M+ RUGGED - IPC Class 3

---

When it comes to electronics built for aerospace, defense, and other mission-critical environments, reliability isn’t optional — it’s the foundation. That’s why MEMKOR builds Military-grade SSDs to IPC Class 3, the most rigorous standard defined by the IPC (Association Connecting Electronics Industries) for printed circuit boards (PCBs) and assemblies.

IPC defines three classes of electronic products:

• Class 1: General use electronics, where function is the primary requirement (e.g., consumer gadgets).
• Class 2: Dedicated service electronics, where extended life and consistent performance matter, but some downtime is acceptable (e.g., industrial equipment).
• Class 3: High-performance, harsh-environment electronics, where uninterrupted service and long-term reliability are critical. Examples include avionics, satellites, defense systems, and medical life-support.

Class 3 is the gold standard, requiring the tightest tolerances, the most stringent inspection criteria, and the highest workmanship standards in the industry.

Building to IPC Class 3 means going beyond “good enough.”

It involves:

• Annular Ring Integrity
  Every via must maintain full copper around the drilled hole — no tangency or breakout allowed.
• Plated Through-Hole Quality
  Tighter requirements for copper thickness and uniform plating to ensure long-term durability.
• Solder Joint Excellence
  Only flawless solder joints are acceptable. Any voids, cracks, or insufficient wetting are rejected.
• Material Reliability
  Strict control of laminates, finishes, and solder masks to withstand temperature swings, vibration, and harsh conditions.
• Enhanced Inspection & Testing
  More comprehensive visual inspections, microsections, and electrical tests to verify conformance.

Choosing Class 3 provides significant advantages for mission-critical programs:

• Assured Reliability: Boards are built to perform flawlessly for their entire service life.
• Environmental Resilience: Proven durability under extreme temperature, shock, and vibration.
• Compliance Confidence: Alignment with aerospace and defense quality requirements.
• Reduced Risk: Higher yield and fewer in-field failures compared to lower-class builds.

At MEMKOR, we understand that failure is not an option in aerospace and defense. That’s why we offer IPC Class 3 manufacturing for both standard and custom form factors. Whether you need rugged SSDs in familiar sizes or uniquely engineered solutions for demanding environments, MEMKOR ensures every board is built and inspected to the highest standard of reliability.

MEMKOR: Delivering IPC Class 3 quality — where mission success depends on it.