Applications for 125mm (5 Inch) Silicon Wafers
125mm silicon wafers, also known as 5 inch silicon wafers, are widely used in semiconductor manufacturing, MEMS devices, sensors, solar cells, photonics, and thin-film deposition research. Their larger surface area compared to 100mm wafers provides additional usable space while maintaining relatively low production costs.
Researchers and engineers use 125mm silicon substrates for photolithography, wafer bonding, microelectronics, RF devices, and thin-film coatings. Both P-type and N-type silicon wafers are available with various orientations, resistivity ranges, thicknesses, and polish options to meet specific device requirements.
Common Uses for 125mm Silicon Wafers
- Solar cell and photovoltaic research.
- MEMS device fabrication.
- Semiconductor process development.
- Thin-film deposition and epitaxy.
- Sensor and detector fabrication.
- Photolithography and wafer bonding.
- Microelectronic and RF applications.
- University and laboratory research.
Available Wafer Types
UniversityWafer, Inc. supplies custom and standard 125mm silicon wafers including float-zone silicon wafers, high-resistivity substrates, heavily doped silicon wafers, and thermal oxide coated wafers. Wafer orientations such as <100> and <111> are available with single-side polished (SSP) and double-side polished (DSP) surfaces.
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125mm Silicon Wafers / 5 Inch Silicon Wafers
UniversityWafer, Inc. supplies 125mm silicon wafers, also known as 5 inch silicon wafers, for research, semiconductor testing, MEMS fabrication, solar cell development, thin-film deposition, sensors, and production applications. We offer a variety of silicon wafer specifications including different dopants, orientations, resistivity ranges, thicknesses, polish types, and grades.
Available 125mm Si wafers may include P-type boron doped silicon, N-type phosphorus doped silicon, N-type arsenic doped silicon, high-resistivity float-zone wafers, single-side polished wafers, double-side polished wafers, test grade wafers, mechanical grade wafers, and SEMI prime grade wafers.
125mm Silicon Wafer Inventory
The table below lists examples of 125mm and 5 inch silicon wafers available for research and production. Please contact us for current inventory, pricing, minimum order quantity, and custom wafer specifications.
Common 125mm Silicon Wafer Specifications
- Diameter: 125mm / 5 inch silicon wafers.
- Crystal orientation: <100> and <111> silicon wafers.
- Dopants: Boron, phosphorus, arsenic, and antimony doped silicon.
- Conductivity: P-type and N-type silicon wafers.
- Resistivity: Low-resistivity, standard-resistivity, and high-resistivity options.
- Growth method: Czochralski and float-zone silicon wafers.
- Polish: SSP, DSP, P/E, E/E, oxide polished, and test-grade options.
- Applications: MEMS, sensors, thin films, solar cells, semiconductor testing, and device fabrication.
Applications for 125mm Silicon Wafers
125mm silicon wafers are used in many semiconductor and research applications because they provide a useful balance between wafer area, handling size, and cost. They are commonly used for MEMS devices, sensors, photolithography, thin-film deposition, wafer bonding, solar research, and microelectronic device fabrication.
High-resistivity 125mm silicon wafers are often selected for RF, detector, MEMS, and sensor applications, while low-resistivity doped wafers are used for electrical testing, device development, and conductive substrate applications. Float-zone silicon wafers are preferred when high purity and tight electrical control are required.
125mm Silicon Wafers Compared to Other Diameters
A 125mm wafer is approximately equal to a 5 inch silicon wafer. This diameter is larger than 100mm wafers and smaller than 150mm silicon wafers and 200mm silicon wafers. Researchers often choose 125mm wafers when they need more usable surface area than a 4 inch wafer but do not require larger production-scale diameters.