Dylan T Bespalko

Embedded Test Engineer

Phone:

1-(480)-251-2051

Email:

I am a Canadian Citizen and can apply for work in the US under a TN visa (~2 week process)

I have over 15 years of R&D experience in the wireless and medical industry, and I am passionate about Heterogeneous Processing and Software Defined Radio (SDR).
• Dynamic modelling experience using Digital Pre-Distortion under Envelope Tracking stimulus.
• Static modelling work using Multi-harmonic VNA Calibration theory under load-pull stimulus.

• Experience with deploying embedded test fixtures to manufacturing using Buildroot/Yocto HW containerization.

Interests (Links)

HW: KiCAD, Qucs (Ngspice, Xyce), OpenSCAD

FW: U-Boot, Linux, Device Tree, I2C, SPI, Verilog (Testbench), Buildroot, Yocto

SW: Python, C++, Qt, AWS

Dev: Digilent Analog Discovery, Xilinx Zedboard, STM32 Discovery2, Deepwave Digital AIR-T

Capabilities

I am experienced in the following Characterization techniques

Device Level

DC IV Characteriscs
SOLT/TRL VNA Calibration
Hot-S/X Parameters
DC/RF Iso-thermal Pulse-Profile
Passive/Active Load-pull
ADC Histograms
Probe Station Alignment/Focus

Embedded SoC

DC Voltage/Current Monitor
Bare-metal Memory Testing
Buildroot/Yocto Linux Image
USB, SFP+ high-speed serial
I2C Tools, SPIdev bit-bashing
Verilog Testbench
DSI, HDMI video output testing
Wireless BLE connectivity
Integrated Logic Analyzer Debug

System-Level

RF DPD and ET Calibration
IQ Gain/Offset Calibration

Work Experience

Mar 2022 - Nov 2022
Clip Health

Jun 2020 - Mar 2022
BD Biosciences

Jan 2019 - Jun 2020
Pytorch (Open Source)

Apr 2016 - Jan 2019
Broadcom

Jan 2015 - Apr 2016
Scikit-Nonlinear (Open Source)

Staff Manufacturing Test Engineer

• FCT manufacturing test fixtures for MCU/FGPA IOT device.

• Signal Processing, Image Processing, and BLE (BlueZ) testings.

• Calculated PCOLA AOI/AXI/ICT/FCT test coverage.

• Worked with Mechanical Engineer to create a high-volume PCBA/System-Level production line using Intel NUC + 3D printing.

Senior Hardware Test Engineer

• FCT R&D test fixtures of Xilinx Zynq US+ MPSoC (CPU/FPGA).

• Digital verification of I2C/SPI/UART peripheral devices.

• Medical grade, multi-channel embedded ADC verification.

• 300pg Sphinx auto-generated docs integrated with HW test vectors.

Senior Software Test Engineer

• Added complex number support to CPU math kernels.
• Added complex number support to GPU math kernels.
• Added real/complex number support to FPGA math kernels.

Staff Hardware Engineer

• On-wafer large-signal multi-harmonic characterization under passive load-pull mismatch.

• Thermography of thin-film bulk acousIc resonators (FBAR).
• Developed a phone calibration of RFICs using DPD and ET.

PhD Candidate

• Connect ATE or embedded devices using Python drivers.

• Perform RF calibration/error correction using Scikit-RF.

• Perform automated measurements with a Sequencer.

• Or, develop an extension application.

Workflow

ATE

Get up and running fast using Automated Test Equipment (ATE):

DC Supplies
Multi-Meter
Oscilloscope
Spectrum Analyzer
Network Analyzer
Protocol Analyzer

Deploy to CM

Get your production line up and running:

Start with AOI/AXI/FPT test
Add FCT
Calculate Test Coverage
Document

Optimize for Cost

Assess Production Bottlenecks and Look for Areas to Improve

Add Production ICT Fixture
Improve Test Coverage:
- Built-In Self-Test
Improve Test Speed
- CPU/GPU/FPGA acceleration.

Let's Get
Testing!