Apple Uses Tiny QR Codes to Track Display Manufacturing Failures and Cut Costs
Apple etches iPhone displays with small QR codes that let it precisely track the number of defective screens that are thrown out by suppliers, according to a new report from The Information.
One barcode is the size of a grain of sand and can be viewed only with special equipment, while the other is on the inside of the display along the bezel. Apple spent millions of dollars developing the barcode process and installing laser scanning equipment at Lens Technology and Biel Crystal, two manufacturers that make the iPhone's cover glass.
With this system, Apple has a precise count of every piece of glass produced by Lens and Biel, and an exact read on how much material is wasted due to defects. A source that spoke to The Information said that when the barcodes were first implemented, Apple found that as many as three out of 10 pieces of cover glass were thrown away due to manufacturing errors, and with pressure from Apple, the suppliers have been able to cut that down to one in 10. Because Apple pays for production, lowering error rates has saved it hundreds of millions of dollars.
Apple has used the display barcodes to streamline manufacturing since 2020, and the company is able to see which company made the glass and the date it was manufactured for tracking production level and yield rate. Other iPhone components have had small barcodes to trace defects or find the source of leaks for many years, but prior to the display system, barcodes were primarily used for metal parts.
The Information's full report goes into more detail on the barcode, including the complex, multi-step process that Apple uses to get the barcodes onto the displays.
Popular Stories
In his Power On newsletter today, Bloomberg's Mark Gurman outlined some of the new products he expects Apple to announce at its "Let Loose" event on May 7. First, Gurman now believes there is a "strong possibility" that the upcoming iPad Pro models will be equipped with Apple's next-generation M4 chip, rather than the M3 chip that debuted in the MacBook Pro and iMac six months ago. He said a ...
There are widespread reports of Apple users being locked out of their Apple ID overnight for no apparent reason, requiring a password reset before they can log in again. Users say the sudden inexplicable Apple ID sign-out is occurring across multiple devices. When they attempt to sign in again they are locked out of their account and asked to reset their password in order to regain access. ...
Apple is set to unveil iOS 18 during its WWDC keynote on June 10, so the software update is a little over six weeks away from being announced. Below, we recap rumored features and changes planned for the iPhone with iOS 18. iOS 18 will reportedly be the "biggest" update in the iPhone's history, with new ChatGPT-inspired generative AI features, a more customizable Home Screen, and much more....
Bloomberg's Mark Gurman today said that iOS 18 will "overhaul" many of Apple's built-in apps, including Notes, Mail, Photos, and Fitness. Gurman did not reveal any specific new features planned for these apps. It was previously rumored that the Notes app will gain support for displaying more math equations, and a built-in option to record voice memos, but this is the first time we have...
New iPads are coming, and Apple is holding a virtual event to introduce them! While it appears likely to be a relatively short video event, we should be seeing new iPad Pro and iPad Air models, some new accessories, and perhaps some additional surprises. Other Apple news and rumors this week included word that Apple is FINALLY planning to introduce a native Calculator app for the iPad later...
On this week's episode of The MacRumors Show, we discuss the announcement of Apple's upcoming "Let loose" event, where the company is widely expected to announce new iPad models and accessories. Subscribe to The MacRumors Show YouTube channel for more videos Apple's event invite shows an artistic render of an Apple Pencil, suggesting that iPads will be a focus of the event. Apple CEO Tim...
Top Rated Comments
https://en.wikipedia.org/wiki/Data_Matrix
"The most popular application for Data Matrix is marking small items, due to the code's ability to encode fifty characters in a symbol that is readable at 2 or 3 mm2 (0.003 or 0.005 sq in) and the fact that the code can be read with only a 20% contrast ratio.[1] ('https://en.wikipedia.org/wiki/Data_Matrix#cite_note-1') A Data Matrix is scalable; commercial applications exist with images as small as 300 micrometres (0.012 in) (laser etched on a 600-micrometre (0.024 in) silicon device) and as large as a 1 metre (3 ft) square (painted on the roof of a boxcar ('https://en.wikipedia.org/wiki/Boxcar')). Fidelity of the marking and reading systems are the only limitation. The US Electronic Industries Alliance ('https://en.wikipedia.org/wiki/Electronic_Industries_Alliance') (EIA) recommends using Data Matrix for labeling small electronic components.[2] ('https://en.wikipedia.org/wiki/Data_Matrix#cite_note-Stevenson-2')"
Apple execs prob have barcodes, too.
These "waste" may end up being sold as spare parts for unauthorized repairs or be used to manufacture fake iPhones that runs Android skinned with iOS UI & a 30nm SoC.
These fake iPhones proliferate poor nations with weak IP law implementations.
25 years ago LCD TVs sold at $15,000 ('https://www.zdnet.com/article/flat-tv-big-price/').
Today it is under $150.
The price became that low when production yield became that perfect.