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Gallium Arsenide (GaAs) Evaporation Material, Pieces, 99.9%, 1-3 mm
Product Type: Compound Evaporation Material
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For material selection, deposition-source matching, pack-size confirmation or quotation support, contact our technical sales team.
INQUIRY: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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Gallium Arsenide (GaAs) evaporation material requires decomposition review for e-beam evaporation and specific crucible materials to prevent contamination. Thermal evaporation using quartz, alumina, or graphite crucibles is recommended, with melting point and piece size dictating source loading parameters.
- E-beam Decomposition Review: E-beam evaporation must be preceded by decomposition review to avoid material degradation.
- Crucible Compatibility: Only quartz, alumina, or graphite crucibles are compatible for thermal evaporation of GaAs.
- Melting Point Constraint: The melting point of 1,238°C sets the maximum source temperature for evaporation to prevent decomposition.
- Piece Size Consideration: Pieces of 1-3 mm must be loaded to match the deposition source geometry for consistent evaporation.
Is thermal or e-beam evaporation recommended for Gallium Arsenide pieces, and what precautions are required?
Thermal evaporation by RFQ is the primary recommended method. E-beam evaporation is only acceptable after a decomposition review; the material is noted to have good e-beam performance when using a quartz, alumina, or graphite crucible or a sealed-source setup by RFQ.
Which crucible materials are compatible with GaAs evaporation in e-beam systems?
Compatible crucible materials include quartz, alumina, and graphite. For thermal evaporation, graphite, tungsten, and tantalum are also listed as sheet hardware options. The specific choice depends on the deposition method and process conditions; RFQ is recommended for confirmation.
What are the melting point and density of the GaAs pieces, and how do they affect source loading?
The melting point is 1,238 °C and density is 5.3 g/cm³. These values are critical for determining crucible temperature limits, source charge volume, and the appropriate evaporation method to avoid thermal decomposition or incomplete melting.
This Gallium Arsenide (GaAs) evaporation material (99.9% purity, 1-3 mm pieces) is evaluated for vacuum thin-film deposition. Its defined material identity and physical form support source loading, but the requirement for RFQ for thermal evaporation and decomposition review for e-beam use necessitates careful process qualification.
Positive
- Defined purity and physical form: 99.9% purity and 1-3 mm piece size ensure clear procurement matching and controlled source loading for vacuum deposition.
- Multi-method evaporation compatibility: Compatible with thermal evaporation (by RFQ) and e-beam evaporation (after decomposition review) using quartz, alumina, or graphite crucibles, offering flexibility in deposition setup.
Trade-offs
- RFQ required for thermal evaporation: Thermal evaporation process requires RFQ confirmation, and e-beam evaporation requires a prior decomposition review, adding procedural steps before use.
- High melting point handling: Melting point of 1238°C demands high-temperature crucible materials and careful thermal management to avoid decomposition or contamination.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
