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Feasibility studies of the growth of 3-5 compounds of boron by mocvd
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Manasevit, H. M. |
| Copyright Year | 1988 |
| Description | Boron-arsenic and boron-phosphorus films have been grown on Si sapphire and silicon-on-sapphire (SOS) by pyrolyzing Group 3 alkyls of boron, i.e., trimethylborane (TMB) and triethylborane (TEB), in the presence of AsH3 and PH3, respectively, in an H2 atmosphere. No evidence for reaction between the alkyls and the hydrides on mixing at room temperature was found. However, the films were predominantly amorphous. The film growth rate was found to depend on the concentration of alkyl boron compound and was essentially constant when TEB and AsH3 were pyrolyzed over the temperature range 550 C to 900 C. The films were found to contain mainly carbon impurities (the amount varying with growth temperature), some oxygen, and were highly stressed and bowed on Si substrates, with some crazing evident in thin (2 micron) B-P and thick (5 micron) B-As films. The carbon level was generally higher in films grown using TEB as the boron source. Films grown from PH3 and TMB showed a higher carbon content than those grown from AsH3 and TMB. Based on their B/As and B/P ratios, films with nominal compositions B sub12-16 As2 and B sub1.1-1.3 P were grown using TMB as the boron source. |
| File Size | 6907855 |
| Page Count | 35 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880009959 |
| Archival Resource Key | ark:/13960/t8ff8p17n |
| Language | English |
| Publisher Date | 1988-03-01 |
| Access Restriction | Open |
| Subject Keyword | Solid-state Physics Thin Films Crystal Growth Soi Semiconductors Pyrolysis Boron Vapor Deposition Semiconductors Materials Organometallic Compounds Feasibility Analysis Boranes Amorphous Materials Substrates Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
