CN104934332A - 一种铜铝复合薄膜生产工艺 - Google Patents

一种铜铝复合薄膜生产工艺 Download PDF

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Publication number
CN104934332A
CN104934332A CN201510211251.9A CN201510211251A CN104934332A CN 104934332 A CN104934332 A CN 104934332A CN 201510211251 A CN201510211251 A CN 201510211251A CN 104934332 A CN104934332 A CN 104934332A
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Prior art keywords
film
aluminium
copper
low temperature
aluminum
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CN201510211251.9A
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焦国平
齐继业
方兴旺
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Anhui Songtai Packing Material Co Ltd
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Anhui Songtai Packing Material Co Ltd
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Priority to CN201510211251.9A priority Critical patent/CN104934332A/zh
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/70Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
    • H01L21/71Manufacture of specific parts of devices defined in group H01L21/70
    • H01L21/768Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
    • H01L21/76838Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/48Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
    • H01L21/4814Conductive parts
    • H01L21/4885Wire-like parts or pins

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

本发明公开了一种铜铝复合薄膜生产工艺,其工艺步骤如下:原材料筛选:选取35%PET塑料、25%聚丙烯、30%乙酰乙酸乙酯树脂和10%甲酸乙二醇酯,融化、改性、挤出流延、冷却、电晕处理、切除废边卷取,制成PET保护膜,本发明工艺合理、简洁,大大缩短工艺流程,效率高,速度快,原料选择合理,成本较低,可快速降解,减少环境污染。

Description

一种铜铝复合薄膜生产工艺
技术领域
本发明涉及薄膜领域,特别涉及一种铜铝复合薄膜生产工艺。
背景技术
铝作为一种稳定的低电阻率的金属,被广泛用于芯片后段的金属互连线路或者与后续封装线连接的接触垫 ;其中,晶须是指在颗粒(grain)边缘由于应力效应凸起的须状的缺陷。
虽然高温的铝颗粒(grain)大、电阻率低,且填充性能与可靠性好,但在沉积较厚(大于 1000埃)的铝薄膜时,由于铝(Al)薄膜与 SiO2 层的热膨胀系数存在较大差异,而沉积过程中产生的热应力会随着膜厚的增加不断累积,当达到到一定程度时在铝颗粒边缘会有铝钻出来,形成晶须状的缺陷(晶须),从而造成产品良率的降低。
发明内容
本发明所要解决的技术问题是提供一种铜铝复合薄膜生产工艺,以解决现有技术中导致的上述多项缺陷。
为实现上述目的,本发明提供以下的技术方案:一种铜铝复合薄膜生产工艺,其工艺步骤如下:
(1)依次采用低温沉积第一铜薄膜和第一氮化铜薄膜覆盖所述硅衬底的上表面;
(2)采用低温沉积第一铝薄膜后,采用高温沉积第二铝薄膜覆盖所述第一铝薄膜的上表面,形成铝层;
(3)采用低温沉积第一铝薄膜后,采用高温沉积第二铝薄膜覆盖所述第一铝薄膜的上表面,形成铝层;
(4)用压辊进行平整;
(5)晕处理机进行电晕处理;
(6)将铝薄膜两边废边切除并卷取包装。
优选的,所述步骤(1)中,所述低温为30-45℃。
优选的,所述步骤(2)中,所述低温为35-50℃,高温为60-75℃。
采用以上技术方案的有益效果是:本发明提出一种铝薄膜制备工艺,通过优化铝薄膜的沉积条件,改善了铝颗粒(grain)的成长过程,从而有效的减少晶须缺陷的产生,进而提高产品的良率。
具体实施方式
下面详细说明本发明的优选实施方式。
出示本发明的具体实施方式:
一种铜铝复合薄膜生产工艺,其工艺步骤如下:
(1)依次采用低温沉积第一铜薄膜和第一氮化铜薄膜覆盖所述硅衬底的上表面;
(2)用低温沉积第一铝薄膜后,采用高温沉积第二铝薄膜覆盖所述第一铝薄膜的上表面,形成铝层;
(3)用低温沉积第一铝薄膜后,采用高温沉积第二铝薄膜覆盖所述第一铝薄膜的上表面,形成铝层;
(4)压辊进行平整;
(5)处理机进行电晕处理;
(6)铝薄膜两边废边切除并卷取包装。
优选的,所述步骤(1)中,所述低温为30-45℃。
优选的,所述步骤(2)中,所述低温为35-50℃,高温为60-75℃。
采用以上技术方案的有益效果是:,本发明提出一种铝薄膜制备工艺,通过优化铝薄膜的沉积条件,改善了铝颗粒(grain)的成长过程,从而有效的减少晶须缺陷的产生,进而提高产品的良率。
以上所述的仅是本发明的优选实施方式,应当指出,对于本领域的普通技术人员来说,在不脱离本发明创造构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。

Claims (3)

1.一种铜铝复合薄膜生产工艺,其特征在于,其工艺步骤如下:
依次采用低温沉积第一铜薄膜和第一氮化铜薄膜覆盖所述硅衬底的上表面;
采用低温沉积第一铝薄膜后,采用高温沉积第二铝薄膜覆盖所述第一铝薄膜的上表面,形成铝层;
采用低温沉积第一铝薄膜后,采用高温沉积第二铝薄膜覆盖所述第一铝薄膜的上表面,形成铝层;
使用压辊进行平整;
电晕处理机进行电晕处理;
将铝薄膜两边废边切除并卷取包装。
2.根据权利要求1所述的一种铜铝复合薄膜生产工艺,其特征在于,所述步骤(1)中,所述低温为30-45℃。
3.根据权利要求1所述的一种铜铝复合薄膜生产工艺,其特征在于,所述步骤(2)中,所述低温为35-50℃,高温为60-75℃。
CN201510211251.9A 2015-04-29 2015-04-29 一种铜铝复合薄膜生产工艺 Pending CN104934332A (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1234606A (zh) * 1998-04-21 1999-11-10 株式会社东芝 用于制造BEOL布线的小接触通孔的高生产率Al-Cu薄膜溅射工艺
CN102709180A (zh) * 2012-05-22 2012-10-03 上海华力微电子有限公司 一种铝薄膜的制备工艺
CN103361621A (zh) * 2012-03-26 2013-10-23 上海宏力半导体制造有限公司 一种用于沉积厚铝铜薄膜层的方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1234606A (zh) * 1998-04-21 1999-11-10 株式会社东芝 用于制造BEOL布线的小接触通孔的高生产率Al-Cu薄膜溅射工艺
CN103361621A (zh) * 2012-03-26 2013-10-23 上海宏力半导体制造有限公司 一种用于沉积厚铝铜薄膜层的方法
CN102709180A (zh) * 2012-05-22 2012-10-03 上海华力微电子有限公司 一种铝薄膜的制备工艺

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Application publication date: 20150923