Chinese semiconductor thread II

tokenanalyst

Brigadier
Registered Member

Shenzhen Jieyang Microelectronics releases the world’s smallest and lowest power UWB SoC chip​

Shenzhen Jieyang Microelectronics Co., Ltd. ("Jieyang Micro") released an industry-leading ultra-wideband (UWB) system-on-chip (SoC), model GT1500, for ranging, positioning and Wireless connectivity applications.
Not affected by network infrastructure coverage, UWB can achieve ubiquitous, fast and accurate ranging and positioning functions indoors and outdoors. In addition to its excellent ranging and positioning capabilities, UWB can also provide energy-efficient wireless connections at configurable data rates, creating new application scenarios for mobile phones, wearable devices, digital keys, tags, etc.; in access control, smart payment, Realize new consumer-oriented commercial applications in areas such as smart homes and smart cities.
Leading the industry in terms of lowest power consumption and overall performance, Jieyang Micro GT1500 chip adopts wafer-level packaging with a package size of 9 square millimeters, making it the world's smallest UWB SoC chip. GT1500 is a standard and platform UWB chip. It adopts a compact single-chip solution. It has four receiving channels, including RF, analog and baseband functions. It works closely with the embedded MCU to perform control and protocol processing. All tasks are in one chip. Completed within the chip.
GT1500 is ideally suited for space-constrained wearable devices, tags and IoT product applications, significantly reducing 3D AoA design complexity, peripheral component count and product BoM cost. The compact design allows the GT1500 to be placed close to the antenna, improving signal reception and overall UWB performance. In addition, the GT1500 significantly extends the battery life of UWB tags compared to similar products using coin cell batteries (CR2032, 235mAh). For UWB applications that require long-term standby and online operation, the longer standby time of GT1500 significantly optimizes the user experience.
GT1500 is certified by the FiRa Alliance and also complies with the Car Connectivity Consortium (CCC) Digital Key 3.0 standard.

Please, Log in or Register to view URLs content!
Please, Log in or Register to view URLs content!
 

olalavn

Senior Member
Registered Member
Huawei Technologies Co., Ltd. has applied for a project called "A SAW resonator and SAW filter", the public number is CN117581476A, the application date is November 18, 2021, and the public date is February 20, 2024

The embodiment of the present application discloses a SAW resonator and a SAW filter, which relate to the field of SAW and improve the problem in the prior art that the surface acoustic wave speed of the device is relatively high and it is difficult to meet the communication system's demand for device miniaturization. The specific solution is: the SAW resonator includes: a substrate; a first dielectric layer stacked on the substrate; a piezoelectric layer stacked on the first dielectric layer, and the material of the piezoelectric layer includes lithium niobate LiNbO3;
An electrode arranged on the piezoelectric layer; wherein the speed of the surface acoustic wave is lower than the body wave speed of the substrate, and the speed of the surface acoustic wave is lower than the body wave speed of the piezoelectric layer, and the speed of the surface acoustic wave is lower than the The body wave speed of a dielectric layer
008bIA8Nly1hn3jrypzouj30q90oiwp8.jpg
 

tacoburger

Junior Member
Registered Member
You know, in retrospect China and chinese companies really should have seen the sanctions and trade war coming. America basically pulled the exact same move on Japan, right up to putting restrictions on their semiconductor manufacturing to try and destroy Japan's high tech industries. And Japan is as much of an American vassal state as you can get.
 

AndrewS

Brigadier
Registered Member
You know, in retrospect China and chinese companies really should have seen the sanctions and trade war coming. America basically pulled the exact same move on Japan, right up to putting restrictions on their semiconductor manufacturing to try and destroy Japan's high tech industries. And Japan is as much of an American vassal state as you can get.

The Chinese government has been trying to build up domestic semiconducting manufacturing for decades, but the companies resisted.

I think that at the highest levels in the Chinese government, the "window of strategic opportunity" was long seen as lasting from 9-11 until 2020-ish.

But that there was always a fatalistic view that as China gets bigger than the US - the US would see China as a major competitor in every respect.
 

tinrobert

Junior Member
Registered Member
You know, in retrospect China and chinese companies really should have seen the sanctions and trade war coming. America basically pulled the exact same move on Japan, right up to putting restrictions on their semiconductor manufacturing to try and destroy Japan's high tech industries. And Japan is as much of an American vassal state as you can get.
It was a totally different situation with Japan than China. All about GREED. US companies were dominant in DRAM and Japanese were gaining share. Then US DRAM companies like Intel and IBM moved to steppers and yields went to zero. Japanese companies implemented steppers slowly with existing scanners and yield stayed above 80%. US had to stop Japan with stupid tactics.
China meanwhile was starting to make chips and were governed by the Wassanaar Arrangement (2 node generations back, no 300mm), but the US SEMI organisation (which puts on Semicon shows and has equipment conpanies as its members), bulked that it was unfair and sanctioned US congress to eliminate barriers. That opened the door for SMIC and others.
Now these new sanctions against China are misdirected, which I've written extensively about. They are a catalyst for China self sufficiency in chip making and equipment, but are hurting non-Chinese companies instead.
 

GiantPanda

Junior Member
Registered Member
You know, in retrospect China and chinese companies really should have seen the sanctions and trade war coming. America basically pulled the exact same move on Japan, right up to putting restrictions on their semiconductor manufacturing to try and destroy Japan's high tech industries. And Japan is as much of an American vassal state as you can get.

It is hard to confront risks when you are benefitting from the global collab and, in fact, it is often beneficial to do things that profits you until the very last moment when you are forced to change.

If China had not opened itself wholeheartly to the globalized system that came up in the early 2000s would we have a Huawei, SMIC, BYD, etc. of their stature today?

China Inc. took full advantage during that point in its technology curve when it needed foreign input in IP, parts and standards to reach the global market. I don't blame them and in fact applaud them. There are many countries where they never took advantage of that system.

The key is always when to make that transition when your position on the technology curve has matured and the IP, parts and standards should be your own.

Make in China 2025 was the government's attempt to make that transition and rectify the vulnerabilities. But not all of the private sector, especially in tech, who benefitted from the globalized system were onboard.

There is a time for everything. But often that exact time to make that big change is unclear.

The US sanctions made that transition point very clear now for everyone in China. This might be the very best time possible.
 

tphuang

Lieutenant General
Staff member
Super Moderator
VIP Professional
Registered Member
The 2023 share chart for IGBT contains several companies with a share of less than 8.3%. But the chart is in PDF. Can anyone kindly translate who the other companies are not detailed in the article?
from top to bottom are BYD, Infineon, CRRC, StarPower, ST Micro, UAES, Silan, SMEC, Onsemi, Fujitsu and others

that chart is just taking this one from NE Times. btw, this is not just IGBTs, it's for all power chips
2023_AutoPowerModulesRanking.jpg
 

tphuang

Lieutenant General
Staff member
Super Moderator
VIP Professional
Registered Member
I posted here just to show how much SMEC grew recently in auto grade IGBTs. It crushed everyone along the way, except for BYD Semi (which is just due to BYD buying everything in house)

Remind here that by end of last year, SMEC said in its investor Q&A that it is the largest auto grade IGBT production base in China
 
Top