壓模製程參數對色度集中度的影響

Effect of the process parameters on chromaticity of molding LED

林忠毅(Chung-Yi Lin)

指導教授 ： 陳文瑞

國立虎尾科技大學/電機資訊學院/光電工程系光電與材料科技碩士班/碩士(2017年)

摘要

隨著LED製程日趨成熟，在成本COST DOWN及競爭考量下;持續針對封裝成品尺寸和晶粒縮小改良，且在不影響客戶所需成品亮度及色度座標規格下;各製程参數優化更顯重要。
在高附加價值的產品持續導入量產下，為避免因整體良率損耗造成成本上揚以及毛利率無法提升;本研究特別針對LED製程色度座標之集中度加以優化，使用方法晶粒亮度對切搭配不同波段之晶片與相對應之螢光膠錠做壓合成型，以及不同粒徑螢光粉末對色度座標集中度之影響;由實驗評估佐證可提升良率20~30%不等，在成本競爭的環境中若能持續將良率提升，對於整體製造成本以及生產效率將大幅提升;公司將更有優勢。
本文針對66系列之白光產品進行試驗，研究運用其它的條件及方式提升色度座標之集中度，並建立一套白光壓模製程於未來色度座標集中度不佳的解決方式，及早瞭解客戶所需之色度規格限制；避免未篩選來料本身晶粒波段與其對應之螢光粉末粗細而造成的良率損耗。本文以實際物料搭配組合來佐證實驗之有效性。

關鍵字

LED封裝 ； 晶粒對切 ； 螢光粉粒徑

並列摘要

With the LED manufacturing process has becoming mature day after day, under the consideration of cost down and competition, continuous targeting the improvement of packaged finished product dimension and grain shrinking, and without affecting the specification of finished product brightness and chromaticity coordinate, it is more important to optimize the parameters of each manufacturing process.
Under continuous mass production input of high value-added products, in order to avoid the rising cost caused by overall yield loss and that the gross profit margin cannot be improved, this study specially aims at optimizing the concentration ratio of chromaticity coordinate of LED manufacturing process, apply methods for grain brightness split and match with the wafer of different wave bands and corresponding fluorescent glue ingot for pressing molding, and according to the impact of fluorescent dusts of different particle diameters on chromaticity coordinate concentration ratio, the evidence of experimental evaluation can improve the yield by about 20~30%; in the environment of cost competition, if the yield can be improved continuously, it will sharply improve the overall manufacturing cost and production efficiency, and the company will have more advantages.
This paper carries out test on 66 series of white light products, studying on the utilization of other conditions and methods to improve the concentration ratio of chromaticity coordinate, and establishes a set of white light molding manufacturing process as the solution to poor chromaticity coordinate concentration ratio in the future, and to early understand the colorimetric specification limits required by the customer; so as to avoid the yield loss caused by the failure to screen the wave bands of incoming grains and the sizes of their corresponding fluorescent dusts. This paper will prove the effectiveness of experiment with actual materials combinations.

並列關鍵字

Grain to cut ； phosphor particle size

參考文獻

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