Comparison of the instability in device characteristics for thin-film SOI power n- and p-MOSFETs at high temperature under AC stress

In this study, we compare the device instability (hot carrier effect, negative bias temperature instability (NBTI), and positive bias temperature instability (PBTI)) of a thin-film Silicon on Insulator (SOI) power n-MOSFET and p-MOSFET at a high temperature under AC stress. For a p-MOSFET, the degradation rate of the on-resistance increases with an increase in temperature beyond 373 K. Contrarily, for an n-MOSFET, the degradation rate decreases with an increase in temperature. For a p-MOSFET, the threshold voltage shift increases with an increase in temperature due to the NBTI, whereas, for an n-MOSFET, it decreases with an increase in temperature. This is because the hot carrier effect decreases with an increase in temperature under AC stress. In this study, we clarify that the instability mechanism of the p-MOSFET under AC stress is different from that of the n-MOSFET.journal articl

供血反応と予防への援助について

Article信州大学医学部附属病院看護研究集録 1982: 22-28 (1982)departmental bulletin pape

Cuデュアルダマシンプロセスにおける電解複合CMPの基礎的研究(第2報)

Electro-CMP(Electro-Chemical Mechanical Polishing) was studied to reduce surface damage on copper and low-K dielectric for copper damascene process. It is indispensable to understand both copper surface oxidation and copper removal mechanism for accurate removal rate control. This study deals with the observation results of the polished copper surface by XPS (X-ray Photoelectron Spectroscopy) and AES(Auger Electron Spectroscopy). In particular, copper samples are measured immediately after polishing to estimate surface oxidation precisely. In addition, the depth profile of oxygen penetration into copper surface was evaluated to measure copper oxide layer thickness. As a result, the surface dipped in slurry for 30 min was oxidized 20A in depth. The formation of CuO on copper surface in Electro-CMP was less than that of conventional CMP. The oxygen penetration in Electro-CMP was loA in depth, less than 15A in conventional CMP.textapplication/pdfdepartmental bulletin pape

Observation of B̅0→DsJ*(2317)+K- Decay

journal articl

Solar neutrino measurements in Super-Kamiokande-II

The results of the second phase of the Super-Kamiokande solar neutrino measurement are presented and compared to the first phase. The solar neutrino flux spectrum and time variation as well as oscillation results are statistically consistent with the first phase and do not show spectral distortion. The timedependent flux measurement of the combined first and second phases coincides with the full period of solar cycle 23 and shows no correlation with solar activity. The measured 8B total flux is (2:38± 0.05(stat.)/begin+0.16 // -0.15/end (sys.)) × 10^6 cm^{-2} s^{-1} and the day-night difference is found to be (-6.3 ±4.2(stat.)±3.7(sys.))%.There is no evidence of systematic tendencies between the first and second phases.journal articl

平成長期不況(大瀧雅之縞)

書評 Book Reviewdepartmental bulletin pape

Mesosoma (side view) of a female of (Parque Nacional Soberanía, Panamá, CWEM)

<p><b>Copyright information:</b></p><p>Taken from "The ants of North and Central America: the genus (Hymenoptera: Formicidae)"</p><p>Journal of Insect Science 2004;4():-.</p><p>Published online 24 Aug 2004</p><p>PMCID:PMC1081568.</p><p>Copyright © 2004. Open access; copyright is maintained by the authors.</p

Mesosoma and petiole (side view) of the holotype worker of (modified from )

<p><b>Copyright information:</b></p><p>Taken from "The ants of North and Central America: the genus (Hymenoptera: Formicidae)"</p><p>Journal of Insect Science 2004;4():-.</p><p>Published online 24 Aug 2004</p><p>PMCID:PMC1081568.</p><p>Copyright © 2004. Open access; copyright is maintained by the authors.</p

Mesosoma, petiole and postpetiole (side view) of a female of (Río Frijolito, Panamá, CWEM)

<p><b>Copyright information:</b></p><p>Taken from "The ants of North and Central America: the genus (Hymenoptera: Formicidae)"</p><p>Journal of Insect Science 2004;4():-.</p><p>Published online 24 Aug 2004</p><p>PMCID:PMC1081568.</p><p>Copyright © 2004. Open access; copyright is maintained by the authors.</p> The inset shows the scutellum and propodeum as seen from above

Pronotum and mesonotum (top view) of a worker of , showing the crown of spines on the promesonotum (modified from )

<p><b>Copyright information:</b></p><p>Taken from "The ants of North and Central America: the genus (Hymenoptera: Formicidae)"</p><p>Journal of Insect Science 2004;4():-.</p><p>Published online 24 Aug 2004</p><p>PMCID:PMC1081568.</p><p>Copyright © 2004. Open access; copyright is maintained by the authors.</p> All figures are oriented with the anterior end of the ant to the left