Ag2Sn
metal· JVASP-156256· Ag2Sn
Ag₂Sn is an intermetallic compound composed of silver and tin, belonging to the precious-metal intermetallic family. It is primarily encountered in solder joint microstructures and lead-free solder systems, where it forms as a secondary phase during solidification and thermal aging of Ag-Sn-Cu alloys. This compound is notable for its role in controlling mechanical properties and long-term reliability of electronic interconnects; engineers select materials containing controlled Ag₂Sn precipitation to balance strength, creep resistance, and fatigue performance in high-reliability applications, particularly where thermal cycling or vibration exposure is a concern.
lead-free solder jointselectronic interconnectsthermal cycling reliabilitymicroelectronics assemblyautomotive electronicsaerospace solder reliability
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | kg/m³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — | |
Magnetic Moment(μB) | — | µB | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | — | eV/atom | — | — | |
Formation Energy(ΔHf) | — | 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.