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Bonding of PMMA to silicon by femtosecond laser pulses by Filippo Maria Conte Capodacqua; Annalisa Volpe; Caterina Gaudiuso; Antonio Ancona is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.
What is Bonding of PMMA to silicon by femtosecond laser pulses about?
Many devices and objects, from microelectronics to microfluidics, consist of parts made from dissimilar materials, such as different polymers, metals or semiconductors. Techniques for joining such hybrid micro-devices, generally, are based on gluing or thermal processes, which all present some drawbacks. For example, these methods are unable to control the size and shape of the bonded area, and present risks of deterioration and contamination of the substrates. Ultrashort laser bonding is a non-contact and flexible technique to precisely join similar and dissimilar materials, used both for joining polymers, and polymers to metallic substrates, but not yet for joining polymers to silicon. We report on direct transmission femtosecond laser bonding of poly(methyl methacrylate) (PMMA) and silicon. The laser process was performed by focusing ultrashort laser pulses at high repetition rate at the interface between the two materials through the PMMA upper layer. The PMMA-Si bond strength was evaluated as a function of different laser processing parameters. A simple, analytical, model was set up and used to determine the temperature of the PMMA during the bonding process. As a proof of con
Who reads Bonding of PMMA to silicon by femtosecond laser pulses?
It is typically read by researchers, students, and practitioners in Biochemistry, Genetics and Molecular Biology.
- Author
- Filippo Maria Conte Capodacqua; Annalisa Volpe; Caterina Gaudiuso; Antonio Ancona
- Publisher
- Springer Science and Business Media LLC
- Published
- 2023
- Language
- EN
- Field
- Biochemistry, Genetics and Molecular Biology (Life Sciences)