Why Apple Left Samsung for TSMC: The Journey of iPhone Processors

With better yield rates, cutting-edge FinFET technology, and smaller process nodes, TSMC helped Apple push the limits of mobile performance and efficiency.

Introduction

Apple’s quest for the most powerful smartphone chips has been a journey of bold decisions and strategic shifts. While Samsung initially manufactured Apple’s iPhone processors, a turning point came in 2014 when Apple began working with TSMC.

This transition was not just about switching suppliers—it was about securing the future of mobile performance. With TSMC’s advanced chip manufacturing, Apple pushed the boundaries of efficiency, battery life, and processing power.

Today, TSMC exclusively produces Apple’s A-series chips, giving iPhones a technological edge over competitors.

But why did Apple leave Samsung, and how did TSMC rise to dominate the semiconductor industry? Let’s dive into the story.

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Quick Overview

Intel’s Missed Opportunity – Before partnering with Samsung, Apple approached Intel to manufacture iPhone processors, but Intel declined, believing the smartphone market was too small.

Samsung’s Early Role – Samsung manufactured Apple’s processors from the first iPhone until 2014, but challenges arose in performance, efficiency, and yield rates.

TSMC Enters the Game – Apple started working with TSMC in 2014 with the A8 chip and fully transitioned by 2016.

FinFET Revolution – TSMC’s superior FinFET (Fin Field-Effect Transistor) technology helped Apple improve power efficiency and performance.

Exclusive Partnership – Today, Apple relies solely on TSMC, benefiting from its cutting-edge manufacturing process, including the latest 3nm chips.

techovedas.com/why-tsmc-is-teaming-up-with-u-s-chip-giants-for-intels-foundry-future

The Samsung Era (Pre-2014)

Apple’s First Choice: Samsung

After Intel declined to manufacture Apple first iPhone processors, Apple turned to Samsung. At the time, Samsung was one of the few companies with the expertise to produce high-performance smartphone chips.

Samsung’s Manufacturing Process

  • Early Process Nodes – Apple’s first processors were made using Samsung’s 65nm and 45nm technologies. These were large, power-hungry chips, but they were sufficient for the early iPhone models.
  • Advancements Over Time – Apple and Samsung gradually moved to smaller nodes, reaching 32nm for the iPhone 5’s A6 processor in 2012.
  • Performance Limitations – While Samsung was a reliable manufacturer, challenges arose as Apple demanded more efficient chips with better power management.

The TSMC Shift (2014-Present)

The Turning Point: A8 and A9

In 2014, Apple decided to split its A8 chip production between Samsung and TSMC. This gave Apple a direct comparison of the two manufacturers. TSMC’s 20nm process delivered better efficiency and higher yield rates, setting the stage for a long-term partnership.

By 2015, Apple moved the A9 chip production mostly to TSMC’s 16nm FinFET process, marking the official transition away from Samsung.

techovedas.com/apples-c1-modem-the-beginning-of-the-end-for-qualcomm

Why Apple Chose TSMC

Better Yield Rates – TSMC consistently provided higher usable chip yields per wafer, reducing costs for Apple.

FinFET Technology – TSMC’s FinFET transistors offered better power efficiency, crucial for battery life in iPhones.

Smaller Process Nodes – TSMC aggressively moved to smaller nodes, allowing Apple to develop faster, more efficient chips.

Exclusive Partnership – Unlike Samsung, which also makes chips for competitors, TSMC prioritized Apple’s needs.

Custom Optimization – Apple and TSMC worked closely to optimize chip designs, resulting in industry-leading performance.

Apple’s A-Series Evolution with TSMC

YearChipProcess NodeKey Advancement
2014A820nmFirst Apple-TSMC chip
2015A916nm FinFETMore efficient and faster
2016A10 Fusion10nmImproved battery life
2018A12 Bionic7nmFirst 7nm smartphone chip
2020A14 Bionic5nmMajor power efficiency gains
2022A16 Bionic4nmIncreased performance per watt
2023A17 Pro3nmLeading-edge efficiency and power

The Future: Apple & TSMC’s Growing Partnership

Apple’s exclusive reliance on TSMC highlights the foundry’s dominance in chip manufacturing. As Moore’s Law slows down, Apple will continue working with TSMC to push the boundaries of mobile computing.

With the 2nm process node expected by 2025, Apple is set to maintain its lead in smartphone performance and power efficiency. Meanwhile, Intel and Samsung are still struggling to match TSMC’s process technology, proving Apple made the right call by choosing Taiwan’s chip giant.

techovedas.com/the-journey-of-iphone-processors-why-apple-left-samsung-for-tsmc

Conclusion

Apple’s decision to leave Samsung for TSMC was a turning point in chip manufacturing. By choosing a partner with cutting-edge technology and better efficiency, Apple secured its lead in smartphone performance. As TSMC moves toward 2nm and beyond, this partnership will continue to redefine mobile computing.

The chip market is shifting, and now is the time to ride the wave of change! For expert insights and strategies in the semiconductor space, trust Techovedas to keep you ahead of the curve!

Kumar Priyadarshi
Kumar Priyadarshi

Kumar Joined IISER Pune after qualifying IIT-JEE in 2012. In his 5th year, he travelled to Singapore for his master’s thesis which yielded a Research Paper in ACS Nano. Kumar Joined Global Foundries as a process Engineer in Singapore working at 40 nm Process node. Working as a scientist at IIT Bombay as Senior Scientist, Kumar Led the team which built India’s 1st Memory Chip with Semiconductor Lab (SCL).

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