宏达电子：子公司生产的单层瓷介电容器和陶瓷薄膜电路可以应用于光通讯领域光接收发射模块，光电转换模块中

Group 1 - The company has products that can be applied in the optical communication field, specifically in optical receiving and transmitting modules, as well as in optoelectronic conversion modules [2]