Soldering connection resistance is sought in applications including radars, ADAS ECUs, central ECUs, engine ECUs, TPMSs, and cameras with characteristics such as severe temperature changes, heat control difficulty, and a large number of laminated boards. Murata Manufacturing’s crystal units have a unique structure. This structure improves the average value of resistance to cracking that occurs during soldering (product life) by 20 points or more compared to other companies.