The blue film chip of NTC thermistor is widely used in thermopile, IGBT, integrated module, information control module, semiconductor laser, reactor controller, etc. It has the characteristics of small size, high sensitivity, and easy bonding and packaging. In the epidemic situation, infrared temperature measurement products such as forehead guns are widely used.
In the production process of the thermistor blue film chip, it is difficult to achieve a high precision of ±1% of the resistance value of the bulk product. In order to meet the requirements of high resistance value, chip sorting is required. In the chip sorting process, due to the contact between the test target and the chip, a certain amount of damage will be caused to the chip. Behaved as:
1. Scratching the silver surface of the chip may cause scratches;
2. Damage to the integrity of the chip may cause chip corners and edges due to physical collisions.
YAXUN Electronic Technology Co., Ltd. has achieved technological breakthroughs in blue film chips after years of research and exploration and process control:
1) The use of flexible testing technology avoids the scratches and defects that may be caused by traditional mechanical measurement and sorting. There are almost no traces of measurement and sorting on the chip body, nor should it be observed with a high-power magnifying glass, and the chip body does not have any defects caused by the sorting test. It greatly improves the product appearance integrity and product mechanical strength, and also improves product reliability and stability.
  2) At present, for the blue film chip products with resistance value accuracy of ±1% and B value accuracy of ±0.5%, the supply qualification rate has reached 95%, and the internal control qualification rate has reached 99%. This is second to none in the industry.
The high-precision NTC thermistor blue film chip produced by YAXUN Electronics has high precision, good consistency, high reliability and long service life. The temperature measurement NTC thermistor products produced with high-precision NTC blue film chips have passed the CQC mark certification, the German TUV certification, and the United States UL and C-UL safety certification. Among them, MF52, MF51, and MF58 have passed automotive-grade AEC-Q200 testing, and MF58 series products have passed 100,000 durability tests in the UL standard.

At present, YAXUN Electronics' high-precision NTC thermistor blue film chips have achieved mass production and sales. As a temperature reference chip, it has a wide range of applications and has been recognized by customers. The most gratifying thing is that some customers have successfully applied the product to the temperature measurement of mobile phones, and this model of mobile phone has been successfully marketed.