Common nanotechnology processes and manufacturers of RFID chips

RFID (Radio Frequency Identification) technology has become an indispensable part of the modern production and logistics industry. RFID chip is one of the key components to implement RFID technology. It can Store and transmit data, providing feasible solutions for many application scenarios. In this article, we will explore the common manufacturing processes and manufacturers of RFID chips.

The common RFID chip nm process scales currently on the market mainly include:

180nm process, 110nm process, 90nm process, 65nm process.

180nm process. The 180nm process is currently the most widely used RFID chip process scale and is suitable for low frequency (LF), high frequency (HF) and some UHF (Ultra High-Frequency) RFID chips. Compared with the 350nm process, the 180nm process has higher integration, smaller size, larger chip capacity, more mature process control, and more stable performance.

110nm process. The 110nm process has been one of the mainstream RFID chip process scales in recent years and can be used to manufacture high-frequency (HF) and UHF (Ultra High-Frequency) RFID chips. The process is characterized by smaller size, lower power consumption, faster speed, larger capacity, and higher security and stability. However, due to higher manufacturing costs, the price of its chips will increase accordingly compared with 180nm process chips.

90nm process. The 90nm process is currently one of the advanced process scales in RFID chip manufacturing and is mainly used to manufacture high-end UHF (Ultra High-Frequency) RFID chips. The chips produced by this process have higher integration, smaller size, higher chip capacity and speed, can provide stronger security and privacy protection, and can be applied to more application scenarios.

65nm process. The 65nm process is the latest process scale for RFID chips and is an advanced process technology. Compared with the 110nm and 90nm processes, the 65nm process has smaller size, higher speed, lower power consumption and higher integration. It can provide more functions and richer application scenarios in Intelligent transportation and logistics. It has broad application prospects in , retail and other fields.

So, what kind of photolithography machine is used to make RFID chips? RFID chips do not have high requirements for advanced nanometer processes because their functions are simple. Unlike the high-precision chips used in graphics cards and mobile phones, they are relatively simple chip types. Therefore, the lithography machines commonly used in RFID chip manufacturing are mainly traditional NL lithography machines and DUV lithography machines. The traditional NL lithography machine is a lithography machine commonly used in semiconductor wafer manufacturing. It uses an ultraviolet light source to illuminate the semiconductor wafer to form a chip-specific pattern of photoresist through the light-transmitting part in the photomask. This kind of lithography machine is suitable for larger size and low resolution chip manufacturing. The DUV (Deep Ultraviolet Light) lithography machine uses shorter wavelength light, which can provide higher resolution and smaller feature size. DUV lithography machines can be used to manufacture high-density, high-precision and high-reliability RFID chips.

wafer

Now, there are many RFID chip manufacturers on the market.

NXP Semiconductor: NXP Semiconductor is one of the world's leading RFID chip suppliers, and the company has a high market share in the market. NXP's RFID chips cover low frequency (LF), high frequency (HF) and ultra high frequency (UHF) chips. The earlier process scales were 350nm and 180nm, and now the company's mainstream production scales are 90nm and 65nm. Its chip specifications and functions are very comprehensive, including low frequency (LF), high frequency (HF) and ultra high frequency (UHF) RFID chips, suitable for various application scenarios.

Texas Instruments (TI): Texas Instruments is a leading semiconductor design and manufacturing company that occupies an important position in the field of RFID chips. The RFID chips produced by TI cover low frequency (LF), high frequency (HF) and ultra-high frequency (UHF), and include many hybrid application solutions. Its initial process scale is 180nm, and its current main process scales are 90nm and 65nm.

Lithography

Impinj: Impinj is a company that specializes in providing UHF RFID solutions and is also a leader in the UHF chip market. Impinj's RFID chips can be applied to projects involving large-scale infrastructure, supply chain, logistics and other fields. Impinj mainly uses CMOS technology, and its process scale is mainly 130nm process and 90nm process.

Fudan Microelectronics. It is one of the well-known semiconductor design companies in China, focusing on the research and development, design and manufacturing of microchips and microelectronic systems. The company has accumulated rich semiconductor manufacturing technology and experience over nearly 30 years. At present, the main nm processes used by Fudan Microelectronics in RFID chips are 65nm and 130nm. As advanced process technologies, both process scales can provide advantages such as higher integration, smaller size, faster operating speed, lower power consumption and higher reliability.

With the continuous advancement of process technology, more and more RFID chips are beginning to use the advanced 65nm process, which can provide more functions and a wider range of application scenarios. Likewise, chip companies are constantly moving to more advanced process scales to continuously improve chip performance and functionality.