Apple Drops BOE iPhone Displays After Discovering Unexpected Design Changes

[theorist9]

That is specific. I work in manufacturing and those are two specific examples. The thicker the substrate, the more you use, hence higher cost to manufacture.

Every manufacturing contract has clauses regarding tolerances and clients like Apple have clauses regarding parts that don't meet those tolerances. In fact, the automotive and electronics manufacturing contracts have a charge back clause in case a production line stops due to component shortage due to components being out of spec.

For electronics the guidelines are the blueprints and the Types depending on either if the component is SMT or THT.

Never mind, you don't understand my question. I'm not asking for specific examples, I'm asking what were the technical and financial ramifications of the specific unauthorized change the supplier made. I would think what I was asking was pretty, especially after I added the clarification. I don't understand why you aren't following it.

To give you an analogy, imagine a supplier to GM made an unauthorized change to the composition of the steel used in the engine block, reducing the content of chromium by 3% and increasing the nickel content by 3%, and I asked what the technical and financial ramifications of this change were. I'm looking for an answer like this (I'm just making this up, I don't know if it's true):

"This small change in the composition reduces the creep temperature from 450C to 400C. Since the internal temperature within the piston can sometimes exceed 400C, this risks deformation of the piston surfaces. The amount of creep expected with this new composition is small, so there's a good chance there would be no reduction in reliability. Nevertheless, it reduces the reliability margin. Note also that there should not be a performance difference from this change. The concern is purely reliability.

Financially, the change is curious. The market price for the new alloy is actually higher than that for the original. So likely the supplier didn't do this to save money, but rather because they were unable to obtain the originally specified alloy in sufficient quantities from their supplier."

Instead, you're giving me fluffy answers like the following, which tell me nothing about what's actually going on:

"Every manufacturing contract has clauses regarding tolerances and clients like Apple have clauses regarding parts that don't meet those tolerances. In fact, the automotive and electronics manufacturing contracts have a charge back clause in case a production line stops due to component shortage due to components being out of spec."

 

[jav6454]

Never mind, you don't understand my question. I'm not asking for specific examples, I'm asking what were the technical and financial ramifications of the specific unauthorized change the supplier made. I would think what I was asking was pretty, especially after I added the clarification. I don't understand why you aren't following it.

[...]

Specific examples of issues? We as users won't know, only the manufacturer, which in this case is Apple would know. Unless we get our hands on the specific schematics. Next time explain exactly what you want, no one can read your mind.

 

[theorist9]

Specific examples of issues? We as users won't know, only the manufacturer, which in this case is Apple would know. Unless we get our hands on the specific schematics. Next time explain exactly what you want, no one can read your mind.

I did. Please don't blame me because you can't understand plain English.

Take a look at the reply from:

https://forums.macrumors.com/threads/apple-drops-boe-iphone-displays-after-discovering-unexpected-design-changes.2343768/page-3?post=31204603#post-31204603

He didn't answer my question, but he had no problem understanding it (he understood my question well enough to acknowledge that just giving examples wasn't addressing what I was asking), indicating the question was asked clearly. So you're the only one who had a problem understanding it.

And someone with sufficient expertise would be able to explain the consequence of "expanding the circuit width of thin-film transistors". I'm just not on the right forum to be able to get those answers.

 

[jav6454]

I did. Please don't blame me because you can't understand plain English.

And somewhat with sufficient expertise would be able to explain the consequence of "expanding the circuit width of thin-film transistors".

Considering it isn't my first language, I do just fine thank you very much.

As per your second comment, The increase in width could add interference to any nearby components as the width adds extra EM waves nearby. Minuscule, but at the level of precision of an iPhone enough to cause degradation of signals.

Furthermore, the most common would be components not fitting correctly within the enclosure due to extra width provided. Apple keeps tight tolerances inside and any deviation can be noticeable during assembly. Perhaps that's how they caught it as scrap rates or QC rejections increase in manufacturing which in turn lead down a root cause analysis.

 

[theorist9]

Considering it isn't my first language, I do just fine thank you very much.

Given that it isn't your first language, you shouldn't be so quick to blame others when you can't understand them. English is my native language, but I speak one other reasonably well. If I went on a forum in that second language, and I didn't understand a question, I would have enough self-awareness about my limitations in that second language to realize the error was probably mine. I wouldn't be so foolishly arrogant as to blame the other person (as you did with me, in an obnoxious way). Just as I have humility about my second language, you need to adopt that humility when it comes to English, which is a second language for you.

I've noticed it is often challenging to communicate with you. I think this is why.

 

[jav6454]

[...]

I've noticed it is often challenging to communicate with you. I think this is why.

Last post on subject, as it might deviate the thread and get eyebrows raised by mods. If I recall correctly, you are the only person I've had difficulty understanding or making myself understandable enough. Curious, very curious.

 

[theorist9]

Last post on subject, as it might deviate the thread and get eyebrows raised by mods. If I recall correctly, you are the only person I've had difficulty understanding or making myself understandable enough. Curious, very curious.

And yet the other poster had no problems understanding my question—only you did. Curious, very curious.

Perhaps the explanation is that my posts are sometimes of a more technical or more subtle nature than is typical, and thus require a higher level of fluency in order to be understood by a non-native speaker.

Again, when I'm speaking my second language, I'm aware that certain material is simply harder for me to understand.