Skip to main content
BQR Fixtress

BQR Fixtress

GSAS Engineering · · 3 min read

fiXtress

fiXtress is a superior Design for Reliability (DfR) suite, serving as an add-on for any Electronic Design Automation (EDA) tool. It is the only tool integrating design error detection with electrical stress, thermal, MTBF and service life prediction at the schematic level, before PCB layout and production. fiXtress modules can either operate standalone or complement other modules to provide a comprehensive DfR solution for electrical circuits and PCB design.

fiXtress includes the following modules

ASR – Automated Schematic Review

Rapid – Electrical Stress Calculation

Precise – Electrical Stress Simulation SDA – Stress Derating Analysis

MTBF – MTBF Prediction Mini Thermal – Average PCB heating Multi Board- System Level simulation G-Lib – Automated library preparation

Benefits

  • Automated Schematic Review tool; Detect hidden design errors, driven by Electrical Stress, Reliability, Testability and Safety analysis
  • fiXtress uses the ICD (interface Control Document) signals and their tolerance, this means we do a real stress analysis and schematic review based on the power supplies and loads
  • Single and Multi-Boards analysis using the ICD between PCBs, if you do not use the ICD it is not a real analysis
  • Ready to use 17 groups of design rules, each one about 15 sub-groups
  • User can define easily new design rules for different applications such as Testability, ESD and Safety (ready 56 rules)
  • Rules are not scripts which run individually one by one, fiXtress runs all rules together using the results effects between components
  • Advanced level of rules that can check group of signals & BUSs between chips
  • Check for every pin the applied actual voltage and current, that comes from a real stress analysis to fulfill the components standards
  • Prevent hidden design errors, the cause of NFF (No Failure Found) during service
  • Very fast and accurate results in minutes for hundreds of rules on a 100,000 pads PCB with 25,000 components
  • Ready to use derating standards
  • User can create his own derating standard
  • Detect all EOS (Electrical Over Stress) violations with Pareto, overstress and overdesign reports
  • Unique Thermal analysis that estimate the average temperature rise over the cold-plate, for accurate stress Derating
  • Calculate the accurate MTBF based on real electrical and thermal stress
  • MTBF prediction for all available standards
  • Drive reliability data automatically to all RAMS analysis (FMECA, FTA, RBD, MTTR)

Conclusions

fiXtress is a new EDA plug-In software to any schematic capture which helps the designer to detect hidden errors early in the design process. fiXtress is using an Automated Schematic Review method which is driven by electrical circuits stress analysis and a database of rules. A Rule Wizard Editor is available to add new rules. The Tool uses C++ and not scripts and run very fast on very large boards.

Furthermore, the fiXtress uses the power signals and the loads (ICD: Interface Control Document) from the connectors to perform real simulation as it is powered in real use, in comparison to other tools that do not use the ICD.

Also appears in:

Interested in BQR tools?

Talk to our application engineers for personalized tool recommendations.

Stay in the Loop

Get monthly compliance updates, product insights, and engineering best practices delivered to your inbox.

Related Articles

Embedded engineering workstation in India, illustrating the debug, analysis and design steps where AI now runs inside the process, supported by GSAS
Industry Insights

AI Inside the Engineering Process: What Is Worth Automating, and What Still Needs an Engineer

Arm, SEGGER, Perforce and Siemens EDA have each put AI inside a step of the engineering process rather than on top of it: debug, remediation, design entry, inference on the part. GSAS sets out the position behind our coverage of each: which steps are now worth automating, and which keep a human because the cost of being wrong is a recall.

21 Sept 2026 · 11 min read
Embedded development bench, illustrating the hardware debug loop an AI agent can now drive, supported in India by GSAS
J-Link SEGGER

An AI Agent That Drives the Debugger: SEGGER and Embedder Connect J-Link to the Loop

SEGGER has given an AI coding agent direct control of J-Link and J-Trace: flash, breakpoints, memory inspection and live RTT on real silicon. The loop only works if the probe can read target RAM while the core runs, and GSAS field engineers know exactly where that breaks first.

13 Sept 2026 · 6 min read
Storage sizing ladder for automotive data logging: four rungs stepping from an aggregate link rate of 1 Gbit/s to 125 MB per second, then 450 GB per hour, then 3.6 TB per eight-hour shift, then 18 TB per five-day week, in decimal units, from GSAS Micro Systems India
Automotive Ethernet Automotive & Mobility

Automotive Data Loggers: Capture Without Loss

Search for an automotive data logger and the results split into cheap OBD dongles at one end and enterprise ADAS recorders at the other, with nothing in between explaining the engineering that decides whether you lose frames. This is the loss budget end to end: mirror oversubscription upstream of the logger, encapsulation overhead on the capture path, sustained write rate against burst rate, rotation stalls, and storage arithmetic worked in full so you can redo it with your own numbers instead of trusting ours. Written by the GSAS Micro Systems engineering team in India.

29 Aug 2026 · 13 min read