Sn1 Bi3

semiconductor
· Sn1 Bi3

Sn1Bi3 is a bismuth-tin intermetallic compound belonging to the low-melting-point alloy family, notable for its potential as a lead-free solder or thermal interface material. This material is primarily of research interest for electronics packaging and thermal management applications where traditional lead-based solders are restricted, offering an alternative composition pathway within the Sn-Bi system that has been studied for reduced melting temperature and improved wetting properties. Its adoption remains largely experimental; engineers would evaluate it in applications requiring fine-tuned melting characteristics or where bismuth's specific properties provide distinct advantages over conventional tin-based solders.

lead-free solderthermal interface materialselectronics packaginglow-temperature joiningresearch/emerging applications

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Band Gap(Eg)
—
eV——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
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eV/atom——
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.