Recycling and Refurbishing of Epoxy Packaging Mold Ports and Plungers
Recycling and Refurbishing of Epoxy Packaging Mold Ports and Plungers
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环氧树脂包装模具端口和柱塞的回收和翻新
DOI：
10.3390/inventions1020011
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Cheng
中科院分区：
文献类型：
--
作者：
Wanjie Huang;Chao;Cheng
在集成电路（IC）封装过程中，封装材料和模具清洗饼中的酸性或碱性化学成分是导致模具端口和柱塞腐蚀的主要原因。为了延长这些部件的使用寿命，本研究集中研究了三个方面的问题：首先，在柱塞和端口回收和清洗后，应用特殊的真空涂层来抵消腐蚀和减少磨损。该涂层耐酸碱，硬度高达HV4000。这使得它既耐磨损又延长了使用寿命。无卤素包装材料现已引进生产绿色电气会员公司（EMC）。然而，这种材料比旧的、更污染的塑料饼更粘稠，这缩短了模具清洗之间的时间，随后也减少了生产时间。此外，柱塞的大部分磨损发生在尖端3毫米以内。我们已经为这部分开发了一种银焊技术，并为柱塞主体使用了几种材料。该过程包括切断尖端和焊接在复合材料上，我们使用DC53 + F10钢。这些技术允许包装模具的柱塞和端口的回收和翻新，以延长其使用寿命到相当大的程度。以Advanced Semiconductor Engineering Inc.为例，如果每个工厂每月使用1000台，那么12个工厂每年将使用14.4万台。每台可节省约台币一千六百元。这节省了模具端口和柱塞一半的开支。
During the integrated circuit (IC) packaging process, acid or alkaline chemical ingredients in the packaging material and in the mold cleaning cake are the major contributor to the corrosion of mold ports and plungers. To prolong the service life of these parts, this study concentrates of three aspects of the problem: First, after recycling and cleaning the plungers and ports, a special vacuum coating is applied to counteract corrosion and reduce abrasion. This coating is resistant to acid and alkali and has a hardness of up to HV4000. This makes it both resistant to abrasion and prolongs working life. Halogen-free packaging material has now been introduced to produce Green Electric Membership Corporations (EMC). However, this material is more viscous than the older, more polluting, plastic cake and this shortens the time between mold cleaning and subsequently reduces time for production as well. Also, most abrasion of the plunger occurs within 3 mm of the tip. We have developed a silver welding technique for this portion and a process in which several materials are used for the main body of the plunger. The procedure involves cutting off the tip and welding on a compound material, we have used DC53 + F10 Steel. These techniques allow recycling and refurbishment of the plungers and ports of packaging molds to prolong their service life to a considerable degree. Take Advanced Semiconductor Engineering Inc. as an example, if each plant uses 1000 sets a month, 12 plants will use 144 thousand sets every year. The saving on each set is about NT$1600. This represents a saving of half the expenditure on mold ports and plungers.