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Post-metallization annealing of metal-tunnel oxide-silicon diodes (1993)

Lundgren, P. ; Andersson, M. O. ; Farmer, K. R.

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 74 (1993), S. 4780-4782

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: We report a post-metallization annealing study of very thin oxide (2.4–3.2 nm), aluminum gate metal-tunnel oxide-(p) silicon devices. Voltage dependence measurements of both tunnel current and high-frequency capacitance as functions of anneal time and temperature reveal that annealing the thin oxide devices after metallization leads to a decrease in interface state density, with dynamics which are similar to, though slower than, what has been observed in thicker oxide aluminum gate systems.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.355311

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Mechanism of the inhibitory effect of PAS granules on the absorption of rifampicin: Adsorption of rifampicin by an excipient, bentonite (1975)

Boman, G. ; Lundgren, P. ; Stjernström, G.

Springer

European journal of clinical pharmacology 8 (1975), S. 293-299

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ISSN: 1432-1041

Keywords: Rifampicin ; p-aminosalicylic acid ; bentonite ; drug interaction ; bioavailability ; drug adsorption

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology , Medicine

Notes: Summary The bioavailability (plasma concentrations, AUC and urinary excretion) of an oral solution of rifampicin was investigated in six healthy volunteers. Simultaneous administration of PAS granules produced a significant decrease in the absorption of RMP, whereas Na-PAS tablets had no effect. This indicated that the dosage form of the granules and not PAS itself was responsible for the interaction, and that the dissolution of RMP was not involved. The interaction could be reproduced by giving dummy granules that contained the same excipients but no PAS. The disintegration and dissolution of PAS granulesin vitro correlated well with the disappearance of RMP from the solution. The major excipient of the granules, bentonite (a mineral closely related to kaolin), was found to adsorb rifampicin rapidly and strongly.