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(16:52 + Q&A) Dr. Mengzhi Pang, Hardware Director, Rivian Automotive — A multi-chip-module testing vehicle was designed and fabricated for technology qualification of automotive grade components. The testing vehicle component, namely thermo-mechanical testing vehicle (TMTV), is composed of a daisy chain silicon die with embedded heaters and sensors for generating power and monitoring chip level temperature, ABF build up substrate, and thermal mechanical solution including TIM1 (thermal interface material) and heat spreader. A product mimic board, system level thermal/mechanical enclosure were also designed and prototyped so as to test TMTV system level reliability performance with respect to automotive grade qualification criteria (ACEQ 104). To perform power temperature cycling (PTC) qualification, an external chiller, pump, thermal chamber, and DAQ systems were also established to precisely control power temperature cycling profile and data acquisition. This experimental setup was used to collect PTC life of TMTV system in an accelerated manner and extrapolate to predict the power on and off reliability life in actual automotive user cases.
Bio: Dr Mengzhi Pang is currently working at Rivian as Hardware Director, Palo Alto, California. She has worked on hardware design and advanced technology development for more than 20 years. Some of her prior work includes Tesla’s Dojo Supercomputer system-on-wafer packaging, Apple’s A10 Fusion chip for the iPhone 7 using 1st generation of INFO (integrated fan-out) packaging, Broadcom’s high-speed networking switch chip packaging, etc. Mengzhi has 10+ peer reviewed journal publications, and 40+ issued patents. She holds a PhD in Materials Science from Washington State University, and had postdoctoral research at Cornell University.
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(16:52 + Q&A) Dr. Mengzhi Pang, Hardware Director, Rivian Automotive — A multi-chip-module testing vehicle was designed and fabricated for technology qualification of automotive grade components. The testing vehicle component, namely thermo-mechanical testing vehicle (TMTV), is composed of a daisy chain silicon die with embedded heaters and sensors for generating power and monitoring chip level temperature… (more)
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