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Products: MBE Sources

VESCO-NM designs and fabricates MBE sources with high quality and competitive price. Our MBE sources are compatible with all MBE machines and systems. VESCO-NM offers 5 year warranty for its sources.

 

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Corrosive Materials Valved Cracker

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DESCRIPTION:

VESCO-NM corrosive materials valved cracker is used, in MBE growth, to crack reactive materials with high-vapor pressure such as Sb, Zn, Se, Cd, CdTe, Te, and Mg. In this source, crucible and cracking tube and valve assembly are ALL manufactured from PBN to avoid any corrosion. The source has ONLY two integrated heaters for bulk and cracking zones, without heat separation or gap, to avoid materials condensation and to reduce the cost by using less number of power supplies and temperature controllers. Easy materials loading process is achieved using either the removable valve assembly or through the loading flange. The PBN valve assembly is designed to achieve fast flux stabilization, excellent uniformity across substrate, and quick and complete shut-off to minimize materials wasting.  The valve can be controlled by other vendors’ Automated Valve Positioners. Valve travel distance limits are secured by internal mechanisms to avoid any possible adjustment-related damages or stress on the PBN parts.

 

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Effusion Cells

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Effusion cells are the most vital components in an MBE system. They have considerable impact on the quality of the grown layer, such as surface morphology, thickness and composition uniformity, and film purity. System efficiency is greatly affected by effusion cells, regarding throughput and machine run time. VESCO-NM manufactures different sizes of effusion cells for various sources and purposes from low-temperature to high-temperature applications. Our effusion cells are compatible to different MBE machines (Veeco, Riber, etc.). VESCO-NM effusion cells can be installed in different orientations in MBE systems. VESCO-NM effusion cells heaters and thermocouples are unique in design and construction to achieve reliable and stable operation. VESCO-NM effusion cells are also easy to rebuild and to maintain.

 

VESCO-NM effusion cells are designed for:

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VESCO-NM effusion cells specifications:

 

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VESCO-NM Dual-Heater Effusion Cells Data

 

effusion cells photos

 

     

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Effusion Cell Heaters

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Best replacement for foil and 0.030' wire Ta heaters

 

VESCO-NM manufactures unique effusion cell heaters. Our heaters are made, for the first time, from one piece of 0.040" tantalum wire. Our heaters are designed and constructed for long lifetime operation and have the following specifications:

 

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Effusion Cell Thermocouples

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VESCO-NM designs and constructs effusion cell thermocouples that can be used in most effusion cells. Our thermocouple has the following unique specifications:

 

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Cracker Heaters

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VESCO-NM designs and fabricates many sizes and shapes of cracker heaters. Our cracker heaters can be used for different materials and gases and have the following specifications:


• Heaters are made of 0.040" Tantalum wires
• High cracking efficiency
• Compatible with all MBE systems
• Heater coils are protected between Tantalum tubes
• Used for Arsenic, phosphorus, and Antimony crackers
• Easy to maintain
• Temperature range up to 1400oC
• Low power consumption
• Competitive price

 

 

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RF Plasma Sources

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VESCO-NM RF plasma sources are used in many applications to produce low energy beam of atomic nitrogen, oxygen, and hydrogen. VESCO-NM Plasma Sources can also be used for doping and semiconductor processing applications. Our RF plasma sources demonstrated high dissociation efficiencies enables growth of high quality MBE Nitrides and Oxides for electronic and optoelectronic applications.

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VESCO-NM Plasma Source Specifications

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Nitorgen Plasma Results and Data

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                   Plasma Striking at 275 W and Stay Stable at 15 W

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 Hydrogen Plasma Results and Data

 

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Products: MBE Components

 

VESCO-NM designs and fabricates MBE components with high reliability and competitive price. Our MBE components are compatible with all MBE systems. VESCO-NM offers 5 year warranty for its components

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Sample Manipulator Heaters

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VESCO-NM designs and fabricates sample manipulator heaters for 2" and 3" wafers. Our sample manipulator heater elements are made from either Tantalum foil or one piece of 0.040" tantalum wire. The heater element is inserted and secured between PBN disks to insure uniform temperature distribution through out the surface. Our heaters are reliable and the thermocouple is placed in a secure position to achieve high temperature stability with the following specifications:

 

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Sample Holders

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VESCO-NM designs and fabricates many sizes of sample holders. Our sample holders are made:


     • For 2", 3" and quarter wafers
     • Compatible with all MBE systems
     • Strain-free epilayers
     • Easy and secure mounting
     • Fast loading process
     • Competitive price

 

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MBE Accessories

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VESCO-NM manufactures many accessories to assist MBE growers in handling and maintaining MBE components. VESCO-NM manufactures Tantalum tubes, stands, power connectors, and thermocouple guards. We design and build different accessories as shown.

 

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For inquiries please contact us

 

Products: MOCVD Components

VESCO-NM builds some MOCVD components and parts such as:


• Substrate heaters
• Thermocouples
• Gas cabinets
• Exhaust line scrubbers

 

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Please contact us to discuss your design requirements and applications

 

 

 


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