Amino replacements for arsine, antimony and phosphine

Abstract

Abstract The present invention addresses the use of metalorganic amines as metallic donor source compounds in reactive deposition applications. More specifically, the present invention addresses the use of the amino-substituted metallic donor source compounds M(NR2)3-xHx, where R is organic, alkyl or fluoroalkyl, and x is less than or equal to 2, and M=As, Sb or P, in processes requiring deposition of the corresponding element. These uses include a number of different processes; the metalorganic vapor phase epitaxy of compound semiconductor material such as GaAs, InP, AlGaAs, etc.; doping of SiO2 or borosilicate based glasses to enhance the reflow properties of the glass; in-situ n-type doping of silicon epitaxial material; sourcing of arsenic or phosphorus for ion implantation; chemical beam epitaxy (or MOMBE); and diffusion doping into electronic materials such as silicon dioxide, silicon and polycrystalline silcon. These types of materials generally have high volatilities, low toxicities, labile metal-ligand bonds, and stable decomposition products. Specifically, the use of tris(dialkylamino) arsenic (As(NR2)3) as a substitute for arsine in the manufacture of silicon integrated circuits, Group III-V compound semiconductors, optoelectronics and other electronic devices has been identified.

Inventors

• 👤 David A. Bohling
• 👤 Gregory T. Muhr
• 👤 Sherri L. Bassner

Bibliographic Details