Technical Articles From Keysight Technologies

Early Design Review of Boundary Scan in Enhancing Testability and Optimization of Test Strategy

Aug 01, 2018 | Sivakumar Vijayakumar

With complexities of PCB design scaling and manufacturing processes adopting to environmentally friendly practices raise challenges in ensuring structural quality of PCBs. This makes it essential to have a good 'Design for Test' (DFT) to ensure a robust structural test. (...)

During the course of the DFT review, can we realize a good test strategy for the PCBA. How can the test strategy of the PCBA be partitioned as to what portions of the design can be covered structurally and what is covered functionally, in a way that provides best diagnostics to discover faults...

Expanding IEEE Std 1149.1 Boundary-Scan Architecture Beyond Manufacturing Test of Printed Circuit Board Assembly

Jul 25, 2018 | Jun Balangue

This paper will discuss the expanded use of boundary-scan testing beyond the typical manufacturing test to capture structural defects on a component/devices in a printed circuit board assembly (PCBA). The following topics will be discussed to demonstrate the capability of boundary-scan test system on how we can extend beyond typical manufacturing test: Boundary-scan as a complete manufacturing test system, Boundary-scan implementation during PCBA design stage, Implementation of boundary-scan beyond typical structural testing...

Make the Right Design Choices in Load Switching and Simulation in a High Current and Mechatronic Functional Test

Feb 04, 2016 | Derek Ong, Lok Teng Kee, Chuah Rhun Chia

In a typical mechatronic manufacturing functional test setup, actual load simulations are usually done by connecting the DUT outputs to power or ground in order to establish either a high or low side driver. Each output is connected with different load and the test will either be sequential or concurrent. At lower power levels, these can usually be managed with general purpose switches. However, when it comes to higher power levels of currents more than 5 amps, such switching and loading might pose a greater challenge. Furthermore, critically in the manufacturing line, the tradeoff between cost and test time would have a great influence on the test strategy.

This paper will present some key points to design a cost effective high power switching and load management solution....