the required model, wafer size, substrate material, cassette or FOUP configuration, measurement applications, and any special automation or software requirements.
Equipment availability, configuration, pricing, delivery schedule, and commercial terms are subject to confirmation.
Frontier Semiconductor Measurements (FSM) – Semiconductor Metrology Equipment
SemiStar Corp. is a distributor of Frontier Semiconductor Measurements (FSM) semiconductor metrology equipment, providing measurement solutions for semiconductor manufacturing, compound semiconductor fabs, MEMS, advanced packaging, universities, and research laboratories.
FSM specializes in semiconductor wafer metrology and electrical characterization, including thin film stress, wafer bow, wafer curvature, wafer thickness, Total Thickness Variation (TTV), sheet resistance, four-point probe (4PP), and thin film adhesion testing. FSM measurement systems are available in desktop, semi-automatic, and fully automatic cassette-to-cassette configurations, depending on the equipment model.
FSM Semiconductor Metrology Equipment Models
- FSM 128NT / FSM 128L: Thin film stress, wafer bow, and wafer curvature measurement systems.
- FSM 128 C2C / FSM 128L C2C: Automated cassette-to-cassette thin film stress, wafer bow, and curvature measurement systems.
- FSM 500TC: High-temperature thin film stress and wafer curvature measurement system.
- FSM 900TC / FSM 900TC-VAC: High-temperature wafer stress and curvature measurement systems, including vacuum configurations.
- FSM 900TC C2C / FSM 900TC-VAC C2C: Fully automated cassette-to-cassette high-temperature stress and curvature measurement systems.
- FSM 413 MOT: Desktop wafer and thin film thickness measurement system using Echoprobe™ infrared interferometry.
- FSM 413 SA: Semi-automatic wafer and thin film thickness measurement system with enclosure.
- FSM 413 C2C: Fully automatic cassette-to-cassette wafer thickness, thin film thickness, and TTV measurement system.
- FSM 4PP: Contact four-point probe and non-contact sheet resistance measurement systems, including tabletop and automated cassette-to-cassette configurations.
- FSM MELT: Modified Edge Liftoff Test system for thin film and film stack adhesion measurement.
- FSM Aquaflex: Four-point bend film adhesion testing system for low-to-medium adhesion samples.
Semiconductor Metrology Applications
FSM equipment supports semiconductor process development, wafer characterization, thin film deposition evaluation, ion implantation, diffusion, metallization, wafer thinning, wafer bonding, MEMS fabrication, and advanced semiconductor manufacturing.
Contact SemiStar Corp. for FSM semiconductor metrology equipment selection, technical specifications, system configurations, and quotations.