Sheet resistance of GaAs conductive layers isolated by proton irradiation
摘要:
A simple null charge model was employed to describe GaAs sheet resistance evolution as a function of proton implantation fluence using a previous knowledge of the irradiation created defect characteristics. In the specific case of GaAs irradiated with protons, three different irradiation related defect schemes were analyzed. Data obtained by both n-type and p-type majority carrier DLTS should be used together to give correct information about compensating deep centers. For a good estimation of isolation process by ion irradiation, not only the defects energy levels and introduction rates must be obtained, but also the corresponding charge transitions should be known. (c) 2005 Elsevier B.V. All rights reserved.
Sheet resistance of GaAs conductive layers isolated by proton irradiation
摘要:
A simple null charge model was employed to describe GaAs sheet resistance evolution as a function of proton implantation fluence using a previous knowledge of the irradiation created defect characteristics. In the specific case of GaAs irradiated with protons, three different irradiation related defect schemes were analyzed. Data obtained by both n-type and p-type majority carrier DLTS should be used together to give correct information about compensating deep centers. For a good estimation of isolation process by ion irradiation, not only the defects energy levels and introduction rates must be obtained, but also the corresponding charge transitions should be known. (c) 2005 Elsevier B.V. All rights reserved.
THERAPEUTICALLY ACTIVE COMPOSITIONS AND THEIR METHODS OF USE
申请人:Cao Sheldon
公开号:US20140206673A1
公开(公告)日:2014-07-24
Provided are compounds of formula (I), wherein X, Y, Z, W, V, R
2
, R
3
and m are defined as in the description. Their pharmaceutical compositions and their uses for treating cancers are also provided.
Compounds and pharmaceutically acceptable salts and esters and compositions thereof, for treating viral infections are provided. The compounds and compositions are useful for treating Pneumovirinae virus infections. The compounds, compositions, and methods provided are particularly useful for the treatment of Human respiratory syncytial virus infections.
Sheet resistance of GaAs conductive layers isolated by proton irradiation
作者:A.V.P. Coelho、H. Boudinov
DOI:10.1016/j.nimb.2005.11.149
日期:2006.4
A simple null charge model was employed to describe GaAs sheet resistance evolution as a function of proton implantation fluence using a previous knowledge of the irradiation created defect characteristics. In the specific case of GaAs irradiated with protons, three different irradiation related defect schemes were analyzed. Data obtained by both n-type and p-type majority carrier DLTS should be used together to give correct information about compensating deep centers. For a good estimation of isolation process by ion irradiation, not only the defects energy levels and introduction rates must be obtained, but also the corresponding charge transitions should be known. (c) 2005 Elsevier B.V. All rights reserved.