TSMC 3nm yield reportedly just 55%, Apple only paying for qualified circuits

Re:TSMC 3nm yield reportedly just 55%, Apple only paying for... by vGPU on Saturday July 29, 2023 @10:39PM (#36927277)

Achieving 60% yield on the first GAAFET node in the entire industry is a pretty big accomplishment for Samsung.

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Re:TSMC 3nm yield reportedly just 55%, Apple only paying for... by brucethemoose2 on Saturday July 29, 2023 @10:48PM (#36927325)

TSMC was "conservative" transitioning to finfet and such, and this caution served them well.

But maybe the particular decision to wait on gaafet is biting them in the butt.

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Re:TSMC 3nm yield reportedly just 55%, Apple only paying for... by ksec on Sunday July 30, 2023 @12:12AM (#36927735)

Yield % in Samsung and TSMC are pointing to different things. And knowing Samsung and TSMC, the first may have overstated while the latter may give you a conservative number.

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Re:TSMC 3nm yield reportedly just 55%, Apple only paying for... by GeekyBear on Sunday July 30, 2023 @03:32AM (#36928762)

Samsung's initial 4nm yield was said to be particularly bad.

> It is being reported that Samsung Foundry’s yields for 4nm Snapdragon 8 Gen 1 chips are very low at just 35%.

https://www.sammobile.com/news/samsung-foundry-4nm-yield-sna...

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Re:TSMC 3nm yield reportedly just 55%, Apple only paying for... by brucethemoose2 on Sunday July 30, 2023 @03:58AM (#36928901)

And those were relatively small dies.

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