✦ LIBER ✦

Run-to-run control charts with contrasts

✍ Scribed by George C. Runger; John W. Fowler

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 258 KB
Volume: 14
Category: Article
ISSN: 0748-8017
DOI: 10.1002/(sici)1099-1638(199807/08)14:4<261::aid-qre192>3.0.co;2-r

No coin nor oath required. For personal study only.

✦ Synopsis

In semiconductor manufacturing it is useful to design control charts to be sensitive to anticipated assignable causes. Process knowledge can be used to develop summaries for run-to-run control that are more sensitive to problems than traditional approaches. As the number of measurements recorded from a run increases, appropriate summaries derived from process knowledge become more important. Control charts based on linear contrasts are generated from partitions of a standard analysis of variance model. These contrasts simplify the development and interpretation of charts sensitized for specific assignable causes. The use of EWMA control charts for these statistics is described.

📜 SIMILAR VOLUMES

Run-to-run control of membrane filtratio

Run-to-run control of membrane filtration processes

✍ Jan Busch; Andreas Cruse; Wolfgang Marquardt 📂 Article 📅 2007 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 451 KB

## Abstract Membrane filtration processes are often operated cyclically, where one cycle comprises a filtration and a backwashing phase. Due to the complex mechanisms involved, these processes are mostly operated with fixed values of the manipulated variables, leaving much of the economical potenti

Run-to-run process control of a plasma e

Run-to-run process control of a plasma etch process with neural network modelling

✍ Jill P. Card; Mark Naimo; William Ziminsky 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 250 KB 👁 2 views

Run-to-run control of a plasma etch process for 8 inch diameter silicon wafers at Digital Semiconductor is determined by maintenance of targeted values of post-etch metrology variables. The post-etch quality variables are extremely sensitive to variation in the etch chamber conditions due to fluctua

Mistakes to Run With: a Life Outside the

Mistakes to Run With: a Life Outside the Lines

✍ Yasuko Thanh 📂 Fiction 📅 2019 🏛 Penguin Canada 🌐 en-US ⚖ 158 KB 👁 2 views

****A NATIONAL BESTSELLER** A devastatingly frank memoir that tears open the past to examine how circumstances--and the choices we make--dictate the people we become, for fans of _Educated_ and _The Glass Castle_.** _Mistakes to Run With_ chronicles the turbulent life of Yasuko Thanh, from early

Hierarchical Production Control in a Sto

Hierarchical Production Control in a Stochastic Manufacturing System with Long-Run Average Cost

✍ Suresh P Sethi; Hanqin Zhang; Qing Zhang 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 275 KB

This paper presents an asymptotic analysis of a stochastic manufacturing system consisting of parallel machines subject to breakdown and repair and facing a constant demand, as the rates of change of the machine states approach infinity. This situation gives rise to a limiting problem in which the s

Hierarchical Production Control in a Sto

Hierarchical Production Control in a Stochastic N-Machine Flowshop with Long-Run Average Cost

✍ Suresh P. Sethi; Hanqin Zhang; Qing Zhang 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 176 KB

This paper presents an asymptotic analysis of stochastic manufacturing systems consisting of machines in tandem subject to breakdown and repair and facing a constant demand, as the rates of change of the machine states approach infinity. This situation gives rise to a limiting problem in which the s

An efficient control over human running

An efficient control over human running animation with extension of planar hopper model

✍ Kang, Young-Min ;Cho, Hwan-Gue ;Lee, Ee-Taek 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 462 KB

The most important goal of character animation is to efficiently control the motions of a character. Until now, many techniques have been proposed for human gait animation. Some techniques have been created to control the emotions in gaits such as 'tired walking' and 'brisk walking' by using paramet