Au5Sn

metal

· Au5Sn

Au5Sn is a gold-tin intermetallic compound belonging to the precious metal alloy family, commonly encountered in gold metallurgy and solder applications. This phase is particularly relevant in microelectronics packaging, jewelry, and brazing operations where gold-tin systems are used to achieve controlled melting points and enhanced mechanical properties. Engineers select gold-tin alloys over pure gold or tin-only alternatives when high reliability, corrosion resistance, and thermal stability are required in demanding environments such as semiconductor bonding and aerospace interconnects.

semiconductor bonding and die attachmentmicroelectronic interconnectsprecious metal brazingjewelry alloysthermal interface materialshigh-reliability solder applications

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.01350	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.

Au5Sn

Other Properties

Regulatory Screening

Environmental

Export Control