The World’s Leading Semiconductor Test Platform

The UltraFLEXplus combines new instrument and software capabilities with a revolutionary tester infrastructure that provides a step-function improvement in throughput and engineering efficiency – all while leveraging the cumulative test IP developed over the UltraFLEX’s long history.


Fastest Time to Production

IG-XL software compatibility and the new Broadside Applications Interface enables test engineers to be more productive from the start and reduce the time to production by more than 20%.

Highest Throughput

The new UltraFLEXplus architecture increases site counts and improves parallel test efficiency, increasing overall throughput and  reducing the number of test cells required by 15%-50%.

Scalable Architecture

The UltraFLEXplus can be redeployed for multiple product lines and upgraded for future product requirements, increasing reuse and extending the asset’s useful life.


Mobile Application Processor
Digital Baseband Processors
High Data Rate RF Transceivers
Mobile Power Management ICs (PMIC)
Network Processors
High Speed SERDES (SERializer/DESerializer) and Backplane Transceivers
Storage Controllers
High-end Microcontrollers
Audio and Video Processors


The UltraFLEXplus has 3 base systems that allow customers to optimize capital cost, floor space and maximum resource count. All three versions utilize the Broadside DIB for higher density, higher site counts, and simplified routing.

UltraFLEXplus Q24
24-slot system

UltraFLEXplus Q12
12-slot system

UltraFLEXplus Q6
6-slot system

The UltraFLEX Family

Leveraging our customers’ existing investment, the UltraFLEX family of testers strives to reduce the engineering effort required to develop and deploy new test programs with comprehensive instrumentation and our IG-XL software, an industry standard with over 10,000 active programmers that has been continually enhanced over UltraFLEX’s long history.


Next-generation Automotive Test Platform with the

Industry’s Highest Throughput and Fastest Time to Market


The ETS-800 is designed with comprehensive functional test coverage including extensive analog and digital capability and provides automotive-level test quality. Its unique APEX architecture minimizes DIB complexity, reducing the time from project start to production release and enabling high site count to ensure sustainable high throughput.


◼ Scalable Site Count

Unique Multi-sector Architecture

○ Enables near-zero effort program scalability to high site count.

○ Supports up to four sectors,typically configured in a symmetrical fashion to enable site count scalability up to 1024 total sites.

Fast and easy capacity expansion when device volumes increase with support for a wide range of site counts and easy upgradeability to higher site counts

Highest Throughput

Fast PCIexpress communication infrastructure, optimized API’s and extensive test time profiling tools result in the shortest test times in the industry

Multi-sector Architecture delivers high parallel test efficiency with no effort from the test engineer

The largest applications space available, plus the APEX architecture’s integrated matrices & muxes enables maximum site count.

Fastest Time to Market

Mature, stable & powerful EV-MST Software enables test engineers to develop test programs efficiently.

Multi-sector Architecture allows engineers to focus on single or low site count program development and scale to a high site count program with near-zero effort. High parallel test efficiency is achieved automatically.

The APEX architecture reduces relays by an order of magnitude, enabling simpler dibs, higher site count and shorter development times.

Automotive-level Test Quality

Precision instrumentation and conservative, guaranteed specifications deliver stable results that are repeatable from tester to tester and device to device.

Comprehensive, integrated alarm infrastructure ensures every device pin receives the intended stimulus.


Industrial Power Management

Smart power stages, low dropout regulators, DC-DC converters, voltage regulators, boost regulators, mult-phase PWMs, battery chargers, hot swap power managers, gate drivers

◼ Precision Analog

Op amps, instrument amplifiers, video amplifiers, audio amplifiers

◼ Automotive Analog

BMS monitors, fuel injectors, ABS controllers, airbag controllers, automotive smart switches, CAN transceivers, motor driversUSB chargers, wireless chargers, PMICs

◼ Mobility

USB chargers, wireless chargers, PMICs


The ETS-800 test platform is designed with a unique Multi-sector Architecture making the system inherently scalable in terms of site count, with up to 1024 total sites. The system supports up to four sectors and each sector represents a complete mixed-signal multisite test system capable of testing a wide variety of products.

Production systems are controlled via a single multi-core test computer and may be populated with one, two, or four sectors based on the desired maximum site count.  Engineering systems support simultaneous, independent multi-engineer development.


What it takes to be a test engineer?


“To become a good engineer, it’s important to have a deep understanding of how passive and active components work, as well as how real silicon behaves under certain voltages and currents. On the software side, it’s helpful to have knowledge of VBA, C++, C, and scripting languages such as Python, Perl, and C#. Understanding the concepts of OOP and programming is also crucial. These foundational skills will make it easier to learn other skills needed for the job. If you’re just starting out, Silicon Service offers courses tailored to the specific needs of various projects.”


“Pursuing a career as a Field Application Engineer means embracing a continuous learning journey. Even with two decades of experience, one might hesitate to claim expertise in this ever-evolving field. It’s an excellent arena for self-improvement, offering opportunities to engage in both hardware and software testing, as well as development.

Beyond the technical aspects, communication skills are honed through regular interactions with clients and participation in numerous presentations, both virtual and face-to-face. The knowledge gained is often practical, acquired on the job rather than in academic settings.

An additional perk of the role is the travel; since joining Silicon Service, I’ve had the pleasure of visiting Germany and Italy on several occasions.”