Si4

semiconductor

· Si4

Si4 is a silicon-based semiconductor material, likely a silicon carbide (SiC) polymorph or silicon nitride variant based on its designation, though exact composition details are not specified. It is employed in high-temperature electronics, power conversion devices, and harsh-environment applications where thermal stability and electrical performance are critical. This material class is chosen over traditional silicon when operating temperatures exceed ~150°C or when superior mechanical strength under thermal stress is required, making it valuable in automotive power electronics, industrial inverters, and aerospace systems.

high-temperature power electronicswide-bandgap semiconductorsautomotive converters and invertersaerospace thermal managementindustrial motor drivesRF and microwave devices

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	12,648.9	ksi	—
Shear Modulus(G)	9,042.7	ksi	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.03080	eV	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	0.01400	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.

Si4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control