Author: Jack Wang1. Definition Standards and Technical Controversies of Halogen-Free Materials1.1 Precise Definition of Halogen-Free MaterialsAccording to the IPC-4101E standard, true halogen-free materials must meet:①Chlorine (Cl) content...
Author: Jack Wang Ⅰ.Technology Evolution Map: From "Lab Formula" to "Mass Production Code" 1. Molecular Design Iteration HistoryFirst Generation (1985–2000): Mitsubishi Gas Chemical’s original formula (BMI/CE=6:4), Tg 180°C, Dk 4.5, limi...
Author: Jack WangⅠ.BT Resin Substrate Diversified Applications: Decoding the Material Powering the High-Frequency EraSince its development in the 1980s, BT resin (Bismaleimide Triazine Resin) has achieved an optimal balance among thermal r...
Author: Jack WangⅠ. Definition and Chemical Basis of BT Resin Substrates BT resin (Bismaleimide Triazine Resin), developed by Mitsubishi Gas Chemical Company in the 1980s, is a thermosetting polymer synthesized through copolymerization of ...
In 2019, a leading smartphone manufacturer faced a major setback with its 5G millimeter-wave antenna module—signal loss at the 28 GHz band was 30% higher than expected. After three months of troubleshooting, engineers traced the root cause...
On the production line of a millimeter-wave radar factory in Suzhou, a PCB board branded with a special logo undergoes rigorous testing. This board, designed for an L3 autonomous driving radar operating at 77 GHz, exhibited abnormal signal ...
Author: Jack WangIn a laboratory of a Shenzhen-based communications equipment manufacturer, Engineers stared at the distorted signal waveform on his oscilloscope, frustrated. His 5G base station power amplifier board exhibited severe signal...
Author: Jack WangⅠ.Technology Evolution Map: How Four Generations of Materials Reshaped the Industry 1. First Generation: The Enlightenment Era of PTFE-Based Materials (1980-2000)Technological Breakthrough: Polytetrafluoroethylene (PTFE) w...