以精實改善生產流程-以S公司PCBA製程為例

Implementation of Lean Manufacturing on the Production Process—Taking S Company's PCBA Process as an Example

吳文賢(Wen-Hsien. Wu)

指導教授 ： 吳建瑋

國立清華大學/工學院/工業工程與工程管理學系碩士在職專班/碩士(2021年)

摘要

自第二次世界大戰後，豐田公司提出「精實生產」這種管理模式，並獲得了巨大的成功後，各企業都紛紛模仿，本研究希望能藉由導入「精實流程改善」提升S企業的競爭力，提出合理的改善方案，因要全面導入工程較浩大，故本次研究選擇案例，是先針對當前最具效益的「組裝電路板（Printed Cicrcuit Board Assembly，PCBA）」製程做為主軸，其主要原因為「PCBA」產品的半成品及原物料佔S公司主要庫存達八成以上，而此製程的生產週期（不含原物料的採購時間）就需一個月，故選擇此製程做為改善目標，對該公司有最大效益。
「PCBA」的生產雖是非常傳統的製程，但因應現在市場的趨勢為少量多樣的需求，各種電子零件的搭配生產參數的要求，在對應從零件採購、物料運送、物料點收、入料檢驗、庫房發料與「印刷電路板（Printed Cicrcuit Board，PCB）」的插件及組裝、裝箱、檢測等，所造成的困難及複雜程度可想而知，故此一製程導入精實生產後，用「價值溪流圖（Valuestream）」分析、檢討現有製程，綜觀整個生產鏈，提出優化流程及單元改善，再進行驗收及成效評估，如果能將製程時間縮短，那麼安全存量及在製品皆可降低，對該公司非常具有效益，故有較大的研究價值。

關鍵字

精實流程改善 ； 精實生產 ； 價值溪流 ； PCBA

並列摘要

Since World War II, Toyota proposed the "Lean Manufacturing" management model. After receiving great success, various companies have imitated it. This research hopes to improve the competitiveness of S company by introducing "Lean -manufacturing Improvement" and propose reasonable improvement plans. Because the comprehensive introduction of the project is relatively large, the selected cases in this research aimed at the most current needs of the company. By analyzing and reviewing the value stream map of the entire resent production process, propose optimized processes and unit improvements, and then conduct acceptance and effectiveness evaluation.
Therefore, the research focuses on the PCBA production of S company, since semi-finished products and raw materials of PCBA products account for more than 80% of the main inventory of S company, and the PCBA production cycle (excluding the purchase time of raw materials) takes one month. Consequently, choosing this process as the improvement goal will produce the greatest benefit to the company.
Although the production of PCBA is very traditional, the current market trends for diversified production in small quantities. The requirement of matching production parameters of various electronic parts creates great complexity for the production system, such as parts procurement, material transportation, material receipt, incoming inspection, warehouse distribution and printed circuit board plug-in and assembly, packing, final quality inspection, etc. Consequently, the introduction of lean production into this process is of great benefit to the company and has high research value.

並列關鍵字

Lean Process Improvement ； Lean Production ； Valuestream ； Printed Circuit Board Assembly

參考文獻

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