Chinese semiconductor thread II

huemens

Junior Member
Registered Member
That is only if UK is not banning like the US. If arm v9 is essential for the success for Huawei, US will make UK to ban it.
Hence, the ISA license. Read again what I said. Huawei's purchase of ISA license, benefits both Huawei and ARM in the case ARM is blocked from selling anything to Huawei in the future. For Huawei they can just keep on designing and making ARM cores without resorting to a new architecture. For ARM it ensures they keep getting royalty from Huawei and helps prevent/slowdown the introduction of a competing ISA from Huawei.
 

antiterror13

Brigadier
The license suspension is still a serious medium term issue for Huawei. They can’t develop any chips that use any ARMv9 instructions so they’re essentially frozen at their current version of ARM. They could choose to extend the instruction set with their own new version but in the longer term will probably need to switch to RISC-V.

Apple just recently moved to ARMv9 (rumour) with M4
 

antiterror13

Brigadier
Hence, the ISA license. Read again what I said. Huawei's purchase of ISA license, benefits both Huawei and ARM in the case ARM is blocked from selling anything to Huawei in the future. For Huawei they can just keep on designing and making ARM cores without resorting to a new architecture. For ARM it ensures they keep getting royalty from Huawei and helps prevent/slowdown the introduction of a competing ISA from Huawei.

Please educate me what is the difference of ISA license and ARMv8 or v9 license?
 

huemens

Junior Member
Registered Member
Please educate me what is the difference of ISA license and ARMv8 or v9 license?
ISA license allows you to design your own ARM core, which is what Apple has been doing all this time and what Huawei is doing now. If you buy permanent ISA license you pay a huge upfront fee to ARM then pays a very small royalty per chip you produce. The other type of license is where you license a pre-designed core from ARM, which is what Qualcomm has been doing for Snapdragon. Qualcomm does have an ISA license but they didn't use it until very recently, when they released their own core for their latest laptop CPU. Licensing Cores means you pay a smaller upfront fee (or may be none) but has to pay a bigger cut per chip. The SoC vendors that relies on ready-made Cores from ARM now use v9 (like Snapdragon and Mediatek) because that's what ARM's newest cores use. The vendors who design own cores, like Apple and Huawei (even the latest Qualcomm's own core) still use v8, mostly because there's no urgent need for v9 on mobile SoC. What v9 adds on top of v8 is mostly to do with AI, and all of these vendors have their own dedicated AI cores to take care of it.
 
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curiouscat

Junior Member
Registered Member
ISA license allows you to design your own ARM core, which is what Apple has been doing all this time and what Huawei is doing now. If you buy permanent ISA license you pay a huge upfront fee to ARM then pays a very small royalty per chip you produce. The other type of license is where you license a pre-designed core from ARM, which is what Qualcomm has been doing for Snapdragon. Qualcomm does have an ISA license but they didn't use it until very recently, when they released their own core for their latest laptop CPU. Licensing Cores means you pay a smaller upfront fee (or may be none) but has to pay a bigger cut per chip. The SoC vendors that relies on ready-made Cores from ARM now use v9 (like Snapdragon and Mediatek) because that's what ARM's newest cores use. The vendors who design own cores, like Apple and Huawei (even the latest Qualcomm's own core) still use v8, mostly because there's no urgent need for v9 on mobile SoC. What v9 adds on top of v8 is mostly to do with AI, and all of these vendors have their own dedicated AI cores to take care of it.
All the high end Qualcomm chips from 2021 going forward (I.e. Snapdragon 8 Gen 1) switched to ARMv9. I believe after Apple switches Huawei will be the only major arm licensee still on ARM v8. I’m not sure if Huawei actually has a license for ARM v9. I’ve heard some rumblings that although they technically could license it to Huawei they’ve avoided doing so to avoid further US pressure.
 

huemens

Junior Member
Registered Member
All the high end Qualcomm chips from 2021 going forward (I.e. Snapdragon 8 Gen 1) switched to ARMv9. I believe after Apple switches Huawei will be the only major arm licensee still on ARM v8. I’m not sure if Huawei actually has a license for ARM v9. I’ve heard some rumblings that although they technically could license it to Huawei they’ve avoided doing so to avoid further US pressure.
That isn't necessarily because Qualcomm wanted to switch to v9. As I said if you license any of the latest pre-designed cores from ARM that's what you are going to get by default. You can find v9 even in budget phones. In fact the small core used on Huawei's Kirin 9000s is a v9 core because that's a licensed Cortex core. So technically you could say that Huawei is already using v9 (just not in their own cores). Qualcomm used to use ARM's Coretex cores in both their Smartphone and Laptop SoC's. They just designed their own core called Oryon and released their latest laptop CPU with it. It is v8. In future they are likely to use Oryon even in mobile SoC's. If they do that would you call it a "downgrade" just because they use v8 instead of v9.
 
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LanceD23

Junior Member
Registered Member
How the heck they generate EUV with this little setup? It doesn't have the room sized high power laser to zap the droplet.
I think they talk about the control and regulate the already generated EUV among the others rather than generation. But where they got their EUV from?

on another news, first 5 months, IC export value is bigger than car or Smart phones.
I wonder whether samsung or hynix fabs in China are biggest producers and count as export from China?

出口方面,前5个月,中国出口机电产品5.87万亿元,增长7.9%,占出口总值的59%。其中,自动数据处理设备及其零部件5544.6亿元,增长9.9%;集成电路4447.3亿元,增长25.5%;汽车3297亿元,增长23.8%;手机3296.8亿元,下降2.8%。



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LanceD23

Junior Member
Registered Member
Actually, from the comment area on that original bilibili video(which has been deleted now). Someone mentioned that the single expose area of ASML is about 6 times of that kirin9010 die area,and one expose only requires one alignment mark,so six dies only require one alignment mark. So it is possible that the die he is got,just happen to be the one without alignment mark,and the video creator agree with this speculation.

Based on that reasoning majority of older Huawei Mate 60 dies would also lack of ASML markings or any markings at all and only few would have it.

That's very iffy to me. Each die should have its own unique identifier in some ways or forms.
 

pbd456

Junior Member
Registered Member
Based on that reasoning majority of older Huawei Mate 60 dies would also lack of ASML markings or any markings at all and only few would have it.

That's very iffy to me. Each die should have its own unique identifier in some ways or forms.
The pattern is for overlay support for multiple pattern, it is not necessary that the marker is present in every single chip unless the exposure is 1 per chip.
 
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