Modeling on the Ground Wafer Shape in Wafer Rotational Grinding

During the silicon wafer grinding, the different process parameters could cause the silicon wafer shape greatly different. Based on the rotational coordinate principle of kinematics, a theoretical model of the ground wafer shape in rotational grinding process is developed, in which many critical factors are considered in this paper. These factors mainly include the parameters of the dressing vacuum chuck and wafer grinding etc. And the mathematical equation of the ground wafer shape is derived. Moreover, as one of the important indexes, TTV(total thickness variation) is researched and analyzed. The equation of TTV is given. The built model can offer a theoretical foundation for further experimental researching. The research results are significant to effectively control the ground wafer shape in a certain.This paper applied the Autonomous Intelligent System(AIS) to deal with the intelligent activities intelligently and automatically, and thereof provided a new method for the Supply Chain Management(SCM) on MC manufacture. First, a new supply chain model based on E-HUB was presented according to the requirements of MC manufacture, and then the structure and operation of AIS were designed to support that SCM. Finally, the development technology of AIS was discussed.

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Autonomous Intelligent System for Supply Chain Management on Mass Customization Manufacture

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.26-28.686 ◽

2010 ◽

Vol 26-28 ◽

pp. 686-689

Author(s):

Wei Hui Dai

Keyword(s):

Supply Chain ◽

Supply Chain Management ◽

Mass Customization ◽

Intelligent System ◽

Global Market ◽

Chain Model ◽

Chain Management ◽

Supply Chain Model ◽

Development Technology ◽

Individual Demand

Due to the intensely increasing competition and rapidly changing demand, Mass Customization(MC) manufacture has been the new trend for modern enterprises to respond quickly to the variational and individual demand in global market. To satisfy the operation of MC manufacture, its supply chain must be effective and flexible enough. Findings of researches and practices have shown that some intelligent activities, such as negotiation, decision and collaboration, have become the “bottleneck” to improve the performance of supply chain. This paper applied the Autonomous Intelligent System(AIS) to deal with the intelligent activities intelligently and automatically, and thereof provided a new method for the Supply Chain Management(SCM) on MC manufacture. First, a new supply chain model based on E-HUB was presented according to the requirements of MC manufacture, and then the structure and operation of AIS were designed to support that SCM. Finally, the development technology of AIS was discussed.

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Customer Oriented Product Design by Adaptive Clustering Analysis

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.26-28.690 ◽

2010 ◽

Vol 26-28 ◽

pp. 690-693 ◽

Cited By ~ 2

Author(s):

Wei Hui Dai

Keyword(s):

Supply Chain ◽

Product Design ◽

Clustering Analysis ◽

Recommendation System ◽

Intelligent System ◽

New Method ◽

Chain Model ◽

Adaptive Clustering ◽

Development Technology ◽

The Face

In the face of increasing competition and diversified demand, product design must be customer oriented for modern enterprises to satisfy the variationally personalized requirements. Thereof; the exact orientation and comprehensive analysis of target customers have been the key to conduct customer oriented product design. This paper presented a new method for the orientation and analysis of target customers by adaptive clustering analysis. By this method, the distribution of customer clusters and the related characteristics of each custer as well as its included customers can be extracted dynamically and adaptively. Applied by this method, the adaptive recommendation system was illustrated for the design of LCD-TV.This paper applied the Autonomous Intelligent System(AIS) to deal with the intelligent activities intelligently and automatically, and thereof provided a new method for the Supply Chain Management(SCM) on MC manufacture. First, a new supply chain model based on E-HUB was presented according to the requirements of MC manufacture, and then the structure and operation of AIS were designed to support that SCM. Finally, the development technology of AIS was discussed.

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Effect of Double Sided Process Parameters in Lapping Silicon Wafer

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.393.259 ◽

2013 ◽

Vol 393 ◽

pp. 259-265 ◽

Cited By ~ 3

Author(s):

Abdul Rahim Mahamad Sahab ◽

Nor Hayati Saad ◽

Amirul Abdul Rashid ◽

Yusoff Noriah ◽

Nassya Mohd Said ◽

...

Keyword(s):

Silicon Wafer ◽

Process Parameters ◽

Integrated Circuit ◽

Quality Standard ◽

Wafer Surface ◽

Thickness Variation ◽

Total Thickness ◽

Hard And Brittle Material ◽

Total Thickness Variation ◽

Lapping Machine

Silicon wafer is widely used in semiconductor industries for development of sensors and integrated circuit in computer, cell phones and wide variety of other devices. Demand on the device performance requires flatter wafer surface, and less dimensional wafer variation. Prime silicon wafer is hard and brittle material. Due to its properties, double sided lapping machine with ceramic grinding agent were introduced for machining high quality standard silicon wafers. The main focus is the silicon wafer with high accuracy of flatness; to reduce total thickness variation, waviness and roughness. In this paper the lapping experiment and analysis showed that the double sided lapping machine is able to produce total thickness variation less than 10 um at controlled process parameters within short processing time. Machining using low mode method reduced the total thickness variation (TTV) value. The lapping load and speed directly reflected the performance and condition of final silicon wafer quality.

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Optimised immunisation supply chain model saves costs in the DRC

PharmacoEconomics & Outcomes News ◽

10.1007/s40274-021-7855-0 ◽

2021 ◽

Vol 882 (1) ◽

pp. 21-21

Keyword(s):

Supply Chain ◽

Chain Model ◽

Supply Chain Model

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Multi-echelon Supply Chain Model for Deteriorating Products in a Fuzzy Deterioration Environment

Fuzzy Information and Engineering ◽

10.1080/16168658.2021.1886814 ◽

2019 ◽

Vol 11 (1) ◽

pp. 86-104

Author(s):

S. Priyan ◽

P. Mala

Keyword(s):

Supply Chain ◽

Chain Model ◽

Supply Chain Model

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Two-echelon imperfect production fuzzy supply chain model for reliability dependent demand with probabilistic deterioration and rework

Journal of Intelligent & Fuzzy Systems ◽

10.3233/jifs-200562 ◽

2021 ◽

pp. 1-15

Author(s):

Sudip Adak ◽

G.S. Mahapatra

Keyword(s):

Supply Chain ◽

Production Rate ◽

Production Cost ◽

Idle Time ◽

Chain Model ◽

Specific Time ◽

Defective Items ◽

Imperfect Production ◽

Supply Chain Model ◽

Dependent Demand

This paper develops a fuzzy two-layer supply chain for manufacturer and retailer with defective and non-defective types of products. The manufacturer produces up to a specific time, including faulty and non-defective items, and after the screening, the non-defective item sends to the retailer. The retailer’s strategy is to do the screening of items received from the manufacturer; subsequently, the perfect quality items are used to fulfill the customer’s demand, and the defective items are reworked. The retailer considers that customer demand is time and reliability dependent. The supply chain considers probabilistic deterioration for the manufacturer and retailers along with the strategies such as production rate, unit production cost, cost of idle time of manufacturer, screening, rework, etc. The optimum average profit of the integrated model is evaluated for both the cases crisp and fuzzy environments. Managerial insights and the effect of changes in the parameters’ values on the optimal inventory policy under fuzziness are presented.

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The problems facing agricultural sector in Zanzibar and the prospects of Waqf-Muzar’ah-supply chain model

Humanomics ◽

10.1108/h-02-2017-0033 ◽

2017 ◽

Vol 33 (2) ◽

pp. 189-210 ◽

Cited By ~ 2

Author(s):

Issa Salim Moh’d ◽

Mustafa Omar Mohammed ◽

Buerhan Saiti

Keyword(s):

Supply Chain ◽

Interest Rates ◽

Financial Models ◽

Agricultural Sector ◽

Chain Model ◽

Content Type ◽

High Interest ◽

Supply Chain Model ◽

The Government ◽

Clove Industry

Purpose This paper aims to identify the appropriate model to address the financial challenges in agricultural sector in Zanzibar. Since the middle of 1960, clove production has continually and significantly decreased because of some problems and challenges that include financial ones. The financial intermediaries such as banks, cooperatives and micro-enterprises provide micro-financing to the farmers with high interest rates along with collateral requirements. The numerous programmes, measures and policies adopted by the relevant parties to find out the solutions to the dwindling clove production have failed. Design/methodology/approach The authors will review and examine several existing financial models, identify the issues and challenges of the current financial models and propose an appropriate Islamic financing model. Findings The numerous programmes, measures and policies adopted by the relevant parties to find out the solutions to the dwindling clove production have failed. This study, therefore, proposed a Waqf-Muzara’ah-supply chain model to address the financial challenge. Partnership arrangement is also suggested in the model to mitigate the issues of high interest rates and collateral that constrains the financial ability of the farmers and their agricultural output. Originality/value The contribution of the agricultural sector to the economic development of Zanzibar Islands is considerable. As one of the important agricultural sectors, the clove industry was the economic backbone of the government of Zanzibar. This study is believed to be a pioneering work; hence, it is the first study that investigates empirically the challenges facing the clove industry in Zanzibar.

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A Study on Leagile Supply Chain Model and Performance Evaluation System Based on Lean Agile Theory

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.635-637.1771 ◽

2014 ◽

Vol 635-637 ◽

pp. 1771-1775 ◽

Cited By ~ 3

Author(s):

Hui Min Jia ◽

Kai Chao Yu ◽

Jin Chang Zhang

Keyword(s):

Supply Chain ◽

Performance Evaluation ◽

Evaluation System ◽

Operating Mode ◽

Agile Manufacturing ◽

Chain Model ◽

Performance Evaluation System ◽

Supply Chain Model ◽

And Performance ◽

Lean Supply Chain

Leagile supply chain integrates lean supply chain and agile supply chain. In this paper, the theory of lean production and agile manufacturing are compared and analyzed, and then the leagile supply chain model and the performance evaluation system based on DEA are established. Based on the above, this paper provides an example of the evaluation system to verify the operability and effectiveness, which can provide the reference for enterprises to improve operating mode of the supply chain or develop a new leagile supply chain.

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