Chinese semiconductor thread II

measuredingabens

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120 GOPS Photonic tensor core in thin-film lithium niobate for inference and in situ training​

Abstract​

Photonics offers a transformative approach to artificial intelligence (AI) and neuromorphic computing by enabling low-latency, high-speed, and energy-efficient computations. However, conventional photonic tensor cores face significant challenges in constructing large-scale photonic neuromorphic networks. Here, we propose a fully integrated photonic tensor core, consisting of only two thin-film lithium niobate (TFLN) modulators, a III-V laser, and a charge-integration photoreceiver. Despite its simple architecture, it is capable of implementing an entire layer of a neural network with a computational speed of 120 GOPS, while also allowing flexible adjustment of the number of inputs (fan-in) and outputs (fan-out). Our tensor core supports rapid in-situ training with a weight update speed of 60 GHz. Furthermore, it successfully classifies (supervised learning) and clusters (unsupervised learning) 112 × 112-pixel images through in-situ training. To enable in-situ training for clustering AI tasks, we offer a solution for performing multiplications between two negative numbers.
 

ansy1968

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I'm surprise Nobody post this article, it's a very important and significant news, breaking Japan monopoly and a stepping stone for EUV photoresist in 2025 in conjunction with the prototype machine.


Recently, Wuhan Taiziwei Optoelectronics Technology Co., Ltd. in China launched its T150 A photoresist product, which has successfully passed mass production validation for semiconductor processes. With a fully self-designed formula, this achievement is expected to pave the way for a new era in China’s domestic semiconductor lithography manufacturing.

The T150 A product is benchmarked against the mainstream KrF photoresist series from leading international companies. Compared to the widely recognized UV1610 product in the same series, the T150 A demonstrates an extreme resolution of 120nm during the lithography process, offers greater process tolerance, higher stability, and excellent film retention after post-baking

Additionally, it is more compatible with subsequent etching processes. Validation revealed that dense patterns made with T150 A exhibit outstanding verticality of sidewalls in the underlying dielectric after etching.

Industry insiders have commented that, among KrF series photoresist products, the UV1610 product, which T150 A is benchmarked against, is considered a “commonly used resist” with high demand. Currently, Chinese manufacturers such as Beijing Kehua and Xuzhou Bokang have the capability to produce UV1610.

Currently, China’s semiconductor photoresist, especially for high-end products, is still heavily reliant on imports, with Japan being China’s largest source of photoresist imports.


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Recently, Wuhan Taiziwei Optoelectronics Technology Co., Ltd. in China launched its T150 A photoresist product, which has successfully passed ...
 

lc_survivor

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If they have old stockpiles they are going to use it for something. Or it may very well be that they decided to get it re-fabbed by SMIC. We will only know after TechInsights does analysis of the Chip. Now they did only a phone tear-down. The most likely scenario is old stockpiles, because it doesn't have the new Taishan cores they are using in all new SoCs fabbed with SMIC.

Here's the TechInsights report on Mate XT
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The spec listed in the Techinsight article appears to be that of the Mate XS released in 2020. The article said the Mate XT features an 8-inch flexible OLED display, but according to Huawei the Mate XT fully unfolded is 10.2 inches. The ram size listed by the article is 8GB but the official spec listed it as 16GB. The description of the camera system, the battery capacity and charging speed stated in the article for the Mate XT is all different from the specs released by Huawei.
 

huemens

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The spec listed in the Techinsight article appears to be that of the Mate XS released in 2020. The article said the Mate XT features an 8-inch flexible OLED display, but according to Huawei the Mate XT fully unfolded is 10.2 inches. The ram size listed by the article is 8GB but the official spec listed it as 16GB. The description of the camera system, the battery capacity and charging speed stated in the article for the Mate XT is all different from the specs released by Huawei.

You are right. The spec doesn't match. XT doesn't have an 8GB version. All 3 versions of XT has 16GB RAM. The differences are in storage 256 GB / 512 GB / 1 TB.
So the chip also must be wrong. Also it turns out Kirin 980 was actually a 4G chip.

This looks like a big mixup. The photos TechInisights posted are also from XT.
huawei-mate-xt-battery.jpg

They even tweeted this today
techinsights-xt-2024-10-23.jpg
 
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huemens

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TechInsights Mate XT article has this picture. The file name is "huawei-mate-xt-kirin-980.jpg" and it is captioned "Huawei Mate XT Teardown - Kirin 980 Processor".

The picture is blurry, but if you zoom in the markings looks like HI36A0 GFCV121 , which is Kirin 9010. So looks like TechInsights blundered this article big time.

huawei-mate-xt-kirin-980.jpg
 

lc_survivor

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Whoever wrote the article may have mis typed Mate XT to Mate XS when searching for specs.
TechInsights Mate XT article has this picture. The file name is "huawei-mate-xt-kirin-980.jpg" and it is captioned "Huawei Mate XT Teardown - Kirin 980 Processor".

The picture is blurry, but if you zoom in the markings looks like HI36A0 GFCV121 , which is Kirin 9010. So looks like TechInsights blundered this article big time.

View attachment 137666
 

tphuang

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yes, this seems like very strange article by TechInsights. Maybe they couldn't afford a Mate XT and teared down an old phone instead.

As for the Ascend article, it is likely an old stocked up chip
 

LanceD23

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techinsights, the crowning jewel of Canada technology company, and specialized in reverse engineering.

some predicts ASML market share in China in 2025 would be close to 0% for new systems because even most basic duvi requires approval for sale and services
and with China already producing dry arf and krf there's no need for ASML anymore in 2025.
 

huemens

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Not specifically about Chinese semiconductor, but I feel this is relevant here, because it is an Architectural License like what Huawei has.

Arm Holdings to cancel Qualcomm chip design license, Bloomberg News reports​

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Arm Holdings is cancelling an architectural license agreement that allows Qualcomm (QCOM.O), opens new tab to use intellectual property to design chips, Bloomberg News reported on Tuesday, amid an ongoing legal battle between the two companies.
Arm has given Qualcomm a mandated 60-day notice of the cancellation of the licensing agreement, the report said, adding that the contract allows Qualcomm to create its own chips based on standards owned by Arm.
Qualcomm's statement:
"This is more of the same from ARM – more unfounded threats designed to strongarm a longtime partner, interfere with our performance-leading CPUs, and increase royalty rates regardless of the broad rights under our architecture license," a Qualcomm spokesperson said in an emailed statement.
"With a trial fast approaching in December, Arm's desperate ploy appears to be an attempt to disrupt the legal process, and its claim for termination is completely baseless. We are confident that Qualcomm's rights under its agreement with Arm will be affirmed. Arm's anticompetitive conduct will not be tolerated."

Previously Qualcomm used to license off-the-shelf cores from ARM. Ever since Qualcomm launched it's own Oryon core, ARM has been fighting with Qualcomm, trying to get the ISA license suspended. The case is already filed in court and Qualcomm claims the ISA license cannot be cancelled.

The thing is ARM makes less recurring revenue from ISA level licensees. Per-chip royalties are much higher for Cores-license and Qualcomm accounts for a big chunk of it. Qualcomm had already switched to own core on Laptop and is going to switch it for smartphones soon. If that happens ARM will lose a big chunk of their revenue.

** It turns out this license was actually given to another company (Nuvia). Qualcomm got possession of it as part of Nuvia, when it acquired Nuvia in 2021. So the circumstances are different from Huawei. There may be clauses in the agreement which prevents transfer of license through M&A.
 
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