K4

semiconductor

· K4

K4 is a semiconductor material with a composition that remains proprietary or unspecified in available documentation, likely representing either a research compound, trade-designated alloy, or specialized dopant system. Without confirmed elemental composition, K4 appears positioned within semiconductor research contexts, potentially for optoelectronic or high-frequency device applications where its moderate elastic stiffness characteristics could support substrate or packaging roles.

semiconductor substratesoptoelectronic devicesresearch materialshigh-frequency electronicsthin-film applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	3.822	GPa	—
Shear Modulus(G)	1.353	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00760	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	0.000	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.

K4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control