MacBook Pro 15" Touch Bar 2019 Teardown
https://www.ifixit.com/Teardown/MacBook+Pro+15-Inch+Touch+Bar+2019+Teardown/123653
https://www.youtube.com/watch?v=cJJQPY3g8zQ
Whereas the membrane in the 2018 MacBook Pro is "semi-opaque" and "feels like silicone," iFixit says the cover in the 2019 model is "clearer and smooth to the touch." Based on infrared analysis, it appears the 2018 membrane was made with polyacetylene, while the 2019 covers uses polyamide, aka nylon.
iFixit also found that the metal dome over each key switch is "subtly different" as well. "It could be a new surface treatment, and/or a tweaked alloy, possibly to alleviate problems with durability, bounce-back, or other issues," they said.
簡單總結:
KB入面塊半透明矽膠膜改左料做全透
側面黑色嗰粒複合纖維改做普通尼龍
上面粒金屬拱掣改左合金成份/coating
其他形狀,大細,厚度不變
另外關於壞KB換KB program:
https://www.theverge.com/2019/5/21/18634247/macbook-butterfly-keyboard-problems-apple-repair-new-materials
Some current MacBook Pro 13-inch with Touch Bar and 15-inch customers that bring in their keyboards for repair will actually have their keyboards replaced with ones that have these new materials, Apple says. That will only happen for
MacBooks that have the third-generation butterfly keyboard today: the 2018 models of the MacBook Pro and the new MacBook Air.
淨係碟3既MacBook Air/Pro先有可能維修嗰時換新物料KB