Correlation between chemistry of polymer building blocks and microelectronics reliability

Bressers, H.J.L.; Driel, W.D. van; Jansen, K.M.B.; Ernst, L.J.; Zhang, G. Q.

doi:10.1016/j.microrel.2006.09.035

Cited by 6 publications

(3 citation statements)

References 7 publications

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“…Block polymers with precise monomer sequences provide a platform for producing diverse materials with properties suitable for high-value emerging applications, including data storage, anticounterfeiting technologies, microelectronics, and nanomedicine . Nature provides a green pathway for spontaneously preparing sequence-defined biopolymers with structural and functional complexity, such as nucleic acids (DNA and RNA), from complex mixtures. , Such natural systems have inspired polymer chemists to mimic biosynthesis.…”

Section: Introductionmentioning

confidence: 99%

Sequential Polymerization from Complex Monomer Mixtures: Access to Multiblock Copolymers with Adjustable Sequence, Topology, and Gradient Strength

Xia

Gao

et al. 2022

Macromolecules

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Switchable polymerization shows considerable potential for simulating the molecular precision of natural biopolymers, such as nucleic acids or proteins, to synthesize highly sequence-controlled macromolecules but is mainly limited to three-and four-component systems. To expand the scope to systems with up to five components, we established a reactivity gradient among 12 monomers, including cyclic anhydrides, cyclic esters, and epoxides. Highly selective competitive anhydride/epoxide, selfswitchable cyclic anhydride/epoxide/cyclic ester, and competitive cyclic ester/trimethylene carbonate copolymerizations were achieved using a simple alkyl metal carboxylate catalyst. Anhydrides gave access to gradient copolymers with reactivity ratios of 2 < r 1 < 5, 0.7 > r 2 > 0.3 giving medium-gradient copolymers and r 1 > 400, r 2 < 0.03 giving block copolymers. Further, the anhydride reactivity was predicted using 13 C NMR chemical shifts. This comonomer library will allow more complex copolymer structures with adjustable sequence, topology, and gradient strength to be predicted and prepared.

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Section: Introductionmentioning

confidence: 99%

Sequential Polymerization from Complex Monomer Mixtures: Access to Multiblock Copolymers with Adjustable Sequence, Topology, and Gradient Strength

Xia

Gao

et al. 2022

Macromolecules

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“…The properties of block polymers can be adjusted by varying their monomer sequence. Consequently, this endows block polymers with the ability to provide a platform for the production of a wide range of advanced materials, with applications in drug delivery, , data storage, microelectronics, , and nanolithography . Regarding the synthesis of block polymer, self-switchable polymerization is the most promising method because it applies mixture of monomers and uses a single catalyst that spontaneously connects different catalytic cycles to produce block sequence, − thereby overcoming the disadvantages of conventional procedures, e.g., sequential monomer addition approach and coupling of premade blocks. , …”

Section: Introductionmentioning

confidence: 99%

Multidimensional Control of Repeating Unit/Sequence/Topology for One-Step Synthesis of Block Polymers from Monomer Mixtures

Xia

Gao

et al. 2022

J. Am. Chem. Soc.

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Synchronously and thoroughly adjusting the chemical structure difference between two blocks of the diblock copolymer is very useful for designing materials but difficult to achieve via self-switchable alternating copolymerization. Here, we report self-switchable alternating copolymerization from a mixture of two different cyclic anhydrides, epoxides, and oxetanes, where a simple alkali metal carboxylate catalyst switches between ring-opening alternating copolymerization (ROCOP) of cyclic anhydrides/epoxides and ROCOP of cyclic anhydrides/oxetanes, resulting in the formation of a perfect block tetrapolymer. By investigating the reactivity ratio of these comonomers, a reactivity gradient was established, enabling the precise synthesis of block copolymers with synchronous adjustment of each unit’s chemical structure/sequence/topology. Consequently, a diblock tetrapolymer with two glass transition temperatures (T g) can be easily produced by adjusting the difference in chemical structures between the two blocks.

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“…This is caused by complicated physical and chemical processes taking place under the combined action of internal and external factors during the operation of electronic devices [1]. The main factors affecting the degradation rate (aging) of polymers are the following: temperature [2], thermocycling [3], light and radiation impact [4], and ambient moisture [5].…”

Section: Introductionmentioning

confidence: 99%

A new approach to numerical analysis of reliability indices in electronics

Geniy

Evgeny

2015

EPJ Web of Conferences

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Abstract. Spatial modeling of unsteady temperature fields is conducted in a microelectronic printed circuit board (PCB) with an account of convective and radiation heat transfer with the environment. The data for numerical modeling of temperature fields serve as a basis for determining the aging characteristics of the polymer material as a structural component of electronic engineering products. The obtained results allow concluding on the necessity to consider spatial nonuniform temperature fields when estimating the degree of polymeric materials degradation at the continuous service of products, as well as on the impact of polymer aging on reliability features of microelectronic devices.

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Correlation between chemistry of polymer building blocks and microelectronics reliability

Cited by 6 publications

References 7 publications

Sequential Polymerization from Complex Monomer Mixtures: Access to Multiblock Copolymers with Adjustable Sequence, Topology, and Gradient Strength

Sequential Polymerization from Complex Monomer Mixtures: Access to Multiblock Copolymers with Adjustable Sequence, Topology, and Gradient Strength

Multidimensional Control of Repeating Unit/Sequence/Topology for One-Step Synthesis of Block Polymers from Monomer Mixtures

A new approach to numerical analysis of reliability indices in electronics

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