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Validation of improvement in changeover of die bond processusing basicmost technique |
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| รหัสดีโอไอ | |
| Creator | 1. Puvanasvaran A. Perumal 2. Karmegam Karuppiah 3. Lim Eu Sheng |
| Title | Validation of improvement in changeover of die bond processusing basicmost technique |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2564 |
| Journal Title | Songklanakarin Journal of Science an Technology (SJST) |
| Journal Vol. | 43 |
| Journal No. | 5 |
| Page no. | 1299-1304 |
| Keyword | standard time, work Measurements, Maynard's operation sequence technique (MOST), BasicMOST, stopwatch time Study |
| URL Website | https://rdo.psu.ac.th/sjst/index.php |
| ISSN | 0125-3395 |
| Abstract | According to the lean manufacturing philosophy, productivity can be boosted via work and time measurementtechniques by establishing suitable standard time and work methods. Standard is a level or grade that can be used as a measurefor comparative evaluation as a benchmark. It is developed and documented for many evaluations. For the case study, a standardtime was developed for the changeover process in die bond, which is a process in the semiconductor company. The standardtime was developed for the new improved work elements of changeover process in the company. The work elements in thechangeover process were first identified and established. Normal time, a value needed to calculate standard time was obtained bytwo work measurements namely stopwatch time study and BasicMOST. The non-value-added activities and their respective timein the changeover was identified via the synergy of data from both work measurements with the integration of both quantitative,comparison of normal time and qualitative analysis. In a flow process chart 7 out of 18 work elements were classified as transportactivity, which was taken as non-value-added activity, and these took up 39 percent of the changeover time. A total of 7.56seconds was then excluded from the standard time. The standard time was calculated to be 22.91 minutes using BasicMOST.Since there was only a minor difference in times, less than 27.84 seconds from BasicMOST, the standard time was based onBasicMOST, and the improved work procedures have been validated as effective. |
