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Basic Principles

Basic Principle of EMMA

Emma/Spyder series High Speed/Accuracy fixtureless testers have the flexibility to test 100% of your PCB's without the cost of Expensive Fixtures.

Continuity test

Continuity testEMMA' s high precision resistance measurement unit can detect even the smallest of open traces, splits between trace & pad, Buried, Blind and Micro-vias. Optimized test files can even detect breaks in via and plated through holes.

Isolation test

Isolation testThe EMMA series tester can accurately verify isolation between networks. With the aid of software driven adjacency, speed is dramatically improved while keeping test integrity.

Phase Difference Measurement (PDM)

Phase Difference Measurement (PDM)MicroCraft's Electronics division has developed a proprietary high speed, high frequency PDM unit. Unparalleled in the industry for quality and accuracy, proper implementation of the PDM process can improve continuity & isolation test speed by 100-300%.

Phase Difference MeasurementPhase Difference Measurement
Unparalleled performance is achieved using PDM. PDM eliminates the need to test isolation between networks with resistance. With PDM, fewer test points and test cycles are needed to achieve a complete test.