California State University-Chico

Hardware Development Engineer at Apple

Fremont, California, United States

Apple

Hardware Development Engineer

Mechanical Engineer for the Etch Engineering DivisionTasks:• Lead engineer for a major sub assembly for the company's new product line.• Designed high precision components for plasma critical applications.• Designed and developed consumable hardware for a product line that increased its service life by 33%.• Designed components for alternative manufacturing methods like casting and molding.• Experienced in designing parts in a variety of materials including metals, plastics and brittle materials like ceramics and quartz.• Extensively worked on CAD packages like Siemens NX, Nastran, Maya Heat Transfer and the Team Center PLM. • Created tolerance stack ups to analyse and predict the mechanical behavior for complicated assemblies. • Worked on designs from concept to final product.• Evaluated the design's mechanical performance using thermal and structural FEA.• Interfaced with a variety of suppliers, both local and overseas during design and development for cost effective designs.• Created DFMEA's for designs to identify, evaluate and mitigate risks.

Lam Research

Senior Mechanical Engineer

Worked with Mechanical Engineering team to provide an automated solution for canopy tracking for the Olive Harvester projectInvolved in the further design, development and testing of the Automated Tomato Transplanter projectRelated Projects:• Olive Harvester:									      - Developed designs based on customer requirements- Provided a Mechanical Engineering Senior Project Team with guidance on satisfying power requirements, controller setup and wiring of the system- Custom designed a embedded component involving PIC microcontroller and Digital to Analog converter to analyze analog signals from a custom built sensor system for canopy tracking.- Designed an Automated Cooling System using PIC microcontroller - Utilized C language, MPLAB IDE and Orcad PSpice to develop embedded component- Wrote code for RS232 communications and 3 Wire communications between devices- Designed wireless control system: developed software using Visual C# and C, designed custom interface circuit to hydraulic controllers. • Automated Tomato Transplanter: 	  - Developed designs based on customer requirements - Developed a calibration code to adapt green sensing camera for varying light conditions- Conceptualized and redesigned a plant extraction system to improve speed and efficiency- Developed Solid Models using Solid Works, programmed         system

Hiran Rathnasinghe

Hiran Rathnasinghe