CN110982489A - 一种高频胶水及应用该高频胶水的高频挠性覆铜板 - Google Patents
一种高频胶水及应用该高频胶水的高频挠性覆铜板 Download PDFInfo
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Abstract
本发明提供一种高频胶水及应用该高频胶水的高频挠性覆铜板,主要涉及覆铜板制备领域。一种高频胶水,由以下质量分数的组分组成:环氧树脂10~15份,DCPD改性的苯并树脂10‑30份或聚苯醚树脂(PPO)8‑18份,BMI树脂2‑8份,SMA酸酐固化剂5‑10份,低介电磷腈阻燃剂2‑8份,低介电橡胶增韧剂5‑10份,丁酮25‑45份。一种高频挠性覆铜板,应用上述的高频胶水粘结。本发明的有益效果在于:本发明通过高频胶水的配置,将其应用到覆铜板上得到了低介电常数、低介电损耗与低吸水率的AiP天线材料,为5G技术的应用提供了硬件支持。
Description
技术领域
本发明主要涉及覆铜板制备领域,具体是一种高频胶水及应用该高频胶水的高频挠性覆铜板。
背景技术
2019年作为5G商用元年,其第五代无线网络和技术,相比第四代(4G)网络在数据传输速度、容量和数据传输延迟方面等,都有较大的飞跃。但作为消费者,其实更看重的是5G终端应用。而5G时代的实现,离开不了手机内部材料的升级,手机天线也是重要一部分,其中FPC天线配线,密度高、重量轻、厚度薄,能够显着缩小硬件体积,如今无论是只能手机还是电脑中都被广泛使用。
FPC是以PI或者PET为基材制作的一种具有高度可靠性的柔性印刷电路板,在智能手机、平板中皆有其出现,未来还有可能被应用于可穿戴设备和智能汽车中。而5G时代对于材料的要求变得更高,更高的电磁波传输速度、更小的信号传播损失,这意味着应用材料的介电常数和介电损耗都要尽可能的小,液晶聚合物(简称LCP)正是满足这些苛刻要求的材料,其介电常数(Dk)=2.9,介电损耗(Df)=0.002,吸水率=0.05%。
据研究与咨询机构TrendBank报告显示,在5G手机FPC天线材料供应链中,终端设备天线中高频改质聚酰亚胺材料(简称mPI)是Pre-5G的过渡技术,因为其Dk=3.0,Df=0.004,吸水率=0.5%,无法完全替代LCP,LCP软板仍是5G毫米波高频材料的未来趋势。
但LCP-FPC技术门槛非常高,产业链高度集中,难度最大的为上游LCP膜材料及制膜工艺。目前,能批量制作LCP膜的企业有可乐丽、村田、Denka和KGK,全部集中在日本,国内无法取得此材料及加工技术。
比较LCP及mPI来看,前者成本太贵而且技术难度大,后者的材料规格只能作为这两年新材料开发出来前的过渡产品,所以我们加速开发出复合型的新高频5G材料,特别是介电常数Dk<2.6及介电损耗Df<0.005的树脂胶水,并与PPS及PTFE薄膜结合,创造出最先端的AiP天线材料。
发明内容
为解决现有技术的不足,本发明提供了一种高频胶水及应用该高频胶水的高频挠性覆铜板,通过高频胶水的配置,将其应用到覆铜板上得到了低介电常数、低介电损耗与低吸水率的AiP天线材料,为5G技术的应用提供了硬件支持。
本发明为实现上述目的,通过以下技术方案实现:
一种高频胶水,由以下质量分数的组分组成:环氧树脂10~15份,DCPD改性的苯并树脂10-30份或聚苯醚树脂(PPO)8-18份,BMI树脂2-8份,SMA酸酐固化剂5-10份,低介电磷腈阻燃剂2-8份,低介电橡胶增韧剂5-10份,丁酮25-45份。
所述环氧树脂为DCPD改性的环氧树脂。
所述环氧树脂为三官能环氧树脂。
一种高频胶水,制备方法如下:
SA1:依上述配方的质量分数称取原料,并置入搅拌釜中,以转速300rpm在温度50℃下搅拌2小时;
SA2:待完全溶解后,经10um滤网过滤,静置半小时除气泡,即得高频胶水。
一种高频挠性覆铜板,应用由权利要求1-3所述的高频胶水粘结。
一种高频挠性覆铜板,加工方法如下:
SB1:取上述高频胶水涂布于PTFE薄膜上,经120℃烘烤30分钟;
SB2:将铜箔覆于SB1步骤PTFE薄膜涂有高频胶水一面,经经150-220℃热压30-120分钟;
SB3:将SB2步骤热压后的PTFE薄膜在烤箱200℃下固化2小时,即制得单面高频基板。
一种高频挠性覆铜板,加工方法如下:
SC1:取上述高频胶水涂布于PPS薄膜的两面,经120℃烘烤30分钟;
SC2:将铜箔覆于SB1步骤PPS薄膜的两面,经经150-220℃热压30-120分钟;
SC3:将SB2步骤热压后的PPS薄膜在烤箱200℃下固化2小时,即制得双面高频基板。
对比现有技术,本发明的有益效果是:
本发明通过研发的高频胶水涂覆于PTFE薄膜或者PPS薄膜上,并热压固定铜箔,得到低介电常数、低介电损耗与低吸水率的基板材质,以较低的成本得到性能达到LCP性能的材料,为5G的应用提供硬件支持。
具体实施方式
结合具体实施例,对本发明作进一步说明。应理解,这些实施例 仅用于说明本发明而不用于限制本发明的范围。此外应理解,在阅读 了本发明讲授的内容之后,本领域技术人员可以对本发明作各种改动 或修改,这些等价形式同样落于本申请所限定的范围。
高频胶水实施例A:
一种高频胶水,由以下质量分数的组分组成:日本DIC 7200H的DCPD改性的环氧树脂100g,中国台湾金隆化学的DCPD改性的苯并树脂200g,日本KI化工BMI-70的BMI树脂20g,美国格雷威利EF40的SMA酸酐固化剂80g,日本伏见制药PF-300B的低介电磷腈阻燃剂40g,日本JSR-906的低介电橡胶增韧剂60g,中石化的丁酮溶剂400g。
依上述配方的质量分数称取原料,并置入搅拌釜中,以转速300rpm在温度50℃下搅拌2小时;待完全溶解后,经10um滤网过滤,静置半小时除气泡,即得高频胶水A。
高频胶水实施例B:
一种高频胶水,由以下质量分数的组分组成:日本三菱1031H60的三官能环氧树脂150g,美国Sabic 9000的聚苯醚树脂(PPO)150g,日本KI化工BMI-70的BMI树脂20g,美国格雷威利EF40的SMA酸酐固化剂80g,日本伏见制药PF-300B的低介电磷腈阻燃剂40g,日本JSR-906的低介电橡胶增韧剂60g,中石化的丁酮溶剂400g。
依上述配方的质量分数称取原料,并置入搅拌釜中,以转速300rpm在温度50℃下搅拌2小时;待完全溶解后,经10um滤网过滤,静置半小时除气泡,即得高频胶水B。
覆铜板实施例1:
取高频胶水A涂布于PTFE薄膜上,经120℃烘烤30分钟;然后将铜箔覆于PTFE薄膜涂有高频胶水一面,经180℃热压一小时;最后将热压后的PTFE薄膜在烤箱200℃下固化2小时,即制得单面高频基板1。
覆铜板实施例2:
取高频胶水B涂布于PTFE薄膜上,经120℃烘烤30分钟;然后将铜箔覆于PTFE薄膜涂有高频胶水一面,经180℃热压一小时;最后将热压后的PTFE薄膜在烤箱200℃下固化2小时,即制得单面高频基板2。
覆铜板实施例3:
取高频胶水A涂布于PPS薄膜的两面,经120℃烘烤30分钟;然后将铜箔覆于PPS薄膜的两面,经180℃热压一小时;最后将热压后的PPS薄膜在烤箱200℃下固化2小时,即制得双面高频基板1。
覆铜板实施例4:
取高频胶水B涂布于PPS薄膜的两面,经120℃烘烤30分钟;然后将铜箔覆于PPS薄膜的两面,经180℃热压一小时;最后将热压后的PPS薄膜在烤箱200℃下固化2小时,即制得双面高频基板2。
对覆铜板实施例1-4得到的基板进行Tg(基材保持刚性的最高温度)、介电常数、介电损耗、吸水率、剥离强度及耐热性测试,得到如下数据:
综上所述,1、高频胶水B配方中三官能环氧树脂具有高Tg及高耐热功能,而聚苯醚树脂的介电常数及介电损耗很低,非常适合用于高频材料,所以制得的高频基板符合市场产品的规格需求。2.不论是PTFE还是PPS薄膜,其介电常数及介电损耗都符合规格需求,惟PPS的材料耐热性低于PTFE,适用于对耐热性要求不高的产品。PTFE薄膜的吸水率及耐热性佳,剥离强度稍低于PPS。3.高频胶水B的配方结合PTFE薄膜,性能达到LCP的水平,将作为本案未来生产的主材料。4.高频胶水A的配方适用Dk=2.5的产品要求,高频胶水二的配方适用于Dk=2.3的产品要求。
Claims (7)
1.一种高频胶水,其特征在于,由以下质量分数的组分组成:环氧树脂10~15份,DCPD改性的苯并树脂10-30份或聚苯醚树脂(PPO)8-18份,BMI树脂2-8份,SMA酸酐固化剂5-10份,低介电磷腈阻燃剂2-8份,低介电橡胶增韧剂5-10份,丁酮25-45份。
2.根据权利要求1所述的一种高频胶水,其特征在于:所述环氧树脂为DCPD改性的环氧树脂。
3.根据权利要求1所述的一种高频胶水,其特征在于:所述环氧树脂为三官能环氧树脂。
4.根据权利要求1-3任一权利要求所述的一种高频胶水,其特征在于,制备方法如下:
SA1:依上述配方的质量分数称取原料,并置入搅拌釜中,以转速300rpm在温度50℃下搅拌2小时;
SA2:待完全溶解后,经10um滤网过滤,静置半小时除气泡,即得高频胶水。
5.一种高频挠性覆铜板,其特征在于,应用由权利要求1-3所述的高频胶水粘结。
6.根据权利要求5所述的一种高频挠性覆铜板,其特征在于,加工方法如下:
SB1:取上述高频胶水涂布于PTFE薄膜上,经120℃烘烤30分钟;
SB2:将铜箔覆于SB1步骤PTFE薄膜涂有高频胶水一面,经150-220℃热压30-120分钟;
SB3:将SB2步骤热压后的PTFE薄膜在烤箱200℃下固化2小时,即制得单面高频基板。
7.根据权利要求5所述的一种高频挠性覆铜板,其特征在于,加工方法如下:
SC1:取上述高频胶水涂布于PPS薄膜的两面,经120℃烘烤30分钟;
SC2:将铜箔覆于SB1步骤PPS薄膜的两面,经150-220℃热压30-120分钟;
SC3:将SB2步骤热压后的PPS薄膜在烤箱200℃下固化2小时,即制得双面高频基板。
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WO2022070901A1 (ja) * | 2020-09-29 | 2022-04-07 | 日東電工株式会社 | ミリ波アンテナ |
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