半導體封裝測試廠最佳產品組合探討-以記憶卡產品為例

A Study on the Optimal Product Mix for Semiconductor Assembly and Testing Plants – Using MicroSD Cards as an Example

李聖斌(SHENG-BIN LI)

指導教授 ： 陳明德

國立中正大學/管理學院/企業管理學系/碩士(2016年)

摘要

半導體封裝測試產業競爭激烈與市場需求變動快速，同時也是技術和勞力密集的產業，產品更是日新月異，生產機器設備費用昂貴和折舊快，在購置機器設備更須謹慎評估。臺灣封裝測試廠雖然有低生產成本、高生產技術和高效率等優勢，在全球半導體封裝測試產業佔有領先地位，除了有國際封裝測試廠的競爭外，近年在中國大陸政府的政策與資金挹注之下，中國大陸的半導體封裝測試廠急起直追，對臺灣封裝測試廠造成不小壓力；因此，如何降低生產成本以及有效提高生產力，才能在半導體封裝測試產業微利時代生存與永續發展。
本研究透過數學規劃(Mathematical Programming)，以生產機器設備的實際加工時間評估小型記憶卡(Micro-SD)封裝測試的生產線瓶頸站(Bottleneck)，有別於一般以理論值或經驗概算出的產能，能更真實的反應生產線實際生產與運作，並使用作業研究(Operations Research)LINGO線性規劃軟體評估生產線實際產能和瓶頸站，以及在有限的資本支出之下，如何分配生產線機器設備購置，以達到最佳化的規劃與配置，避免購置過多機器設備超過需求或不符合效益，造成產能閒置和成本增加，以供企業作為後續購置機器設備評估。
本研究著重於如何將有限的生產資源做最佳化的規劃與分配，藉由線性規劃(Linear Programming)工具運用於小型記憶卡封裝測試廠生產線之最佳產品組合(Product Mix)，作為產能分配規劃的最佳決策，以提高產業競爭力，達到利潤最大化的目標。

關鍵字

半導體封裝測試 ； 小型記憶卡 ； 線性規劃 ； 生產規劃 ； 產品組合

並列摘要

The semiconductor Assembly and testing industry is faced with intense competition and rapidly changing market demands. The industry is technology- and labor-intensive, which leads to short product lifecycles. Thus, companies in the industry are forced to constantly replace expensive machinery and equipment. Hence, a stringent evaluation process is required when purchasing machinery and equipment. Taiwan’s Assembly and testing plants are advantageous in that they are able to offer competitive production prices, provide excellent R&D technologies, and achieve superior efficiency. These qualities have secured Taiwan’s status in the global semiconductor Assembly and testing industry. Nevertheless, international competition remains an imminent threat to Taiwan’s industry, particularly China’s Assembly and testing plants, which have benefited from the recent amendments in policies and the increase in funds. To survive in an era of micro profits and achieve sustainable development, Taiwanese companies must strive to lower production costs and effectively increase productivity.

The present study employed mathematical programming and used the actual processing time required for the production equipment to assess the production line bottlenecks of micro secure digital (SD) memory card packing and testing. The output calculated via this method is superior to general theoretical values or that of experience-based calculations, and can reflect the operations of the production line with greater accuracy. LINGO, a software for operations research was employed, and linear programming was used to assess the actual output and bottlenecks of the production line. The software was also used to determine the optimal planning and distribution of production line machinery under limited capital expenditure. The results can serve as reference for companies when evaluating machinery or equipment purchases, thereby avoiding the over purchase of machinery that is not cost-effective, and preventing idle output and increased costs.

The present study was centered on optimizing the planning and distribution of finite production resources. A linear programming tool was applied to determining the optimal product mix for the production line of a micro SD memory card Assembly and testing company. The results of the present study can serve as reference for determining optimal policies for output distribution and planning, thereby elevating the competitiveness of the industry and effectively maximizing profits.

並列關鍵字

Semiconductor Assembly and Testing ； Micro Secure Digital (SD) Memory Card ； Linear Programming ； Production Planning ； Product Mix

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