Xiang Liu Msee, Asq Cssbb Cqe Csqe Cre Cqa Cct Email & Phone Number

Lewisville, Tx, Us

Participate as a product development team member and with technical competencies in electrical hardware, firmware and software to educate, direct, manage team activities and generate the following deliverables:• Quality Planning• Risk management• Reliability and failure analysis• Root cause analysis, problem solving, continuous improvement and related corrective and preventive action as they relate to complaints, non-conforming material, post-market surveillance (PMS), and other quality data • Input and approval for component qualifications, design verification and validation testing of new designs and design changes (including product software/firmware verification) to ensure product design quality and integrity• Develop test software in collaboration with R&D and Manufacturing Engineering, as applicable• Generate protocols, execute testing and generate reports for validation of products• Establishing Acceptance Criteria for verification and validation activities• Evaluating design changes• CAPA/NCMR investigations• Defining and ensuring compliance with applicable technical standards• Input and approval for validation of automated processes and software used in the quality system.• Input to, and development of, specifications, standards, test protocols, test reports, procedures and other documentation and records related design and development• Review specifications as the quality team member to ensure appropriate quality system compliance

St. Paul, Minnesota, Us

* Ensure that development process for implantable medical devices, handheld medical devices, and embedded software developed follows internal procedures and external standards/guidelines for design control * Participate in design and development, including Quality Planning, detailed design review, project reviews, and design verifications & validation, product/process qualification and validations, in process inspection/testing, final acceptance, etc.* Perform risk management and planning activities (HACCP, Design / Software FMECA, FTA) to ensure products and processes are safe and effective* Develop validation/qualification inspection / test plans, Write and execute design validation protocols, and reports* Review, and approve design verification protocols and reports* Review requirements (CSR, PRS, SRS), specifications (SDS, SDD, HRS), human factors, Safety and EMC, schematics, flowcharts, and recommend improvements* Review and approve schematics, PCB layout, assembly drawings, Bills of Materials* Review customer complaints, propose corrections or corrective actions, to product hardware/software design or usability issues in the defect management system* Post Market Surveillance

Lewisville, Tx, Us

* Participate in Electrical, Process Software, Firmware, and manufacturing process development from specification, requirements, schematic, design, testing, workarounds, software coding, bug fixes, etc.* Ensure design control activities are performed in compliance to appropriate internal procedures and external regulations/standards/guidelines. * Input, develop, review, execute, and approval test plans, test protocols, and test reports for software/hardware verification and validation, reliability testing, design changes, process improvements, and alternate suppliers to ensure product design quality and integrity to proactively minimize design and process problems. * Participate in risk management and health hazard assessment activities to ensure products and processes are safe and effective.* Perform root cause analysis for field returns and non-conformal materials, and make proper disposition (MRB).* Recommend product/process improvements (corrections) or Corrective and Preventive Action (CAPA) based on quality data, such as customer complaints, , post-market surveillance, risk assessment, non-conforming material records (NCMR), supplier quality data, etc.* Review specifications, drawings, and bill of materials to ensure appropriate designation, specification, dimensioning and tolerancing as they relate to inspectability.* Input, develop, review, approval, manufacture/procure, integrate, and validate internal and supplier manufacturing equipment / processes / systems (IQ/OQ/PQ), including appropriate calibration and preventive maintenance * Determine appropriate acceptance tests, inspection method, sampling plan, and develop inspection procedures* Supplier qualification, approval, audit, and related quality controls.* Quality reporting: tracking; compiling; and reporting quality metrics

Stockholm, Se

* Develop embedded hardware controls and control systems - Design, prototype, debug, and test user interface Firmware for Custom dot-matrix LED Module, PWM controlled Music Beeper, Wave Touch ® keyboard, used on Electrolux, ICON and Kenmore Elite Double cavity range products.- Involved in the PIC24 based hardware design, prototype, debug, test, integration, and evaluation- Microchip PIC24, Microchip IDE and C30* Using industry recognized new-product-design processes for electronic and software design.* Translate non-technical user requirements into specific technical solutions.* Schematic and circuit design and layout using OrCAD CAD system.

San Jose, Ca, Us

* Redesigned Digital Mass Flow Controller (DMFC) to meet RoHS requirements with improved testability and manufacturability from schematic capture, layout, debugging, testing, to RTM validation* Developed characterization test system for mass flow sensors and pressure transducers* Developed PCB functional tester with Bed-of-Nail fixture and Agilent 34970A DAQ switch unit* Implement redundant RS-485 and extended DeviceNET network for cycle test chamber to improve the system reliability, throughput, and yield* Supported other design engineers by providing hardware design turnkey solutions, from key components, functional circuits, to alternate, etc.* Coordinated with other engineers to design, review, and evaluate PCB outline, sheet metal and machined parts, test fixtures, etc.* Optimized, validated, and monitored BOMs (AML/AVL) with Arrow Connectivity Dashboard, PartMiner, CAPS Expert, CAPS Connect, web searches, etc, developed component qualification plan* Responsible for release and review of design changes, including component and assembly, provide supplier change notices (ECN / MCN) for all design changes* Sustained and improved fixtures, equipment, systems, and processes for production test, calibration, burn-in, temperature compensation, performance dynamic tuning, etc.* Responsible for returned product Failure Analysis (FA) down to component level, and provided technical support to FA and MRB technicians* Worked with technical trainer to develop, demonstrate, update, and review training documents for troubleshooting, manufacturing assembly process, test procedure, etc.* Provided technical training and on-site technical support when production line moved from California to Texas, including PCB assembly lines outsourcing to Sanmina-SCI* Work independently under minimal supervision

* Developed firmware for DFM-IV Ultra-Sonic Doppler Liquid Flow Meter, using Keil uVision IDE, Keil C51 and RTX51 (RTOS). Involved in the whole development processes, from analyze, design, prototype, implement, debug, test, integration, and evaluation.* Developed an innovative menu system with C for Dot Matrix LCD, with 5-button, states and data table driven, sustainable design, can be easily ported to other menu design.* Involved the LCD hardware interface design from specification, prototype, debug, to test.

* Involve with the complete development process of distributed 3-level Supervisory Control and Data Acquisition (SCADA) system for a battery backup UPS system (for power plant, Input AC 194-291V, Output DC 5-200A).* Develope MCU based controllers (embedded controller, AC lines, DC bus, battery monitor and switch) with standardized backbone bus interfaces and 4-slot chassis system.* Develope low lever firmware and RS-485 communication protocols.* Develope embedded controller (HW & FW) for Rectify Power Supply (10A/220V) and Multi-Function (Welder / Starter / Power Source) Power Supply (DC 200A@36V).* Develope and validate production test equipment and test procedure.* Conducte the production assembly, wiring, testing, inspection, installation, modification, and trouble-shooting.* Compose technical documents, such as specifications, BOM, and user manuals, etc.

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* Developed HIC-B10 3-Phase AC Induction Motor Speed Control System, HIC-12 MCU Based Intelligent Operator / Controller, and Signal Conditioners used in the HIC-1000 DCS Systems.* Developed the HIC-2000 SCADA System with PAC (Programmable Automation Controllers) from Specification, design, validate, to prototype.* Developed Distributed Actuator for the HIC-2000 SCADA System from Specification, design, prototype and validate.* Developed Laser Radar Controller with Atmel MCU and Lattice CPLD.* Coordinated and inspected the assembling, debugging, testing, installation, trouble-shooting of ZX7-400 VMOS DC Invert Arc Welding Power Supply (DC 400A@36V). * Participated and supported design activities, from schematic capture, prototyping, assembling, wiring, quality control, debugging, testing, testability, manufacturability, etc. * Developed multifunctional remote controller to regulate the output characteristics of power source. * Developed test equipments for PCBA and products debugging, testing, calibration, and tuning.* Composed the quality control documents based on ISO9000 standards, such as technical documents, inspection procedures (optical & functional), test plans with procedures, forms, and reports. * Responsible for the final system assembly, system testing/qualification, on-site setup, system reconfiguration, and troubleshooting of the industrial control systems, industrial PCs and networks.* Provided field service, technical training.* Provided technical support for production and customer service.

Msee, Electrical & Computer Engineering

Msee, Power Electronics & Electrical Drives

Bsee, Automation (Control System Engineering)