The pursuit of extreme thinness and lightness has always been the DNA of Apple product design, and the iPhone 17 Air takes this philosophy to new heights. However, cramming a more powerful processor, a longer-lasting battery, and a more complex thermal module into a chassis where every millimeter counts places a severe test on the supply chain's technical integration capabilities. From the stacking technology of the high-density motherboard (SLP) to the application of new materials and the precision machining of mechanical components, every step is fraught with challenges. This report will focus on how Taiwanese supply chain manufacturers are responding to the resulting technological upgrade pressures brought about by the trend towards thinness and lightness, and explore emerging business opportunities in areas such as thermal dissipation, batteries, and semiconductor packaging, exploring who will emerge victorious in this specification shift.