În această lucrare prezentăm modelarea comportării unei fotodiode CMOS cu difuzie de tip n realizată printr-un proces CMOS AMS 0.35 μm. Am simulat, folosind programele T-CAD, comportarea curentului fotogenerat şi a curentului de întuneric al fotodiodei, iar apoi am comparat rezultatele cu cele provenite dintr-un model comportamental al dispozitivului (Verilog-A). Rezultatele la care am ajuns în...

Abstract The thermo-mechanical reliability of IMCs (Ni 3 Sn 4 , Cu Sn, 6 5 ) solder joints and Sn-3.9Ag-0.6Cu was investigated systematically in 3D chip stacking structure subjected to an accelerated thermal cyclic loading based on finite element simulation Taguchi method. Effects different control factors, including high temperature, low dwell time loading, the stress-strain response fatigue l...

The electrical resistivity of high purity Cu has been investigated by both experiments and first principle calculations at pressures up to 5 GPa and at temperatures in the liquid phase up to 1730 K. The resistivity decreases with P and increases with T and our data are in very good agreement in relation to 1 atm data. Our melting temperature data agree with other experimental studies. We show t...

Tumor hypoxia indicates a poor prognosis. This study was undertaken to confirm our prior pilot results showing that pretreatment tumor hypoxia demonstrated by PET with (60)Cu-labeled diacetyl-bis(N(4)-methylthiosemicarbazone) ((60)Cu-ATSM) is a biomarker of poor prognosis in patients with cervical cancer. Thirty-eight women with biopsy-proved cervical cancer underwent (60)Cu-ATSM PET before the...

In this longitudinal study, the authors addressed intracultural variation on fathers’ interactions with their 3-month-old infants, their ideas about parental care, and the timing of their children’s self-recognition at the age of 18–20 months. Participants were 24 middle-class German fathers and their firstborn children. Two behavioral clusters emerged: a more proximal parenting style with exte...

The kinetics of the Cu3Ge phase formation during reactions between 600 nm polycrystalline Cu ~poly-Cu! and 600 nm amorphous Ge ~a-Ge! layers on Si ~100! substrates have been studied as a function of annealing conditions. Monoclinic Cu3Ge nucleated rapidly, resulting in smooth Cu3Ge layers. The room-temperature resistivity of the Cu3Ge was ;8 mV cm ~;4.5 times that of pure Cu!. The real-time res...

The oxygen deecient CuO x planes of the high-T c superconductors REBa 2 Cu 3 O 6+x (RE denotes a rare-earth atom or yttrium) are studied. Starting from the Emery model for the Cu-O chain fragments, an extended ASYNNNI model is proposed to describe the statistical mechanics of the CuO x planes. The model is analysed by using Monte Carlo techniques, computing especially the charge transfer to the...

Relaxometric studies are still of scientific interest due to their use in medicine and biology. In this study, proton T(1) and T(2) relaxivities of Mn(II), Cu(II) and Cr(III) in water were determined in the presence and absence of various proteins (albumin, alpha-globulin, gamma-globulin, lysozyme, fibrinogen). The 1/T(1) and 1/T(2) in all solutions are linearly proportional to the concentratio...

Effects of cadmium (10 nM), copper (80 nM) and zinc (150 nM) additions were studied in the marine diatom Ditylum brightwellii and the riverine diatom Thalassiosira pseudonana. Defense against oxidative stress via cellular thiol (SH) pools and superoxide dismutase (SOD) activation, detoxification via phytochelatins and cell damage were monitored in metal-exposed exponential-phase cells and contr...

The Lechang lead/zinc (Pb/Zn) mine and Dabao Shan copper (Cu) mine are located at the north of Guangdong Province in southern China. The residual tailings were permanently stored in tailings ponds which required revegetation to reduce their impact on the environment. A greenhouse study was conducted to evaluate the feasibility of using Vetiveria zizanioides (vetiver) and Phragmities australis (...