Studies by electron and photon spectroscopy show that plasma grown GaAs oxide possesses an excess amount elemental As at the oxide - GaAs interface. This amount has been found to be inversely proportional to the growth rate. The excess elemental As is deleterious to the electrical properties of MOS devices. A selective plasma oxidation process using fluorinated oxygen gas shows that the excess As at the interface can be greatly reduced. The resultant electrical properties are also improved.
|Title of host publication||Proceedings of the Conference on Solid State Devices|
|Publisher||Jpn J of Appl Phys (v 19 Suppl 1|
|Number of pages||36|
|Publication status||Published - 1980|
ASJC Scopus subject areas