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南京安伦:Nouryon(诺力昂)分散剂在CMP抛光液中的作用机制轻解读

  • 2026-06-23 22:15:17
南京安伦:Nouryon(诺力昂)分散剂在CMP抛光液中的作用机制轻解读

相信很多人在了解半导体化学机械抛光(CMP)液配方时,常常听到有一种说法是,“这里边95%以上是水”,言下之意就是真正发挥去除作用的功能部分只占5%以下。然而更多人不知道的是,在这不足5%的部分里,磨料颗粒占比(质量百分数)往往又超过95%,剩下的那一丁点“添加剂”虽然量虽小,组成却很复杂,它们却决定了CMP作业的工艺窗口、缺陷率、选择性、凹陷、侵蚀和良率,发挥着“四两拨千斤”的关键作用。

CMP抛光液中磨粒(如SiO₂、CeO₂、Al₂O₃)粒径通常在亚微米甚至纳米级别,由于范德华力、温度变化、杂质等因素的影响,这些细小的磨粒极易发生团聚,导致抛光过程中磨料分布不均,严重影响表面平整度并产生划伤;而CeO₂作为CMP核心磨料,其Ce³⁺/Ce⁴⁺活性位点与硅醇基团通过氧空位桥接(Ce-O-Si),除了自身的机械磨削作用,也通过化学反应“软化”表面,从而实现机械-化学协同的高效和精密抛光。添加剂的作用大致可分为三类:一是作为氧化剂和PH调节剂,进行表面化学反应;再就是对磨粒起到分散作用,防止团聚导致划痕和沉降;还有是选择吸附(钝化)作用。以下通过添加剂在抛光液中的具体应用把三种作用说明白。

Alcosperse系列——是一类丙烯酸分散剂,有湿剂和干粉两种形式,可被视为“粒子管理”平台。

Alcosperse 5961和Alcosperse 6194

Alcosperse的分散机理是通过锚定段结合磨粒,通过阴离子亲水段与溶液融合,通过静电空间位阻双重机制来维持抛光液的稳定。上图中两款湿剂尤其针对氧化铈有非常好的分散效果,这能够给氧化铈提供更少的大颗粒团聚和更大的活性反应接触面积。相对比传统静电吸附分散剂,这两种新型分散剂不会随着pH的改变或者和离子强度的变化而不稳定,从而能有效地实现氧化铈颗粒在苛刻CMP抛光液环境中的长期分散稳定。

Alcosperse 602N Dry和Alcosperse 175D两种干粉可以为氧化铈提供更高效分散和更高稳定循环使用的效果,适用于粉体研磨料配方。

Versa-TL 3和Narlex D-72作为分散剂,与Alcosperse的差异在于锚定机制、电荷特性、吸附行为等。

Versa-TL 3和Narlex D-72

Versa-TL是一种磺化苯乙烯-马来酸共聚物即使在弱酸性环境中也能维持高负电荷密度,这使其拥有非常强的静电分散能力,尤其在涉及多种材料同时抛光的CMP工艺中(如钨或铜布线层与介电层的平坦化),抛光液中不可避免地会出现多种金属离子,Versa-TL 3的晶体修饰功能有助于防止这些离子形成不溶性沉淀物,减少晶圆表面缺陷;

Narlex D-72则是一种磺酸基和羧酸基双官能团高电荷密度组合羧酸基团提供表面锚定能力和优异的螯合性能;磺酸基团提供高电荷密度和宽pH范围的稳定性,这对于控制CMP抛光液的成本和保持晶圆表面洁净度具有双重意义。

小结

CMP抛光液是一个包含磨料、pH调节剂、氧化剂、螯合剂和分散剂等多种组分的复杂系统,各组分之间存在着复杂的协同关系。以上几款分散剂分别代表了Nouryon(诺力昂)在CMP抛光液添加剂领域的不同技术路线。

企业介绍

诺力昂业务遍布全球 80多个国家,旗下拥有多个行业标杆品牌。2020年10月,诺力昂正式推出用于半导体行业CMP抛光的二氧化硅溶胶产品系列,这无疑印证了其近年来将CMP抛光调整为业务重心之一,作为全球特种化学品行业的领军企业,期待诺力昂带来更多优秀产品。

南京安伦贸易有限公司是专业化学品综合贸易服务商,成立于2002年,同年即成为了诺力昂公司(原阿克苏诺贝尔表面化学)在中国的代理商,并且合作至今。专业从事诺力昂电子电镀化学、水溶肥、抗静电等应用领域产品的推广与销售,依托诺力昂优质的产品和技术支持,为中国广大客户提供良好的服务,为中国企业的发展贡献自己的力量。7月15-16日,在“2026年全国精密研磨抛光材料及加工技术发展论坛(第四届)”现场,南京安伦也将携相关产品与应用案例亮相(展位号:24),与行业同仁共同探讨CMP浆料的分散剂的应用技术。

无锡精密研磨抛光论坛会务组

参会请联系:

李幸萍  13168670536(微信同号)

产品推广、企业宣传报道、会员服务

请联系:张祖玲  18666974612

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  1. CONNECT:[ UseTime:0.000408s ] mysql:host=127.0.0.1;port=3306;dbname=b460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000545s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.014568s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000357s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000736s ]
  6. SELECT * FROM `set` [ RunTime:0.001413s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000721s ]
  8. SELECT * FROM `article` WHERE `id` = 588615 LIMIT 1 [ RunTime:0.007148s ]
  9. UPDATE `article` SET `lasttime` = 1782411285 WHERE `id` = 588615 [ RunTime:0.009400s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000321s ]
  11. SELECT * FROM `article` WHERE `id` < 588615 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.006553s ]
  12. SELECT * FROM `article` WHERE `id` > 588615 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.007622s ]
  13. SELECT * FROM `article` WHERE `id` < 588615 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.040046s ]
  14. SELECT * FROM `article` WHERE `id` < 588615 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.021578s ]
  15. SELECT * FROM `article` WHERE `id` < 588615 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.013725s ]
0.216737s