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A Model of Capacity Deployment Timing for Advanced Processes of Semiconductor Manufacturing
No full text高科技產業的技術測試與產品需求有很高的不確定性，而先進製程技術更迭迅速、建廠的前置時間長，使得製程測試壓力很大，此外產能的投資成本往往很高，更加深了企業在規劃先進製程技術產能投資的困難度，產能建置過早會造成設備閒置，建置太晚則會喪失商機，所以產能建置時點是高科技製造企業的重要決策。
本文的主要目的是探討半導體先進製程產能的建置規劃方法，本文首先建構包含良率改善的隨機模型在內的系統動態模型，其次，依據系統動態關係，建立一個設備閒置與商機損失的經濟分析模式，最後，產能就緒的最佳時點經由數學優化產生並以投資績效指標，提出一個產能擴充的應有態度。
本研究的主要貢獻為成孕H良率改善的隨機模型計算測試期時間長度的機率分佈，提供企業明確的先進製程產能投資時點的決策方法，並結合產能擴充計劃與投資績效指標，客觀地提出產能擴充的合理態度。未來的高科技產業將會有很多的不確定性，本文提出的方法將有助於分析風險與制訂對策。Technology development and product demand in high-tech industries are full of uncertainties. Since building a factory requires long lead-time and manufacturing capacity incurs high cost, capacity deployment timing is an important decision in the uncertain environment of technology development and the volatile market.
The objective of this paper is to propose a method of capacity deployment timing for advanced process technology of semiconductor manufacturing in order to decrease the capacity idle costs and the losing business chance costs. A dynamic system model based on a stochastic model of yield improvement is first presented. And then, establish an economic analysis model considering over-capacity and under-capacity costs. Finally, illustrations are given to show how to optimize capacity deployment timing with this model.
The contribution of this paper is to offer successfully the distribution of time length of development, present the method of capacity deployment timing decision, and verify its optimization. Besides, the editor also presents a proper attitude to capacity increment when the demand condition is uncertain. Because of the high uncertainties that high-tech industry will face in the future, the research results will help those firms in that industry to make better risk and strategy analyses.中文摘要 I
Abstract II
目 錄 III
圖 目 錄 V
表 目 錄 VII
第1章 緒論 1
1.1 研究背景與動機 2
1.1.1 先進製程產能規劃的不確定性 4
1.1.2 最小之產能利用率限制 6
1.2 研究目的 6
1.3 研究方法與步驟 7
1.4 論文組織與架構 8
第2章 文獻回顧 9
2.1 需求生命週期 9
2.2 學習曲線 10
2.3 製程良率發展 14
2.4 良率的時間函數 16
2.5 良率與需求的相依關係 20
2.6 價格趨勢模型 21
2.7 單位產能的投資成本 24
2.8 商機損失的成本 25
2.9 不確定性下的產能投資策略 27
2.10 固定資產的折舊方式 28
第3章 產能供應與需求的動態模型 32
3.1 產能需求之動態關係 32
3.2 產能決策模式 39
3.3 良率分佈的合理區間 41
3.4 在時間t時的良率機率分佈 46
3.5 測試期之期間分佈 (T1) 51
3.6 先進製程之產能決策分析 59
第4章 產能擴充計劃與績效指標 69
4.1 最小之產能利用率 69
4.2 資產報酬率（ROA）模型概念 71
4.3 產能擴充態度 76
第5章 總結 79
5.1 結論 79
5.2 未來研究方向 80
參考文獻 81
附錄一 良率改善的時間長度 83
附錄二 不同製程技術之需求與良率關係圖 84
附錄三 目標函數Z(tc)兩次微分證明式 8
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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