Microchip Design
- Responsibilities included design of mixed signal automotive magnetic speed and direction sensors and leading cross-discipline development teams on two products.
- Automotive safety mechanism design.
- Top-level product verification.
- Safety analysis of automotive functional safety products.
- Development of safety analysis best practices.
- medini analyze workflow path-finding and integration.
Analog Integrated Circuit Designer
- Open Drain Output
- Mixed Signal Control Systems
- ADC
- DAC
- Linear Regulator
- Charge Pump
- LC Oscillator
- Ring Oscillator
Circuit Design Experience
Senior Functional Safety Engineer
- Responsibilities included leading cross discipline teams to implement tools and processes to improve development efficiency and comply with ISO 26262 automotive functional safety standard.
- Development and deployment of company wide standardized failure analysis library in medini analyze.
- Role based functional safety training curricula creation.
- Online functional safety training module creation and deployment via TalentLMS.
- Production and distribution of automated medini analyze verification installer for software tool qualification.
- Perform confirmation reviews, audits, and assessment on ASIL C & D compliant products
Electrical Engineering Master's Thesis
Abstract
The progression of technology has required smaller devices to achieve faster circuits and more power-efficient systems. However, with supply voltage and device intrinsic gain decreasing, device biasing in deep sub-micron technologies can be challenging. A low-voltage current source is analyzed in a 28 nm CMOS, 0.85 V supply, technology to take into account undesirable effects introduced by aggressively scaled technologies. The analysis includes intrinsic gain degradation as well as short-channel effects to create a more accurate design methodology. Amplifier design challenges in deep sub-micron technologies are discussed along with a DAC bias correction technique. Frequency dependence of output resistance for a simple and a
proposed current source is presented. For the proposed current source the frequency dependence of output resistance was found to be dictated by the frequency response of the amplifier. To demonstrate the relevance of current
source resistance bandwidth a common-mode logic circuit is considered, and fabrication plans are discussed along with future work.
7-bit Current Steering DAC
The conception of a digital to analogy converter (DAC) was first documented in a water supply system form the Ottoman Empire [3]. Since then the DAC has moved into electronics and has been widely used in many applications ranging from motor control to communications. These circuits have a wide variety of different architectures each with their own strengths and weaknesses. The design of a 7-bit current steering DAC in .5μm was the primary focus of the work presented. In order to meet the desired specification a segmented architecture was used. With the architecture chosen the constraints for each sub-circuit were derived and the design process started. The silicon layout of the DAC was then pursued to prepare the system for fabrication.
Patents
Automotive Functional Safety Speed Sensor Self-Diagnostic and Test Circuitry
Automotive Functional Safety Self-Diagnosing and Healing Open Drain Output
Automotive Functional Safety Speed Sensor Self-Diagnostic and Test Methodology
