MEMS MIC Customization for AI-Driven Wearable Electronics

Wuxi Silicon Source Technology Co., Ltd. offers flexible MEMS MIC customization models to accelerate development of AI-enabled audio solutions for smart wearables and other consumer electronics. Whether you need ASIC microphone integration, where your proprietary ASIC is combined with our precision MEMS MIC die, or a full OEM MEMS microphone design delivered ready to integrate, our 15-year heritage in MEMS development ensures best-in-class acoustic performance, low-power operation, and rapid time-to-market.

Collaboration Model 1: ASIC Microphone Integration

Leveraging Proprietary ASICs with MEMS MIC Dies

In the ASIC microphone integration model, customers supply their custom ASIC—for example, a voice-AI DSP or codec—and our engineers integrate it with a MEMS microphone transducer and front-end circuitry. This approach retains your unique processing algorithms while avoiding the complexity of MEMS fabrication and packaging. The result is an ASIC-integrated module that features:

• High SNR (up to 70 dB) and low self-noise, preserving vocal nuances for accurate voice AI processing.
• Tight sensitivity matching (±1 dB) and phase consistency, essential for arrayed mic systems in wearable microphones.
• Minimal power draw, often below 1 mA active and single-digit µA standby, extending battery life in always-listening modes.

By combining your ASIC’s unique features with our MEMS dies (e.g., SMI821, SMI861), development teams can prototype quickly and focus on algorithm refinement rather than audio front-end design.

Collaboration Model 2: OEM MEMS Microphone Customization

Turnkey Design and Manufacturing

Our OEM MEMS microphone service delivers complete, packaged microphones tailored to your specifications. From diaphragm geometry and port type to package footprint (as small as 2.75 × 1.85 × 0.9 mm), we handle every step:

1. Requirement Analysis: Define sensitivity, low-power audio sensor targets, dynamic range, and mechanical constraints.
2. Custom MEMS Design: Engineer diaphragms, backplates, and ASIC interfaces optimized for AI-enabled audio and voiceprint recognition.
3. In-House Fabrication & Packaging: Leverage wafer-level MEMS processes and precision assembly to ensure high yield and reliability.
4. Testing & Validation: Perform acoustic chamber measurements, environmental stress tests, and electrical characterization.

Clients receive a finished MEMS microphone (either analog PDM/I²S or digital I²S) ready for high-volume integration into wearable headsets, earbuds, or health monitors.

Featured MEMS MIC Models

Below are key products from our portfolio (https://sistc.com/products/) that illustrate the range of customization options:

• SMI821 (Analog Top-Port): 54 dB SNR, 120 μA current draw, 140 dB AOP—ideal for ultra-low-power wearables requiring wide dynamic range.
• SMI861 (Analog Bottom-Port): Optimized for noise-critical applications with 60 dB SNR and integrated ESD protection.
• WBC3526DT26TJ0 (Digital Top-Port): –26 dBFS sensitivity, 64 dB SNR, 0.10% THD—suited to voice authentication in smart earbuds and AR glasses.
• WBC4030DB36B1P0 (Digital Bottom-Port): –36 dBFS sensitivity, 70 dB SNR, 0.03% THD—engineered for premium AI-enabled audio use cases in health trackers and watches.

Our MEMS microphones support both PDM and I²S outputs, enabling straightforward integration with microcontrollers and DSPs.

AI and Voiceprint Recognition in Wearables

Modern wearables increasingly incorporate voice AI and voiceprint recognition, requiring clear, low-noise audio capture even in motion and varied environments. MEMS MICs serve as the critical front-end:

• Beamforming & Noise Suppression: Multiple matched MEMS mics can form arrays that focus on the speaker’s voice and reject ambient noise—crucial for reliable voice authentication in fitness bands and AR headsets.
• Always-On Wake-Words: Low standby currents (< 5 μA) allow continuous listening for keywords with minimal battery impact.
• Dynamic Range for Varied Conditions: AOP ratings above 130 dB ensure no clipping during loud exhalations or outdoor use.

By partnering with Wuxi Silicon Source, OEMs and ODMs can embed robust biometric security and natural language interfaces into next-gen smart wearables.

R&D Strength and Manufacturing Scale

• Over 440 patents in MEMS microphone technology, covering novel diaphragm structures and packaging methods.
• A dedicated team of 25+ microacoustics engineers with full simulation and anechoic testing facilities.
• Proven high-volume production, with over 150 million units shipped to date, ensuring supply chain reliability for your consumer products.

Our vertically integrated processes—from wafer fab to final test—enable rapid customization cycles and consistent quality control.

Conclusion and Call to Action

Wuxi Silicon Source’s MEMS MIC customization and OEM MEMS microphone services deliver the flexibility and performance needed for AI-driven wearable audio applications. Whether integrating your own ASIC or requesting a turnkey microphone design, our MEMS MIC solutions ensure top-tier acoustic fidelity, power efficiency, and rapid product launch.

Visit _{https://sistc.com} to explore our MEMS MIC portfolio and discuss your customization requirements with our engineering team today.

Citations:

1. Product listings and customization overview at SILICON SOURCE PUI Audio
2. MEMS microphone definition and ASIC integration context from STMicroelectronics sameskydevices.com
3. Digital MEMS microphone features including SNR and dynamic range 源
4. Analog vs. digital design considerations for power and latency
5. Fabrication method and device reliability from patent US20160304337A1
6. Wearable device microphone specs from Alibaba listing
7. Voice AI and market leadership from Syntiant sensors
8. Automotive-grade microphone performance context from Infineon
9. Customizable MEMS microphone applications from PUI Audio
10. Evaluation and prototyping insights from Same Sky development kit