"Apple's latest MacBook Pro is the fastest, but has an optional eight-core processor – the first in a MacBook and a mysterious new keyboard material," iFixit writes. "Since Apple is unlikely to explain this material," and we are never satisfied with an unresolved mystery, it is time to take a closer look at the infamous butterfly keyboard. "
" Having debuted in the 2015 retina MacBook, landed the butterfly keyboard on the MacBook Pro line for the first time in 2016, writes iFixit. "Designed to be super thin while receiving off-center key presses, the keyboard turned out to be controversial because of the extremely short throw ̵
"In the summer of 2018, Apple launched a repair program, privately blamed the keys for keys – and released updated models with silicone membrane that protects the key switches. But problems have persisted, iFixit writes." The 2019 butterfly switch revision keeps the silicone membrane, but tweaks the materials. in the springy metal dome and the plastic material covering it. "
" So, what changed this year? First, the transparent switch covers the material. The cover in the 2018 model is semi-opaque, slightly sticky and feels like silicone. The new model is clearer and smoother to touch, writes iFixit. "To confirm that the materials are different, we analyzed them using Fourier Transform Infrared (FTIR) spectroscopy. The closest match for the 2018 model is polyacetylene with aromatic urethane side groups, while the 2019 model uses polyamide (commonly known as nylon) "" 19659002] "What has changed? We think the metal dome switch may have," writes iFixit. "The difference in surface finish from the 2018 version (left) to 2019 (right) indicates that Apple may use a revised heat treatment, or alloy, or possibly both."
Much more, including many pictures of components (on the keyboard and beyond) in full teardown here.
MacDailyNews Take: We're still left with the question:
Liquidmetal? Apple has changed the material in its new, fourth genes. butterfly keyboards and expect the problems to be significantly reduced. Apple US Patent (10,056,541) relates, inter alia, to bulk metallic glass in the manufacture of keyboards. #Liquidmetal https://t.co/6HAGEvhvPa
– MacDailyNews (@MacDailyNews) May 21, 2019
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