Car gauge sensor TO coaxial packaging and packaging equipment

Release time:

2024-05-11 08:41

Source:

TO Coaxial Package Car Gauge Sensor and Packaging Equipment-Butterfly BOX Package Car Gauge Sensor Chip Package Round Metal Shell Device Package-Aote Hengye Cap Sealing Machine

Smart cars are becoming a third space integrating leisure, entertainment, office and other functions. All kinds of smart car gauge sensors play a key role in it. The biggest difference between car gauge sensors and products used in ordinary consumer electronic products lies in reliability and stability. Directly related to automotive electronics is the AEQ quality standard. AEC-Q100 is a failure mechanism based on stress testing of packaged integrated circuits. Current applications of AEC-Q100 in integrated circuits are dominated by discrete component AEC-Q101 and passive component AEC-Q200. In addition to AEQ, another specification that must be followed is the ISO 26262 standard developed by the International Organization for Standardization in 2011, which is mainly aimed at functional safety products, such as ADAS-related sensors and systems.

The main difference between the car gauge sensor chip and the chip used in ordinary consumer electronics products is the following 4 points.

1. The vehicle has strong anti-bad environment performance. The temperature range in the engine compartment is -40°C to 150°C, so the vehicle chip must meet this larger temperature operating range.

2. The design life of automobile products is longer. The design life of automobiles is generally around 15 years or 200000 kilometers, which is much longer than the life requirements of consumer electronics products. Therefore, the product life cycle of automotive chips is required to be more than 15 years, and the supply cycle may be as long as 30 years.

Security is particularly important in automotive chips. The security of automotive chips is mainly composed of functional security and information security. The mobile phone chip can be shut down and restarted if it dies, but once the car chip goes down, it may cause serious safety accidents. For functional safety, the international organization IEC has issued IEC61508 standards.

4, automotive chip design should also consider long-term. Automotive chip design must be forward-looking and able to meet the customer's forward-looking needs in the next 3 to 5 years. Therefore, the car gauge chip shows the characteristics of long industrialization cycle and high threshold of supply system.

Under such circumstances, how to maintain the consistency and reliability of the chip package is the first problem to be considered by the car gauge chip. At the same time, higher requirements are also put forward for the packaging of car-grade chips,

The chips of the car gauge sensor are all packaged in a sealed shell, and the commercial standard package can be divided into butterfly BOX package and TO coaxial package.

"TO Coaxial Package" is aimed at sealing and welding the socket and cap of a circular metal shell device without surface mount parts. Coaxial means that the center line of each optical path is on the same straight line from the chip emitter, lens to optical fiber. At present, TO coaxial devices have basically occupied the mainstream microelectronic device packaging application market because of their ease of manufacture and cost advantages.

The equipment used in TO coaxial packaging is collectively called "cap sealing machine" in the industry. Beijing Aote Hengye Electrical Equipment Co., Ltd. has the most complete series of cap sealing machine products in the industry, including semi-automatic cap sealing machine series that meet the demand for high cost performance, high-efficiency cap sealing machine that meets the demand for high-speed production capacity, with an hourly production capacity of 3000 to 4000, and high-precision cap sealing machine series that should package high-speed devices with a rate of 25G bits per second. The cap sealing machine equipment of our company adopts capacitive energy storage power supply, which can be packaged in vacuum or inert atmosphere environment to realize short-time welding, with low thermal influence, high precision and stable quality and high cost-effective packaging process. Customized products can also be provided according to customer needs.

How to evaluate the reliability of optical devices, lasers, sensors and other product covers

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