Productivity improvement through cycle time analysis

Javier Bonal; Luis Rios; Carlos Ortega; Santiago Aparicio; Manuel Fernandez; Maria Rosendo; Alejandro Sanchez; Sergio Malvar

doi:10.1117/12.250914

13 September 1996 Productivity improvement through cycle time analysis

Javier Bonal, Luis Rios, Carlos Ortega, Santiago Aparicio, Manuel Fernandez, Maria Rosendo, Alejandro Sanchez, Sergio Malvar

Author Affiliations +

Proceedings Volume 2876, Process, Equipment, and Materials Control in Integrated Circuit Manufacturing II; (1996) https://doi.org/10.1117/12.250914
Event: Microelectronic Manufacturing 1996, 1996, Austin, TX, United States

Abstract

A cycle time (CT) reduction methodology has been developed in the Lucent Technology facility (former AT&T) in Madrid, Spain. It is based on a comparison of the contribution of each process step in each technology with a target generated by a cycle time model. These targeted cycle times are obtained using capacity data of the machines processing those steps, queuing theory and theory of constrains (TOC) principles (buffers to protect bottleneck and low cycle time/inventory everywhere else). Overall efficiency equipment (OEE) like analysis is done in the machine groups with major differences between their target cycle time and real values. Comparisons between the current value of the parameters that command their capacity (process times, availability, idles, reworks, etc.) and the engineering standards are done to detect the cause of exceeding their contribution to the cycle time. Several friendly and graphical tools have been developed to track and analyze those capacity parameters. Specially important have showed to be two tools: ASAP (analysis of scheduling, arrivals and performance) and performer which analyzes interrelation problems among machines procedures and direct labor. The performer is designed for a detailed and daily analysis of an isolate machine. The extensive use of this tool by the whole labor force has demonstrated impressive results in the elimination of multiple small inefficiencies with a direct positive implications on OEE. As for ASAP, it shows the lot in process/queue for different machines at the same time. ASAP is a powerful tool to analyze the product flow management and the assigned capacity for interdependent operations like the cleaning and the oxidation/diffusion. Additional tools have been developed to track, analyze and improve the process times and the availability.

Citation Download Citation

Javier Bonal, Luis Rios, Carlos Ortega, Santiago Aparicio, Manuel Fernandez, Maria Rosendo, Alejandro Sanchez, and Sergio Malvar "Productivity improvement through cycle time analysis", Proc. SPIE 2876, Process, Equipment, and Materials Control in Integrated Circuit Manufacturing II, (13 September 1996); https://doi.org/10.1117/12.250914

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available