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In 2014, mCube announced a $37 million Series C to accelerate growth and expand its motion-sensor line. The company’s pitch was that integrating a MEMS motion sensor and its electronics on one chip could simplify manufacturing and make motion sensing easier to build into devices. Its “Internet of Moving Things” described a vision for putting sensors into objects so their movement and context could be measured—not evidence that every proposed market adopted the technology.
What mCube announced in 2014
On June 25, 2014, mCube said it had closed a $37 million Series C financing round to accelerate growth and expand its motion-sensor product line. The company named existing investors Kleiner Perkins Caufield & Byers, MediaTek, iD Ventures America, and DAG Ventures. New investors were Keytone Ventures, SK Telecom (China) Ventures, and Korea Investment Partners. mCube’s financing announcement
mCube’s then-president and CEO, Ben Lee, said, “Virtually anything in motion can benefit from mCube’s high-performance and low-power sensors.” The statement captures the company’s ambition, rather than an independently demonstrated performance result.
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How the single-chip MEMS approach was meant to help
MEMS motion sensors detect movement using tiny mechanical structures. In the design mCube described, those structures and the supporting electronics were integrated into a single chip. The company presented that monolithic approach as a way to reduce the complexity of producing and incorporating motion sensors.
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A 2017 interview described the process as placing MEMS motion sensors above electronics circuitry and hermetically sealing them using standard CMOS wafer processing. It also said through-silicon vias reduced the need for area-consuming bond wires. This is a description of the company’s approach, not independent proof that it outperformed alternative processes. 2017 technical interview
| Design consideration | What mCube’s approach was intended to address | What the cited sources establish |
|---|---|---|
| Component integration | Combine sensing structures and electronics on one chip. | mCube described this as its design approach; no independent comparison is provided. 2014 announcement |
| Footprint | Make a compact sensor that could fit into more devices. | Contemporaneous coverage characterized the sensor as compact; no comparative dimensions or test are supplied. 2014 coverage |
| Power consumption | Offer motion sensing suitable for devices where power use matters. | Lee described the sensors as low-power; no comparative power measurements are supplied. 2014 announcement |
| Device integration | Make the sensor simpler for product designers to incorporate. | Coverage described this as an intended advantage, not a measured design-time result. 2014 coverage |
| Manufacturing complexity | Use integration to simplify production. | This was mCube’s claim; the sources do not provide independent cost, yield, or process comparisons. 2014 announcement |
What “Internet of Moving Things” meant
For mCube, the phrase meant placing motion sensors in objects and devices so their movement and context could be measured and analyzed. The company pointed to consumer electronics and wearables, as well as automotive, trucking, shipping, and sensor tags. These were target applications and examples, not proof of adoption across those industries. mCube’s 2014 announcement 2014 coverage
The 2014 announcement also cited an analyst prediction of more than 50 billion connected devices by 2020. That was a forecast made at the time, not a current market statistic or evidence that the prediction was realized.
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Data Center Knowledge reported in 2014 that mCube had shipped more than 60 million units and that chips then cost between 30 and 70 cents each. Both are historical figures: the shipment total was reported as a company figure, and the price range describes the period, not present-day supply or pricing. Data Center Knowledge, 2014
A later named sensor: MC3451
In a 2017 company announcement, mCube described the MC3451 smart accelerometer as part of its MC34xx family and said it would be available for sampling in Q4 2017. That announcement establishes a named product and historical sampling plan; it does not establish current availability or specifications. mCube’s 2017 product announcement
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What can be concluded today
The financing and product announcements document mCube’s 2014 strategy: build an integrated motion-sensor business around a single-chip MEMS approach and place sensors in a broad range of moving things. The cited period sources describe that strategy and its claimed advantages, but they do not establish independent manufacturing-cost or yield benefits. They also do not establish mCube’s present corporate status, current component availability, or current pricing.
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