Theses and Dissertations from UMD

Permanent URI for this communityhttp://hdl.handle.net/1903/2

New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a give thesis/dissertation in DRUM

More information is available at Theses and Dissertations at University of Maryland Libraries.

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Author: search.filters.author.Dalal, Neil

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    INFLUENCE OF GAS FLOW RATES ON TRACE QUALITY AND RELIABILITY IN A SELECTED CONDUCTOR INK PRINTED WITH AN AEROSOL JET PRINTER
    (2018) Dalal, Neil; Dasgupta, Abhijit; Das, Siddhartha; Mechanical Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    Preliminary comparisons conducted between two aerosol jet printed samples, an interconnect-over-fillet specimen and baseline test coupons, revealed strong differences in surface agglomeration characteristics. These differences were subsequently found to be strongly correlated with differences in thermal cycling durability. One potential cause could be the differences in the carrier and sheath gas flow rates at which the nanoparticle ink was deposited onto the substrate during the AJP process. A parametric study was conducted to explore any relationship between gas flow rates and print quality. Serpentine test structures were aerosol jet printed at parametrically varied carrier and sheath gas flow rates. For each serpentine, its macroscale and micromorphological features were assessed as quality metrics and investigated for a potential relationship with gas flow rates. Future studies will subject these printed serpentine test structures of varying quality to thermal cycling to establish possible correlations between gas flow rate and thermal cycling durability.