silicon germanium


Also found in: Dictionary, Thesaurus, Medical, Acronyms.

silicon germanium

(SiGe) A semiconductor material made from silicon and germanium. Germanium is very similar to silicon, but when one layer is grown on top of the other to form the base of the transistor, the resulting transistor can switch faster and yield higher performance.

SiGe transistors are compatible with standard fabrication processes and are built on the same chip with silicon transistors to create high-frequency circuits. Only a handful of SiGe transistors are used in mobile phones, while tens of thousands are used in optical switches, DACs and ADCs. See silicon and strained silicon.
References in periodicals archive ?
It also said that silicon germanium works at high frequencies while also consuming less power than its competitors.
IBM continues to push Silicon Germanium technology to new levels," said David Rowe, co-founder and chief technology officer for Sierra Monolithics.
The transistor uses a modified design and IBM's proven silicon germanium (SiGe) technology to reach speeds of 210 GigaHertz (GHz) while drawing just a milliamp of electrical current.
In selecting Jazz for the award, Frost & Sullivan, an international strategic market and growth consulting firm, acknowledged that the company has established itself in the pure-play foundry market for the silicon germanium (SiGe) process in a very short span and has demonstrated its ability to provide multi-fab services.
Strained silicon, combined with our prior advances in copper, silicon-on-insulator, silicon germanium and low-K materials, will allow us to maintain our one-to-two year lead in semiconductor technologies over the rest of the industry.
The transponder incorporates several Silicon Germanium (SiGe) chipsets developed by Big Bear, including the full CMU/Mux and CDR/Demux, contributing significantly to the high performance and reliability of the transponder.