Electronic Specialty Gas Diborane B2H6

Features Of Electronic Specialty Gas Diborane B2H6

1. Ultra-high purity (99.999% minimum) with stringent control of metallic impurities (<1 ppb) and moisture (<0.1 ppm).

2. Consistent batch-to-batch performance validated via GC-MS and FTIR spectroscopy for semiconductor process repeatability.

3. Supplied in specially passivated stainless-steel cylinders with VCR® fittings to prevent adsorption, decomposition, or contamination.

4. Stabilized formulation with trace hydrogen dilution to enhance handling safety and thermal stability during delivery.

5. Compliant with SEMI C37 (Global Specifications for Electronic Gases) and ISO 8573-1 Class 1 for particulate and gaseous contaminants.

Typical Applications Of Electronic Specialty Gas Diborane B2H6

1. Dopant source for p-type epitaxial silicon (Si) and silicon-germanium (SiGe) layers in advanced CMOS and RF device fabrication.

2. Reactive precursor in low-pressure chemical vapor deposition (LPCVD) and atomic layer deposition (ALD) of boron-containing thin films.

3. Boron doping agent in ion implantation pre-amorphization and in-situ doped epitaxy for power semiconductors.

4. Catalyst promoter and reducing agent in high-k dielectric interface engineering and metal gate stack formation.

5. Key boron source for MEMS-based piezoresistive sensor fabrication requiring precise resistivity control.

Specifications Of Electronic Specialty Gas Diborane B2H6

Compatible Systems Of Electronic Specialty Gas Diborane B2H6

Electronic Specialty Gas Diborane B2H6 – Frequently Asked Questions (FAQ)

Q1: What is the CAS Registry Number for diborane (B₂H₆)?

A: The CAS Registry Number for diborane is 19287-45-7.

Q2: How does diborane compare to alternative boron precursors such as trimethylborate (TMB) or boron trichloride (BCl₃) in terms of doping efficiency?

A: Diborane offers superior boron incorporation efficiency and lower thermal budget than TMB, and avoids chlorine-related corrosion and residue issues associated with BCl₃—making it preferred for high-fidelity p-type doping in sub-28 nm nodes.

Q3: Is electronic-grade diborane compatible with standard stainless-steel gas distribution systems?

A: Yes—when supplied in passivated SS-316L cylinders with electropolished internal surfaces and VCR® connections, diborane maintains integrity in properly purged, moisture-free stainless-steel lines meeting SEMI F57 standards.

Q4: What safety certifications and transport classifications apply to electronic specialty diborane?

A: It is classified as UN 1928, Hazard Class 2.3 (Toxic Gas), Packing Group I; compliant with DOT 49 CFR, IMDG Code, and ADR/RID for transport; cylinders certified to ISO 9809-1 and PED 2014/68/EU.

Q5: Can diborane be used in continuous-flow ALD processes without significant precursor carryover or wall deposition?

A: Yes—when paired with optimized pulsing sequences, rapid N₂/H₂ purge cycles, and heated manifold zones (>80 °C), diborane demonstrates minimal residence time and negligible reactor wall accumulation in production-scale ALD tools.