CN110724604A - 一种水基环保中性清洗液 - Google Patents

一种水基环保中性清洗液 Download PDF

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CN110724604A
CN110724604A CN201910896782.4A CN201910896782A CN110724604A CN 110724604 A CN110724604 A CN 110724604A CN 201910896782 A CN201910896782 A CN 201910896782A CN 110724604 A CN110724604 A CN 110724604A
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刘江华
付元涛
章小琴
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Huapu Microelectronics Technology (ningbo) Co Ltd
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Abstract

一种水基环保中性清洗液,属于微电子材料用清洗液的技术领域,按重量百分比计,包括式I结构的烷基醇聚醚0.1‑25%、醇醚类溶剂0.1‑50%、醇类溶剂0.1‑25%,去离子水30‑99.7%,

Description

一种水基环保中性清洗液
技术领域
本发明涉及微电子材料用清洗液的技术领域,具体涉及一种水基环保中性清洗液,该清洗液适用于TFT-LCD、LED、OLED、先进封装和半导体晶圆等制造过程中基材设备表面的清洗。
背景技术
TFT-LCD、LED、OLED、先进封装和半导体晶圆等制造工艺主要是通过光刻工艺来实现的。在整个光刻工艺中,会大量使用到光刻胶及其配套的电子化学品,在整个工艺流程中会在设备基材表面产生大量的残留杂质,需要定期对设备基材的表面进行清洗。这些残留物如不能有效去除,就会对后续工序或产品的生产造成影响。有些设备特别是需要人工来清洗。市场上的一些强碱强酸类清洗液可以去除上述残留的杂质,此类型清洗液不但对设备基材存在严重腐蚀,对人体也会造成非常大的危害,影响人体健康。
发明内容
本发明的目的是提供一种水基环保中性清洗液,该清洗液能有效去除TFT-LCD、LED、OLED、先进封装和半导体晶圆等制造过程中基材设备表面残余物。该产品清洗效果好、润湿渗透性强、无毒无污染,可以直接人工手动擦洗。
本发明的中的水基环保中性清洗液组合物组成:a)烷基醇聚醚,b)醇醚类溶剂,c)醇类溶剂,d)高纯水。
本发明为实现其目的采用的技术方案是:
一种水基环保中性清洗液,按重量百分比计,包括式I结构的烷基醇聚醚0.1-25%(优选1-15%)、醇醚类溶剂0.1-50%(优选5-30%)、醇类溶剂0.1-25%(优选0.5-20%),去离子水30-99.7%(优选40-98%),
Figure BSA0000191220060000021
其中m,n均为1-50的整数。
所述的醇醚类溶剂为乙二醇醚和/或丙二醇醚。其中乙二醇醚较佳的为乙二醇单甲醚、乙二醇单乙醚、乙二醇单丙醚、乙二醇单丁醚、乙二醇二甲醚、乙二醇二乙醚、乙二醇二丙醚、乙二醇二丁醚、乙二醇甲乙醚、乙二醇甲丙醚、乙二醇甲丁醚、乙二醇乙丙醚、乙二醇乙丁醚、乙二醇丙丁醚、二乙二醇单甲醚、二乙二醇单乙醚、二乙二醇单丙醚、二乙二醇单丁醚、二乙二醇双甲醚、二乙二醇双乙醚、二乙二醇双丙醚、二乙二醇双丁醚、二乙二醇甲乙醚、二乙二醇甲丙醚、二乙二醇甲丁醚、二乙二醇乙丙醚、二乙二醇乙丁醚、二乙二醇丙丁醚、三乙二醇单甲醚、三乙二醇单乙醚、三乙二醇单丙醚、三乙二醇单丁醚、三乙二醇双甲醚、三乙二醇双乙醚、三乙二醇双丙醚、三乙二醇双丁醚、三乙二醇甲乙醚、三乙二醇甲丙醚、三乙二醇甲丁醚、三乙二醇乙丙醚、三乙二醇乙丁醚、三乙二醇丙丁醚、中的一种或几种;其中丙二醇醚较佳的为丙二醇单甲醚、丙二醇单乙醚、丙二醇单丙醚、丙二醇单丁醚、丙二醇二甲醚、丙二醇二乙醚、丙二醇二丙醚、丙二醇二丁醚、丙二醇甲乙醚、丙二醇甲丙醚、丙二醇甲丁醚、丙二醇乙丙醚、丙二醇乙丁醚、丙二醇丙丁醚、二丙二醇单甲醚、二丙二醇单乙醚、二丙二醇单丙醚、二丙二醇单丁醚、二丙二醇双甲醚、二丙二醇双乙醚、二丙二醇双丙醚、二丙二醇双丁醚、二丙二醇甲乙醚、二丙二醇甲丙醚、二丙二醇甲丁醚、二丙二醇乙丙醚、二丙二醇乙丁醚、二丙二醇丙丁醚、三丙二醇单甲醚、三丙二醇单乙醚、三丙二醇单丙醚、三丙二醇单丁醚中的一种或几种。
所述的去离子水为电阻值大于2MΩ/cm的去离子水。
本发明中的醇类溶剂较佳的为乙醇、丙醇、丁醇、戊醇、己醇、庚醇、辛醇、壬醇、癸醇、异丙醇、异丁醇、乙二醇、丙二醇、丙三醇、、季戊四醇、木糖醇、山梨糖醇、环戊醇、环己醇、苯甲醇、苯乙醇、苯丙醇中的一种或几种。
所述清洗液是将式I结构的烷基醇聚醚、醇醚类溶剂、醇类溶剂和去离子水依次加入搅拌溶解,控制溶解过程温度≤50℃,溶解完成后过0.2μm滤芯所得。
所述清洗液直接使用,或稀释2-100倍(优选5-50倍)使用。本发明的清洗液在使用过程中没有特殊限制,可以直接手动擦洗也可淋洗。
本发明的有益效果是:本发明的水基环保中性清洗液能有效去除TFT-LCD、LED、OLED、先进封装和半导体晶圆等制造过程中基材设备表面的油脂、光阻残余物、颗粒、手印、金属杂质等杂质。该产品清洗效果好、润湿渗透性强、无毒无污染,可以直接人工手动擦洗。
具体实施方式
下面通过具体实施例对本发明作进一步的说明,进一步阐述本发明的优点,但本发明的保护范围不仅仅局限于下述实施例。
一、具体实施例
实施例水基环保中性清洗液的组分和含量,参见表1。
表1
Figure BSA0000191220060000031
Figure BSA0000191220060000041
Figure BSA0000191220060000051
注:wt%均指的是质量百分含量。
二、效果试验
为了进一步考察该水基环保中性清洗液的清洗效果,本发明采用了如下技术手段:将毛巾浸泡在上述清洗液原液或稀释液中,然后利用毛巾直接擦洗设备基材表面,擦洗后,利用去离子水再次清洗基材设备表面,确认清洗效果。该水基环保中性清洗液性质以及清洗效果如下表2所示。
表2
实施例 溶液性质(5~35℃) 稀释倍数 清洗效果
1 溶解均一 10 干净,无残留
2 溶解均一 原液 干净,无残留
3 溶解均一 1 干净,无残留
4 溶解均一 50 干净,无残留
5 溶解均一 20 干净,无残留
6 溶解均一 2 干净,无残留
7 溶解均一 30 干净,无残留
8 溶解均一 5 干净,无残留
空白实验 丙酮 原液 不干净,有残留
从上述表格2可以看出,本发明的水洗环保中性清洗液如实施例1-8所示,在5-50℃范围内均可得到溶解均一的溶液。清洗效果表明都可以得到干净、无残留清洗结果。与实施例对比,丙酮无法有效的清洗基材表面的杂质,丙酮属于易制毒产品,对人体危害较大。
综上所述,本发明的进步意义在于提供了一种水基环保中性清洗液,该组合物能有效去除TFT-LCD、LED、OLED、先进封装和半导体晶圆等制造过程中基材设备表面残余物。该产品清洗效果好、润湿渗透性强、无毒无污染,可以直接人工手动擦洗。
以上对本发明的具体实施例进行了详细描述,但其只是作为范例,本发明并不限制于以上描述的具体实施例。对于本领域技术人员而言,任何对本发明进行的等同修改和替代也都在本发明的范畴之中。因此,在不脱离本发明的精神和范围下所作的均等变换和修改,都应涵盖在本发明的范围内。

Claims (6)

1.一种水基环保中性清洗液,其特征在于,按重量百分比计,包括式I结构的烷基醇聚醚0.1-25%、醇醚类溶剂0.1-50%、醇类溶剂0.1-25%,去离子水30-99.7%,
Figure FSA0000191220050000011
其中m,n均为1-50的整数。
2.根据权利要求1所述的一种水基环保中性清洗液,其特征在于,所述的醇醚类溶剂为乙二醇醚类和/或丙二醇醚类。
3.根据权利要求1所述的一种水基环保中性清洗液,其特征在于,所述的去离子水为电阻值大于2MΩ/cm的去离子水。
4.根据权利要求1所述的一种水基环保中性清洗液,其特征在于,所述的醇类溶剂选自乙醇、丙醇、丁醇、戊醇、己醇、庚醇、辛醇、壬醇、癸醇、异丙醇、异丁醇、乙二醇、丙二醇、丙三醇、、季戊四醇、木糖醇、山梨糖醇、环戊醇、环己醇、苯甲醇、苯乙醇、苯丙醇中的一种或几种。
5.根据权利要求1所述的一种水基环保中性清洗液,其特征在于,所述清洗液是将式I结构的烷基醇聚醚、醇醚类溶剂、醇类溶剂和去离子水依次加入搅拌溶解,控制溶解过程温度≤50℃,溶解完成后过0.2μm滤芯所得。
6.根据权利要求1所述的一种水基环保中性清洗液,其特征在于,所述清洗液直接使用,或稀释2-100倍使用。
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112175750A (zh) * 2020-11-12 2021-01-05 福建省佑达环保材料有限公司 一种半导体制程中使用的中性水基清洗剂组合物
CN112175750B (zh) * 2020-11-12 2021-08-13 福建省佑达环保材料有限公司 一种半导体制程中使用的中性水基清洗剂组合物

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