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How high-purity MoO2Cl2 reshapes the limits of atomic layer deposition processes
Core product features: molecular design that accurately matches advanced processes.
MoO2Cl2 has molecular structural advantages in the ALD process. MoO2Cl2 is a tetrahedral configuration. The molybdenum atom is centrally symmetrically bonded to 2 oxygen atoms and 2 chlorine atoms, giving its molecule ultra-high thermal stability (decomposition temperature>350℃), meeting the needs of ALD high-temperature processes. MoO2Cl2 has dual active sites, oxygen atoms provide coordination capabilities, and chlorine atoms achieve controlled hydrolysis reactions. The deposition rate is 40% higher than that of traditional MoCl5. MoO2Cl2 is the perfect material to solve the problem of step coverage defects in 2D material deposition.
Disruptive application scenarios: breakthroughs in the entire chain from transistors to memory
(1)Logic chips: The revolution of molybdenum gates replacing polysilicon. A MoO2 thin film was deposited by ALD to replace the traditional TiN/TaN stack, reducing the thickness of the FinFET gate by 30%.
(2) DRAM capacitors: dielectric layer nanoengineering. MoO3/High-k stack deposition: Using the alternating deposition of MoO2Cl2 and HfCl4, a composite dielectric layer with a k value of>30 is achieved, and the capacitance per unit area is increased by 5 times.
(3) GAA transistor: The key interface layer of the two-dimensional channel- MoS2 atomic layer epitaxy: A single layer of MoS2 is directly grown on a SiO2/Si substrate (reaction formula: MoO2Cl2 +2H2S → MoS2 + 2HCl + H2O).
| Pain point scene | MoCl5 protocol flaws | MoO2Cl2 solution |
| high aspect ratio structural deposition | Uneven sidewall thickness (>20%) | Step coverage rate>95% |
| Low temperature process compatibility | Requires activation at>300℃ | Reactable at 180℃ |
| Interface defect control | Chlorine corrosion causes interface states>10 12 | interface state density＜10¹⁰ |
| thermal budget | Thermal decomposition temperature window | stable range＞150℃ |
Demonstration of customer value
mass-production benefit data: 1. Cost reductions have increased molybdenum utilization to 85%(traditional processes ≤60%); single wafer precursor consumption has been reduced to 120mg (5nm node data). 2. The yield has broken through. Compared with traditional processes, the yield has increased from 92.1% to 99.3% 3. Carbon footprint optimization reduces CO2 emissions by approximately 48 tons per 10,000 wafers (reduces exhaust gas treatment load through improved reaction efficiency).
"When Moore's Law approaches the limits of physics, material innovation becomes the final engine. MoO2Cl2 is not only a chemical, but also a molecular key to reconstructing the micro world of chips. On the atomic scale, the precise dance of molybdenum and oxygen chloride is interpreting the next chapter of the computing power revolution."
