KSIĄŻKI POWIĄZANE ZE SŁOWEM «UB M»
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1
An Experimental Study of Electromigration in Flip Chip Packages
3.3.1 Effect of UBM Composition Earlier works have shown that the diffusivity of Nickel (Ni) is slower than that of Copper (Cu) in Pb or Sn. The rate of IMC formation in Ni is lower than Cu. It was found that noble and near-noble metals are fast ...
2
Solder Joint Technology: Materials, Properties, and Reliability
If Cu is part of the UBM, the thickness of the Cu can affect current crowding greatly. For a thick Cu UBM of 5 μm in the composite solder joint, as discussed in Section 9.5, the highest current density due to current crowding will occur within the ...
3
Vacuum and Hermetic Packaging of MEMS Using Solder - Strona 42
Nickel as the UBM barrier layer A standard UBM in typical solder reflow experiments uses gold as the solderable layer, nickel as the barrier layer, and titanium or chromium as an optional adhesion layer [31]. This UBM was investigated as a ...
Warren Cornelius Welch (III.), 2008
4
Pattern Recognition and Machine Intelligence: Third International ...
(M)aximization Step : Hyperparameters are updated as follows: ak = 0.0 + Nk, /3' + 30 + Nk, In k = +(m. Nix. ... 2.2 Universal Background Model (UBM) In the VB-GMM-UBM system, the first step is to generate the UBM 24. The UBM is a single ...
Santanu Chaudhury, Sushmita Mitra, C.A. Murthy, 2009
5
Flip Chip Back End Design Parameters to Reduce Bump Electromigration
The effect of Al trace thickness, UBM thickness, UBM diameter and PO diameter on current density in Al trace and the bump is studied. Maximum current crowding is always observed in the metallization. In the metallization, the most important ...
6
Uveitis: An Update - Strona 68
Ultrasound. Biomicroscopy. (UBM). UBM is noncontact, noninvasive imaging modality that provides high-resolution, cross-sectional biomicroscopic images of the anterior structures of the eye. It uses ultrasound of high frequency ...
Jyotirmay Biswas, Parthopratim Dutta Majumder, 2015
7
New Investigations in Ophthalmology - Strona 207
The angle width estimated by gonioscopy correlated significantly with the angle dimensions measured by UBM. But UBM measurements are definitely more reproducible. Spaeth GL et al.75 studied inter and intraobserver variability in reading ...
8
Bayesian Speech and Language Processing - Strona 172
The GMM of H1 is called the universal background model (UBM), and UBM denotes its GMM parameters. ... p(O|UBM) = T∏ t=1 K∑ k=1 ωUBMkN(ot|μUBMk,UBMk), (4.130) where UBM speakers to train are computed from many training data ...
Shinji Watanabe, Jen-Tzung Chien, 2015
9
Statistical Language and Speech Processing: Third International ...
UBM (L1) Gaussian N Gaussians selection Target language data Gaussian selection N Gaussians Weight normalization + merging Final UBM (L1-L2) UBM (L2) N Gaussians L1+(1-) L2 (1- )N Gaussians number of Gaussians to be kept for ...
Adrian-Horia Dediu, Carlos Martín-Vide, Klára Vicsi, 2015
10
Forever: (A Novella) (Angels Among Us, Book 3)
HarperImpulse Paranormal Romance Novella FOREVER Ceri is alone for a reason. She’s not meant to fall in love. She’s here for one purpose only.
