After a 730-day wait, the 24th China International Optoelectronic Exposition (CIOE 2023), a three-day event, successfully concluded on September 8th at the Shenzhen International Convention and Exhibition Center (Bao'an New Hall). This year's exhibition featured over 3,000 exhibitors and attracted a record-breaking 108,063 attendees.
Cotest was invited to participate in this grand event showcasing technological innovation, and presented several core products, attracting numerous domestic and international customers who stopped by to visit, inquire, and exchange ideas.





经过技术沉淀 与创新的VCSEL封装体量产测试台SPMT7000也受到了广大专业观众的咨询,纷纷对其表示兴趣。


In addition to the VCSEL wafer narrow-pulse test bench and the VCSEL wafer narrow-pulse test system, Cotest also showcased its desktop test systems at this exhibition: the VPP8000 high-speed optical communication chip wafer test system platform and the PPM1000-IS high-speed optical power measurement system, providing customers with support throughout the entire R&D cycle, from lab to fab.



Cotest Co., Ltd., established in 2019, specializes in the research, development, production, sales, and service of optoelectronic semiconductor device testing equipment. The company is dedicated to helping users accelerate the entire process from R&D testing and prototyping to small-batch testing and large-scale mass production testing, providing users with diversified testing products and solutions. Today, Cotest has become one of the most comprehensive providers of optoelectronic semiconductor testing equipment and services in China, addressing critical testing equipment bottlenecks in the production process of optoelectronic semiconductor devices. It has also become a testing partner for several leading LiDAR companies in China.