Boosting screen-printing and microwave electrical performance of copper paste for LTCC applications through rheological control.
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| Title: | Boosting screen-printing and microwave electrical performance of copper paste for LTCC applications through rheological control. |
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| Authors: | Ke, Gengrun1,2 (AUTHOR), Feng, Jingjing1 (AUTHOR) fengjingjing@mail.sic.ac.cn, Ma, Mingsheng1 (AUTHOR), Li, Yongxiang3 (AUTHOR), Liu, Zhifu1,2 (AUTHOR) liuzf@mail.sic.ac.cn |
| Source: | Journal of Materials Science: Materials in Electronics. Mar2026, Vol. 37 Issue 9, p1-13. 13p. |
| Subjects: | Rheology, Screen process printing, Propylene carbonate, Non-Newtonian flow (Fluid dynamics), Conductive ink, Low Temperature Cofired Ceramic technology, Thixotropy |
| Abstract: | Copper electrode pastes for LTCC applications have advantages of high electrical conductivity and low cost. In this work, a novel Poly (propylene carbonate) (PPC) organic vehicle is developed, and its effects on rheological characteristics, screen-printing properties, and microwave electrical performance of copper paste are systematically investigated. PPC organic vehicle imparts ideal pseudoplasticity and thixotropy to copper paste, enabling precise screen-printing of fine lines below 40 μm and forming an excellent surface morphology. Moreover, PPC organic vehicle decomposes completely in nitrogen atmosphere without carbon residues. Copper electrode exhibits an ultra-low sheet resistance of 0.4 mΩ/□, along with outstanding high-frequency performance, including a skin conductivity close to 64% of the theoretical value and a high Q-factor of 4964. This work achieves a synergistic improvement in screen-printing compatibility and microwave electrical performance in copper electrode paste, providing a reliable material solution for the high-performance LTCC components. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Materials Science: Materials in Electronics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 192430579 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Boosting screen-printing and microwave electrical performance of copper paste for LTCC applications through rheological control. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Ke%2C+Gengrun%22">Ke, Gengrun</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Feng%2C+Jingjing%22">Feng, Jingjing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> fengjingjing@mail.sic.ac.cn</i><br /><searchLink fieldCode="AR" term="%22Ma%2C+Mingsheng%22">Ma, Mingsheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Yongxiang%22">Li, Yongxiang</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Zhifu%22">Liu, Zhifu</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> liuzf@mail.sic.ac.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%3A+Materials+in+Electronics%22">Journal of Materials Science: Materials in Electronics</searchLink>. Mar2026, Vol. 37 Issue 9, p1-13. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Rheology%22">Rheology</searchLink><br /><searchLink fieldCode="DE" term="%22Screen+process+printing%22">Screen process printing</searchLink><br /><searchLink fieldCode="DE" term="%22Propylene+carbonate%22">Propylene carbonate</searchLink><br /><searchLink fieldCode="DE" term="%22Non-Newtonian+flow+%28Fluid+dynamics%29%22">Non-Newtonian flow (Fluid dynamics)</searchLink><br /><searchLink fieldCode="DE" term="%22Conductive+ink%22">Conductive ink</searchLink><br /><searchLink fieldCode="DE" term="%22Low+Temperature+Cofired+Ceramic+technology%22">Low Temperature Cofired Ceramic technology</searchLink><br /><searchLink fieldCode="DE" term="%22Thixotropy%22">Thixotropy</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Copper electrode pastes for LTCC applications have advantages of high electrical conductivity and low cost. In this work, a novel Poly (propylene carbonate) (PPC) organic vehicle is developed, and its effects on rheological characteristics, screen-printing properties, and microwave electrical performance of copper paste are systematically investigated. PPC organic vehicle imparts ideal pseudoplasticity and thixotropy to copper paste, enabling precise screen-printing of fine lines below 40 μm and forming an excellent surface morphology. Moreover, PPC organic vehicle decomposes completely in nitrogen atmosphere without carbon residues. Copper electrode exhibits an ultra-low sheet resistance of 0.4 mΩ/□, along with outstanding high-frequency performance, including a skin conductivity close to 64% of the theoretical value and a high Q-factor of 4964. This work achieves a synergistic improvement in screen-printing compatibility and microwave electrical performance in copper electrode paste, providing a reliable material solution for the high-performance LTCC components. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Materials Science: Materials in Electronics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s10854-026-16990-x Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 1 Subjects: – SubjectFull: Rheology Type: general – SubjectFull: Screen process printing Type: general – SubjectFull: Propylene carbonate Type: general – SubjectFull: Non-Newtonian flow (Fluid dynamics) Type: general – SubjectFull: Conductive ink Type: general – SubjectFull: Low Temperature Cofired Ceramic technology Type: general – SubjectFull: Thixotropy Type: general Titles: – TitleFull: Boosting screen-printing and microwave electrical performance of copper paste for LTCC applications through rheological control. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Ke, Gengrun – PersonEntity: Name: NameFull: Feng, Jingjing – PersonEntity: Name: NameFull: Ma, Mingsheng – PersonEntity: Name: NameFull: Li, Yongxiang – PersonEntity: Name: NameFull: Liu, Zhifu IsPartOfRelationships: – BibEntity: Dates: – D: 21 M: 03 Text: Mar2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 09574522 Numbering: – Type: volume Value: 37 – Type: issue Value: 9 Titles: – TitleFull: Journal of Materials Science: Materials in Electronics Type: main |
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