Product overview
This dual-chamber magnetron sputtering system is built specifically for infrared focal plane device manufacturing. Its main function is to deposit ZnS/CdTe composite passivation films on HgCdTe epitaxial layers, a critical step in the fabrication of high-performance infrared detectors.
By combining mature magnetron sputtering with a dual-chamber structure, the system lets users precisely control film growth parameters. It reliably produces uniform, dense passivation layers, helping improve the performance and stability of infrared focal plane arrays in real production.
Advantages
Cluster architecture reduces cross-contamination
The cluster design and multi-process layout help keep passivation and oxidation processes separate, which cuts down cross-contamination and keeps film quality consistent.
Low-temperature substrate protects HgCdTe materials
Running at lower substrate temperatures helps prevent Hg atoms from escaping during deposition. This preserves the original material properties of HgCdTe epitaxial layers, which is important for final device performance.
Bottom-up sputtering lowers particle defects
Using a bottom-up sputtering approach reduces dust and particle buildup on the wafer surface. This leads to cleaner films and fewer defects, which in turn improves overall yield.
Precise temperature control supports stable processing
Temperature is controlled to within ±0.5°C across a range of 0°C to 140°C, and the system works with 4–8 inch wafers. This level of control helps ensure uniform film growth across the wafer and repeatable results from batch to batch.
Applications
The system is mainly used in R&D and mass production of infrared focal plane devices, with a core focus on depositing ZnS/CdTe composite passivation films on HgCdTe wafers.
It's a critical piece of equipment in the high-sensitivity infrared detector supply chain, widely used in aerospace, military reconnaissance, industrial thermal imaging, and scientific research for infrared imaging device fabrication.
FAQ
FAQ
Q: 1. What is a dual-chamber magnetron sputtering system?
A: It is a specialized deposition tool designed for infrared focal plane device manufacturing, used to deposit ZnS/CdTe composite passivation films on HgCdTe epitaxial layers.
Q: 2. What are the main applications of this system?
A: It is mainly used in the R&D and mass production of high-sensitivity infrared detectors, widely applied in aerospace, military reconnaissance, industrial thermal imaging, and scientific research.
Q: 3. What are the core advantages of dual-chamber design?
A: Cluster architecture avoids cross-contamination in passivation and oxidation processes; low-temperature substrate design suppresses Hg atom escape; bottom-up sputtering reduces particle defects; high-precision temperature control ensures film uniformity.
Q: 4. What is the temperature control accuracy and range?
A: Temperature control accuracy ≤±0.5°C, substrate temperature adjustable from 0°C to 140°C, compatible with 4–8 inch wafers.
Q: 5. Why choose this system for HgCdTe passivation?
A: It provides a clean, low-temperature, high-uniformity deposition environment, protecting material properties and ensuring high-quality ZnS/CdTe films critical for infrared device performance.
Q: 6. What key specs should buyers focus on?
A: Wafer size compatibility, temperature range and precision, chamber structure, sputtering mode, and contamination control capability.
Q: 7. Is customization available?
A: Yes, we support customization of chamber size, temperature system, and process parameters to match R&D and mass production needs.
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