A
AaltoSemi
A manufacturer of packaging substrate products
About AaltoSemi
Based in Nanjing, China, AaltoSemi operates as a developer and manufacturer of advanced packaging substrate products essential for semiconductor applications. The company was established on May 8, 2021, to address the growing demand for high-end integrated circuit (IC) substrates. The name "AaltoSemi" is inspired by the Nordic designer Alvar Aalto, reflecting a philosophy of human-centric design and service.
AaltoSemi provides comprehensive IC substrate services, from research and development to design, production, and testing. Its core product offerings include Embedded Trace Substrates (ETS), Flip Chip Ball Grid Array (FCBGA), and Antenna in Package (AiP) substrates. Specifically, the company produces high-end packaging substrates such as BT, ABF, and embedded trace substrates for flip-chip chip-scale packages (FCCSP) and FCBGA. These components are critical for the functionality of CPUs, GPUs, FPGAs, network ASICs, 5G mobile devices, and automotive electronics. The business serves a client base that requires solutions for high pin counts and superior electrical performance in products like smartphones, consumer electronics, and 5G-related applications.
The company operates from a highly automated and intelligent IC substrate production park in the Pukou Economic Development Zone in Nanjing. AaltoSemi has secured significant venture capital backing to support its growth and production line construction, with total funding reaching $82.6 million from a pool of 27 investors, including notable names like BYD Company, CTC Capital, and Gaorong Capital. The firm's business model is centered on the B2B sale of its manufactured semiconductor components. By focusing on the development and mass production of high-precision, high-reliability substrates, AaltoSemi aims to support the continuous advancement of chip design and meet the stringent quality demands of the automotive and medical sectors.
Source: Dealroom company dataAt a glance
- Status
- Operational
- Founded
- 2021
- Headquarters
- Nanjing City, China
- Open positions
- None listed
- Dealroom signal
- 19.3/100
- Industry
- Semiconductors
- Sector
- Semiconductors, Semiconductor Designers and Manufacturers, SoC (System-on-Chip), Hard Tech, DT and LS, science-based
- Technology
- Deep Tech
- Client focus
- b2b
- Links
- Website
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES BOther financing | Nov 2023 | $0 | — | Undisclosed | ↗ |
| SERIES AOther financing | Apr 2023 | $69M | $275M | North Star Fund · Xiamen Lianhe Capital · Kunqiao Capital · Gaorong Capital | ↗ |
Growth signals
Latest recorded traffic for AaltoSemi is 550 monthly website visits, up 223.5% over the last three months.
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
| Company | Headquarters | Status | Employees | Total funding | Valuation |
|---|---|---|---|---|---|
| China | Operational | — | $78M | $206M | |
Shenzhen Siyuan SemiconductorPower management solutions for consumer electronics |
Qiandongnan, China | Operational | |||
Motion GIntelligent industrial platform that uses artificial intelligence and data science technology |
China | Operational | |||
Yiwei SemiconductorAn SoC chip design company for robot motion control and synchronous positioning and navigation purposes |
Zhuhai, China | Operational | |||
ThinktechA design and manufacturing company that specializes in producing automotive grade semiconductors |
Huangpu, China | Operational | |||
SEMIFIVESemiFive: New Global Hub of Custom Silicon |
Seongnam-si, South Korea | Operational | |||
Shenzhen Gencun TechnologyProducing MRAM memory chips and ultra-low power AI SoC |
China | Operational | |||
| Huangpu, China | Operational |
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Series A10 investors entered at this stage
North Star Fund- XCXiamen Lianhe Capital
- KCKunqiao Capital
Gaorong Capital
Summitview Capital
CTC Capital- TCTEDA Venture Capital
Junhai Chuangxin Consulting Management- JFJiangbei New District Development Fund
- SCStarrui Capital
Source: Dealroom Talent Intelligence.
Global footprint
Market sentiment
An AI-synthesised read of the highest-engagement posts about AaltoSemi on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
See AaltoSemi’s full profile on Dealroom
Request a free trial to see the complete deal history, financials, people graph and growth signals.
Takes under a minute. Already use Dealroom? Log in.





