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Telecommunication PCB Assembly Service for Signal Transmission Control Module

Industry: Telecommunication / Network Gateway
Scope of Service: High-Speed DFM | 10-Layer PCB | SMT Assembly | X-Ray Inspection | High-Speed Signal Testing
Technical Highlights: 10-layer high-speed PCB, impedance control, fine-pitch BGA, signal integrity optimization, EMC shielding design

Final Outcomes & Measurable Value

Signal Performance: High-speed communication meets the design specification with no signal integrity issue.
Assembly Quality: Full X-Ray inspection eliminated hidden BGA soldering defects.
Project Progress: Gateway motherboard prototypes completed, supporting the customer's system integration test.

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Client Background & Initial Challenges

A European medical device company is developing a portable wearable ECG monitoring device for home health screening. The device uses a small rigid-flex PCBA to fit the wearable housing.

Key Challenges

Technical: High-precision weak bio-signal acquisition, circuit noise suppression, and repeated bending durability of the flexible board.

Quality: Medical traceability and complete manufacturing records required for ISO 13485 audit.

Manufacturing: Assembly of miniature components on a rigid-flex substrate.

MTI End-to-End Solution

DFM & Signal Integrity Review: Analog circuit layout optimization to reduce EMI noise, with separated analog and digital ground planes to protect the ECG signal.
Rigid-Flex PCB Fabrication & Assembly: Special process for rigid-flex board and precise SMT placement of tiny analog components.
Special Testing: Low-noise signal measurement, repeated bending reliability test, and full functional verification.
Medical-grade QC: Recording every production step with component lot traceability and generating inspection documents for medical certification submission.
Protective Packaging: Anti-static packaging suitable for medical components.

Final Outcomes & Measurable Value

Signal Performance: The low-noise design achieved clean ECG waveform acquisition, and the rigid-flex board passed the bending cycle test.
Document Support: Complete batch manufacturing records available for the customer’s ISO 13485 audit.
NPI Progress: Wearable PCBA prototypes delivered successfully, supporting the customer’s clinical validation phase.

Visual Proof & Testimonial

Client Quote: “Bio-signal noise was critical for our wearable ECG device. MTI’s analog layout advice and strict medical QC helped us move forward smoothly.”

Image Placeholders: rigid-flex ECG wearable PCBA, signal test waveform screenshot, clean miniature SMT assembly.

— 03 · MTI Engineering Approach

Redesigning the hardware architecture

Our engineering team focused on:

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Nordic BLE module integration

Our in-house designers and engineers have produced countless great designs for customers from different

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Low-power circuit optimization

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Sensor interface design

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PCB layout improvement

ustomers choose us because we provide leading technology, deliver unmatched products and services.

Component selection according to production requirements

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