Recently, Calterah Semiconductor has secured a DOW deal of HASCO, an international auto parts Tier-1 supplier, with its mmWave radar AiP (Antenna-in-Package) chip product, according to the sales director of Calterah. The AiP chip product of Calterah is adopted by HASCO for the door open waring (DOW) feature of some premium car models to be mass produced next year.

The compact size, high performance and low power consumption were what made Calterah AiP stand out, said the R&D head of HASCO ADAS BU, adding time and costs for antenna design were saved and thus the DOW project could be accelerated. According to Hasco, the DOW feature is not exclusive to premium cars and the next few years will see a greater presence of DOW in economy ones. As a result, the cost, size and ease of use of the radar enabling such a feature are among the first to be considered.

As a leader in CMOS mmWave radar sensor chip development and design, Calterah in 2019 rolled out its second generation auto-grade CMOS 77-Ghz mmWave radar sensor AiP chip products.

The advantage of the AiP technology is making it a reality that the size of radar modules shrinks to one tenth of that of the traditional ones or even smaller while maintaining relatively high performance. Customers no longer need to design or develop antennas, or use high frequency PCBs in manufacturing, thus making easier the module production and reducing the R&D cycle time and costs.

Regarding reliability and safety, which is essential to ICs, Calterah’s auto-grade AiP products meet the requirements of AEC-Q100 qualification and is compliant with ISO 26262 Functional Safety management process while undergoing a complete set of proprietary testing procedures.

Featuring an architecture of 4T4R (four-channel receiver and four-channel transmitter), Calterah’s AiP products come from the Alps and Rhine families, working at 77/79 GHz and 60 GHz for the auto and industrial markets, respectively.

Auto Applications

As an essential sensor for vehicles, mmWave radar can be applied to various advanced driver-assistance systems (ADAS) features, including autonomous emergency braking (AEB), forward collision warning (FCW), lane change assistance (LCA), blind spot detection (BSD), automatic parking system (APS), etc. Inside the cabin, mmWave radar can measure the driver’s vital signs by detecting the micro motion caused by breathing and heartbeats, and determine whether there are humans or any pets. In addition, mmWave radar is more privacy-friendly than cameras. On top of these benefits, AiP-based sensors as mentioned are more compact and cost-efficient, making it easier to install them at the dome light or elsewhere.