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Apple Uses Tiny QR Codes to Track Display Manufacturing Failures and Cut Costs
- The_suffocated 3y agoThe title and the first paragraph mention QR Code but the rest of the essay says barcode. Which is/are etched on the phones?
- cmdrk 3y agoWhat is a QR code if not a 2D barcode?
- randyrand 3y agobarcodes use vertical bars
- ThePowerOfFuet 3y agoSo confidently incorrect.
- deleted 3y ago[deleted]
- karmakaze 3y ago2D barcodes are covered in https://en.wikipedia.org/wiki/Barcode https://en.wikipedia.org/wiki/Barcode Sort of like how one might say 2D arrays.
- randyrand 3y ago> A matrix code, also termed a 2D barcode (although not using bars as such) or simply a 2D code, barcode is not the preferred term because they don't use bars. A QR code is called a matrix code.
- captn3m0 3y agoHow does it reduce the defect rate? If a supplier was throwing away 3/10 earlier, how does stamping it change it to 1/10?
- Operyl 3y agoMy guess, based on reading a few different copies of the article from different venues (since the information is a massive paywalled publication I do not want to pay 50 bucks a month for) is that the two companies were falsifying reports of defected glass to Apple to inflate costs to the company. They are responsible for shaping the raw glass from Corning into usable components. Once Apple started serializing the glass itself, this number suddenly dropped. Another theory is that they were stating the glass was faulty, when it wasn’t, and selling the glass to the gray market for 3rd party repairs. If they have to report serial numbers for faulty glass now, that makes it a whole lot easier to trace back to the specific vendor defrauding apple. https://appleinsider.com/articles/23/09/29/every-iphone-screen-has-a-barcode-to-prevent-a-manufacturing-scam https://appleinsider.com/articles/23/09/29/every-iphone-scre...
- candiodari 3y agoWell it allows you to see exactly which glass failed, and trace the failure. This leads to actually knowing why things fail, which leads to bugfixes, so to speak (the general term in engineering is "process improvements"), which leads to better success rates.