China, June 25, 2018-STMicroelectronics (ST; NYSE code: STM) is accelerating the development of mobile networks to a more convenient and secure interconnected world, becoming the first company to pass the GSMA Association An eSIM manufacturer that is certified and approved to pre-install a certificate and operator profile and other connection credentials before the embedded SIM (eSIM) chip leaves the factory.

The customized eSIM specially designed for pre-installed connection credentials has a smaller size, higher security and flexibility, chip-level packaging, permanent embedded, and reprogrammable, which can save the internal space of the smart phone, and the free space can increase the phone It can also be used to develop various types of small and compact IoT devices to meet the needs of smart watches and Internet of Things (IoT) devices that are expanding in market size and application range, including smart meters and remote sensors. Or gateway, etc.

On the basis of the existing certification of manufacturing eSIM chips that comply with the GSMA security and reliability specifications, STMicroelectronics has followed the GSMA’s UICC Production Safety Certification Program (GSMA SAS-UP), leading other chip manufacturers to obtain eSIM personalization Data security application certificate.

ST is approved to provide eSIM services to mobile and IoT vendors

ST's eSIM is based on the proven ST33 secure microcontroller, which has completed the personalized process and can be directly delivered to the customer's production facility for immediate online assembly without further programming. eSIM can simplify the supply chain, save logistics costs, shorten time to market, and bring greater convenience, economic benefits and operating efficiency to original equipment manufacturers, mobile network operators and SIM operating system (OS) manufacturers.

Jean-Christophe TIsseuil, Head of SIM and eSIM Business of GSMA Association, said: "The ST-Rousset (France) factory has obtained SAS-UP certification and provides personalized services for WLCSP SIM and eSIM chips. This is an important action to promote the popularization of trusted eSIM equipment. , Enabling manufacturers of consumer products and IoT devices to implement very small eSIMs. SAS-UP is the first step to deploy a secure and reliable eSIM in the market."

Marie-France FlorenTIn, Vice President and General Manager of the Secure Microcontroller Division of STMicroelectronics, said: "eSIM is an important technological advancement that allows us to securely build the connected world of the future. GSMA's eSIM manufacturing and personalized certification The plan is the key to the success of eSIM. Now, ST has obtained the certification of eSIMs manufacturing and personalized service before leaving the factory, which will improve the efficiency and security of the entire supply chain. Customers will benefit from it and get all the guarantees of the GSMA ecosystem And guarantee."

Miner Accessories


Immersion Cooling is a technique used to cool components of IT equipment that consists of submerging the computer components in a thermally conductive and dielectric liquid. Through this practice, the servers are cooled and heat is transferred from the source to the liquid.

When we talk about Immersion Cooling, we also need to discuss the different types of Immersion Cooling, as well as the applications of Immersion cooling. The practice of Immersion Cooling has a multitude of benefits particularly as it allows datacenters to be managed in a greener and more sustainable manner. Environmental concerns has been a huge catalyst for the adoption of the technology in recent years.


With Immersion Cooling the heat is transferred directly from the heat source to the working fluid. In [watercooling" the working fluid is potentially harmful to electronics and thus flows through a sealed loop isolated from the heat source. A watertight waterblock is used to indirectly transfer the heat from the heat source to the working fluid. With Immersion Cooling the working fluid must be non-conductive and that generally limits us to four families of fluids:

deionized water
mineral oil
fluorocarbon-based fluids
synthetic
Immersion Cooling systems used to have a higher fluid cost than water cooling, but this is already changing.

A wide variety of liquids exist for this purpose, the most suitable being transformer oils and other electrical cooling oils. Non-purpose oils, including cooking, motor and silicone oils, have been successfully used for cooling personal computers


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Shenzhen YLHM Technology Co., Ltd. , https://www.ylhm-tech.com

May 14, 2023