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Figure 5: Measurement results a) realized gain, and b) return loss, match simulation results after the LTCC substrate was fired.












        Figure 6: a) (left) Surface-mounted IC chips, and b) fired LTCC substrate.




                                                                              Figure 7: A LTCC AiP module installed into a device.
                                                                              FEM are key to achieving high 5G
                                                                              performance efficiency at low levels of
                                                                              power consumption. The outcome of
                                                                              our LTCC testing—showing its ability
                                                                              to maintain good thermal stability and
                                                                              heat performance while significantly
                                                                              reducing insertion loss—opens the
                                                                              door to developing new AiP substrates
                                                                              in which their size is reduced along
        Figure 8: EVM testing result.                                         with signal loss.
                                                                              Summary
                                                                                LTCC materials deliver both superior
                                                                              environmental tolerance and a high level
                                                                              of design freedom in high-frequency
                                                                              applications.  These  materials could
                                                                              play an important role in advancing
                                                                              instant communication for autonomous
                                                                              vehicles that talk to each other, as well
                                                                              as for applications for 5G mmWave band
        Figure 9: Signal testing showed that antenna prototypes made with DuPont™ GreenTape™ have low loss and   communications, military operations,
        provide clean image and audio transmission of high-resolution video files.  remote surgery, robotics, and more.


                       Biography
                         Andy Kao is a Global Telecom Segment Leader at DuPont Microcircuit and Component Materials in Taiwan
                       where he develops new solutions for 5G and high-frequency applications. He received a Master’s degree in
                       Material Science from National Taiwan U. Email: Andy.Kao@dupont.com




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