Samsung, who supplied Apple with a Flip Chip Ball Grid Array for M1 Processors is working on a second generation chip for the M2
In late February, Patently Apple posted a report titled "Apple Supplier LG Innotek plans to produce High-End Flip-Chips in 2023 likely aimed for Apple's M-Series Processors." Our report revealed that Samsung Electro-Mechanics has been Apple's number one source for the M1 Chip's flip-chip ball grid array (FC-BGA). Although LG Innotek will be attempting to earn business from Apple for flip-chip ball grid array for 2023-24, it appears that Samsung will be supplier this type of chip for Apple's next-gen M2 processor.
Source: patentlyapple.com