Solder Bond Fatigue is Insensitive to Module Size

Nowadays, software developers are facing challenges in minimizing the number of defects during the software development. Using defect density parameter, developers can identify the possibilities of improvements in the product. Since the total number of defects depends on module size, so there is need to calculate the optimal size of the module to minimize the defect density. In this paper, an improved model has been formulated that indicates the relationship between defect density and variable size of modules. This relationship could be used for optimization of overall defect density using an effective distribution of modules sizes. Three available data sets related to concern aspect have been examined with the proposed model by taking the distinct values of variables and parameter by putting some constraint on parameters. Curve fitting method has been used to obtain the size of module with minimum defect density. Goodness of fit measures has been performed to validate the proposed model for data sets. The defect density can be optimized by effective distribution of size of modules. The larger modules can be broken into smaller modules and smaller modules can be merged to minimize the overall defect density.

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Recent advances in solder bond technology for microelectronic packaging

Thin Solid Films ◽

10.1016/0040-6090(80)90527-1 ◽

1980 ◽

Vol 72 (3) ◽

pp. 433-442 ◽

Cited By ~ 7

Author(s):

P.M. Hall ◽

J.M. Morabito

Keyword(s):

Microelectronic Packaging ◽

Recent Advances ◽

Solder Bond

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Pengaruh Modul Besaran Ruang Terhadap Tata Ruang Rumah Sangat Sederhana

NALARs ◽

10.24853/nalars.17.2.135-144 ◽

2018 ◽

Vol 17 (2) ◽

pp. 135

Author(s):

Lily Mauliani

Keyword(s):

Air Conditioning ◽

Residential Building ◽

Spatial Layout ◽

Level System ◽

Natural Lighting ◽

Spatial Design ◽

Module Size ◽

Space Layout ◽

Home Space ◽

Descriptive Method

ABSTRAK. Bangunan rumah sangat sederhana pada permukiman padat penduduk pada umumnya merupakan bangunan yang tidak memenuhi syarat kelayakan sebuah hunian, Ketidaklayakan bangunan rumah tidak saja dari segi luasan masing-masing ruang di dalamnya tetapi juga dari segi kenyamanan ruang yang mencakup pencahayaan, penghawaan serta penataan perabot di dalam ruang. Metode penelitian yang digunakan untuk mengetahui korelasi antara besaran ruang dan tata ruang rumah sangat sederhana ini adalah metode deskriptif, berdasarkan fenomena yang terjadi di lapangan. Modul besaran ruang rumah sangat sederhana yang relatif sangat kecil menuntut adanya penyelesaian pada disain tata ruangnya. Dengan modul besaran ruang rumah sangat sederhana sebesar 3 x 3 m2 pemecahan masalah yang dapat dilakukan adalah dengan menata ruang dengan sistem split level. Dengan sistem tersebut memungkinkan terjadinya pemisahan ruang privat berdasarkan jenis kelamin serta pengoptimalan pencahayaan dan penghawaan alami. Kata Kunci: modul, besaran ruang, tata ruang ABSTRACT. A simple residential building in densely populated settlements, generally, is a building that does not meet the requirement of a dwelling, not laying the house not only in terms of the area of each space in it but also in terms of comfort space that includes lighting, air conditioning and the arrangement of furniture within a room. The research method that has been used to find out the correlation between space and spatial layout of this simple house is a descriptive method, based on phenomena that occurred in the field. Module size of the house space is very simple which is relatively minimal demands the completion of its spatial design. With the module size of a very simple home space 3 x 3 m2 problem solving can be done to arrange space with a split-level system. With such an arrangement allows the separation of private areas by sex and optimization of natural lighting and air conditioning.Keywords: module, dimension of space, layout

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Early Molecular Evolution

Israel Journal of Ecology and Evolution ◽

10.1560/ijee_52_3-4_375 ◽

2006 ◽

Vol 52 (3-4) ◽

pp. 375-387 ◽

Cited By ~ 8

Author(s):

Edward N. Trifonov

Keyword(s):

Molecular Evolution ◽

Protein Sequence ◽

Last Common Ancestor ◽

Sequence Motifs ◽

Molecular Events ◽

Function Modules ◽

Recent Developments ◽

Module Size ◽

Protein Sequence Motifs ◽

Polypeptide Chains

Four fundamentally novel, recent developments make a basis for the Theory of Early Molecular Evolution. The theory outlines the molecular events from the onset of the triplet code to the formation of the earliest sequence/structure/function modules of proteins. These developments are: (1) Reconstruction of the evolutionary chart of codons; (2) Discovery of omnipresent protein sequence motifs, apparently conserved since the last common ancestor; (3) Discovery of closed loops—standard structural modules of modern proteins; (4) Construction of protein sequence space of module size fragments, with far-reaching evolutionary implications. The theory generates numerous predictions, confirmed by massive nucleotide and protein sequence analyses, such as existence of two distinct classes of amino acids, and their periodical distribution along the sequences. The emerging picture of the earliest molecular evolutionary events is outlined: consecutive engagement of codons, formation of the earliest short peptides, and growth of the polypeptide chains to the size of loop closure, 25-30 residues.

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