Calculating Microvia Partial Inductance in High Speed Printed Circuit Board Escapes
PEEC formulation extracts microvia partial self-inductance from barrel aspect ratio and capture pad geometry, confirmed by de-embedded coupon S-parameters.
Optimizing IEEE 1149.1 Boundary Scan Register Architectures in High Density System Layouts
Partitioning boundary scan registers into parallel sub-chains cuts test vector execution time while maintaining high fault coverage on dense boards.
Managing Parasitic Phase Jitter Mechanics in High Density Interleaved Probing Boundary Scan Fixtures
Managing parasitic phase jitter in boundary scan fixtures requires interleaved ground probes, damped trace terminations, and controlled clock edge rates.
Mapping High Speed Power Grid Transfer Impedance to Emissions Limits
Mapping high-speed power rail transfer impedance limits directly to radiated emissions limits prevents costly EMC chamber re-tests and batch rejections.
Resolving Intermittent High Speed Signal Integrity Escapes Surviving Static Advanced Boundary Scan Verification
Resolving intermittent high speed signal integrity escapes requires pairing static boundary scan with embedded IJTAG at speed stress testing to catch dynamic physical layer failures.
Evaluating Physical Probe Contacts on Boundary Scan Test Access Ports
Boundary scan TAP probe evaluation demands dynamic contact resistance monitoring under 20mV dry-circuit limits to prevent false structural defect calls.
Modeling Dynamic Parasitic Loading and Timing Drift across Interleaved Probing Boundary Scan Networks
Modeling probe parasitics and edge skew on boundary scan nets prevents false test failures and maintains scan chain timing margins under fixture actuation.