Customer Cases

Engineering solutions are proven where projects get difficult

We present the key engineering judgments inside each project: how the issue was identified, how the solution was implemented, and how the result was verified. Customer, supplier, and model details are protected while the engineering facts remain clear.

Deep-Sea Conformal Coating project imageCASE 01coating / underfill / traceabilitycoating evidence
Nordic Marine Robotics Company

Deep-Sea Conformal Coating

Completed high-reliability low-volume manufacturing with three types of conformal coating and underfill for a Nordic marine robotics client

Challenge

A single PCBA required three different conformal coatings in separate zones along with underfill, extremely low volume, and stringent reliability requirements for extreme environments

Solution

Precision selective coating process combined with proactive validation of alternative material options to reduce material risk and shorten validation cycles while maintaining reliability

Result

Stable continued delivery with deeper customer trust

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Test System Rebuild with Incomplete Documentation project imageCASE 02test logic / firmware / system rebuildtest system
Publicly Listed In Vitro Diagnostics Company

Test System Rebuild with Incomplete Documentation

Delivered a universal test system compatible with multiple control boards for an in vitro diagnostics (IVD) client under incomplete documentation conditions

Challenge

The original design engineer had departed, leaving only a test requirements checklist. The customer urgently needed a universal test system compatible with multiple control boards

Solution

Analyzed interface behavior and rebuilt the test logic, independently completed hardware design (power system, command simulation, signal acquisition), iterated firmware through multiple versions, and developed PC software in parallel

Result

Delivered in under three months. One test system now supports multiple control boards, and the client continues to choose Ledge for new projects

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Display Module End-of-Life Replacement project imageCASE 03EOL replacement / driver board / low MOQEOL recovery
Nordic Dynamic Positioning Systems Company

Display Module End-of-Life Replacement

Established a replacement validation and delivery path for a Nordic dynamic positioning systems company after a critical display module reached end of life

Challenge

Critical display module was discontinued by the supplier; product delivery had been delayed for six months with no special supply arrangement available

Solution

Proactively sourced OLED display alternatives suitable for medical and industrial equipment, designed a driver board compatible with the existing interface and requiring only limited client firmware adjustments, and completed prototype validation in 6 weeks with no minimum order quantity

Result

Restored the replacement validation and project delivery path; modular design supports future screen upgrades

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