Matsushita Electric Industrial Solutions Co., Ltd.'s Electromechanical Solutions Co., Ltd. has launched the "High Temperature Impulse Secondary Mounting Side Reinforcement Adhesive" CV5797U, which will improve the device reliability and production power of automotive parts, and will be mass-produced from March 2021.
In-vehicle electronics need to be highly reliable to cope with the harsh conditions unique to cars, such as temperature differences and sensations inside and outside the vehicle. In addition, with the improvement of car driving and handling skills and the advancement of communication services, on-board electronic components are constantly upgraded to higher functions. As a result, the increasing size of semiconductor packages and the higher density of the components mounted on them have led to more and more sophisticated wiring. In addition, due to factors such as the addition of heat to semiconductor packages and the reduction of the area of the external interface terminals, the occurrence of cracks caused by the stress applied to the solder joints has become a problem. In order to reduce the occurrence of solder cracks, we have completed the commercialization of reinforcement materials for mounting PCB board-level devices with high temperature resistance through our unique resin planning skills and flowability control skills, so that we can quickly complete placement reinforcement even for large-scale semiconductor packages that require high device reliability. This product is guaranteed to have an expiration date of 72 hours at room temperature, which is three times that of our conventional product, and is easy to operate, thus increasing the output power of the plant process.
1) With high device reliability, avoid the occurrence of cracks in the solder joint
A high Tg (160°C) and low CTE (14ppm) are planned to reduce stress on the solder joint during temperature cycling
Temperature cycle test: 6000 cycles at -55°C - 125°C
(Application evaluation components: 6 mm× 6 mm WLP, solder type SAC305, solder ball distance 0.3 mm, number of solder balls 264 pins, substrate size 30 mm× 30 mm× 1.0 mmt)
2) It is easy to operate and helps to improve the output power of the device process
The shelf life at room temperature reaches 72 hours, which is three times that of our conventional products, and it is easy to operate
(Legacy product: Product No. CV5314)
Compared to using our underfill materials, the dispensing and coating time has been significantly shortened to about 1/10 of the original time
(Application evaluation components: 25 mm× 25 mm BGA, solder type SAC305, solder ball distance 0.5 mm, number of solder balls 2025 pins, substrate size 40 mm× 40 mm × 1.6 mmt)
It can be sprayed through the jet valve
3) Large-scale BGAs of 25mm × 25mm or more can be mounted and reinforced
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