Boundary Scan Testing

Boundary Scan Testing / JTAG is fast becoming a normal test platform for digital assemblies. It is essential that the JTAG test ports are designed into the board and thought is given to routing signals out and in via analogue/ interconnects to improve coverage.

Programming and interfaces are relatively inexpensive and the system is normally reasonably production friendly if fixtures are produced that can withstand plugging in and out on a continual basis.

Boundary Scan Testing / JTAG at a glance

Set Up Costs

Programming is normally £1K – £2K
Fixtures can be added if more complex
At NOTE’s facility in Windsor we have JTAG Tech, XJTAG, Goepel and Corelis systems
Some custom interfacing may be needed which may cost extra

Speed

Good test speed
Minutes normally

Coverage

Variable
Depends on your design and if you use fixtures

Operator Level Required

Good
Some technical knowledge

Fault Finding

Good
Fault information is normally component or net level
Fault tables can be hard to interpret.

Running

Cost Excellent
Very low test and maintenance costs

Experience the difference

See why NOTE is right for you.

“They provide excellent service, with professionalism, great quality and the set up is top level. Personal service – feels like dealing with a small company but they have the corporate support and backing. They have nailed it.”

Other Services in Test & Inspection

Inspecting to IPC standards

Knowing your acceptable quality levels is as important as sending us your data and bills of material.

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Checking that BGAs and QFNs are placed and soldered to the highest standards can be a challenge unless you have X-Ray and a BGA Scope.

Automated Optical Inspection (AOI)

AOI enables fast and accurate inspection of PCBs, ensuring that the quality of product leaving the production line is high and items are built correctly.

In Circuit Test (ICT)

ICT is a fast and efficient fully automated method of testing, which helps detect defective components by check them individually.

Flying Probe Test

Flying Test is an excellent test system for smaller batches. and requires little design input.

Functional Test

Functional Test is often needed as a proof that the assembly or unit conforms to specification.

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