UST
Package Design Engineer – Associate III – Product Design
Born digital, UST transforms lives through the power of technology. We walk alongside our clients and partners, embedding innovation and agility into everything they do. We help them create transformative experiences and human-centered solutions for a better world.
Who We Are UST is a mission-driven group of 29,000+ practical problem solvers and creative thinkers in more than 30 countries. Our entrepreneurial teams are empowered to innovate, act nimbly, and create a lasting and sustainable impact for our clients, their customers, and the communities in which we live.
Intended Opportunity
Perform the design and development of multi‑layer package substrates (8+ layers) for advanced semiconductor devices.
Perform package layout, routing, and stack‑up planning using EDA tools (Mentor Graphics, Cadence Allegro, PLA).
Ensure designs comply with substrate manufacturing rules (trace width/spacing, via design, impedance requirements).
Incorporate assembly rules (die placement, bump/ball pitch, solder joint reliability, warpage control) into package designs.
Develop and validate Flip Chip package designs, including bump assignment, redistribution layers (RDL), and underfill considerations.
Collaborate with Signal Integrity (SI), Power Integrity (PI), and thermal analysis teams to ensure robust performance.
Partner with substrate vendors and OSATs to verify design manufacturability, yield, and assembly feasibility.
Provide on‑site vendor support when required to resolve design and assembly issues.
Qualifications
Bachelor’s or Master’s degree in Electrical Engineering, Electronics, Materials Science, or related field.
5–8 years of hands‑on experience in package design, with proven expertise in multi‑layer (8+) substrate design.
Proficiency with EDA tools: Mentor Graphics, Cadence Allegro, PLA.
Strong knowledge of substrate manufacturing rules and assembly rules.
Experience with Flip Chip package design methodologies.
Familiarity with SI/PI/thermal considerations in advanced packages.
Strong communication and collaboration skills for cross‑functional and vendor engagement.
Flexibility to travel and provide on‑site vendor support as needed.
Compensation and Location Role Location: California Compensation Range: $73,000–$110,000
Benefits Full‑time, regular employees accrue a minimum of 10 days of paid vacation per year, receive 6 days of paid sick leave each year (pro‑rated for new hires throughout the year), 10 paid holidays, and are eligible for paid bereavement leave and jury duty. Employees are eligible to participate in the Company’s 401(k) Retirement Plan with employer matching. They and their dependents residing in the US are eligible for medical, dental, and vision insurance, as well as the following Company‑paid Employee Only benefits: basic life insurance, accidental death and disability insurance, and short‑ and long‑term disability benefits. Regular employees may purchase additional voluntary short‑term disability benefits, and participate in a Health Savings Account (HSA) as well as a Flexible Spending Account (FSA) for healthcare, dependent child care, and/or commuting expenses as allowable under IRS guidelines. Benefits offerings vary in Puerto Rico.
Equal Employment Opportunity Statement UST is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other applicable characteristic protected by law. We will consider qualified applicants with arrest or conviction records in accordance with state and local laws and “fair chance” ordinances. UST reserves the right to periodically redefine your roles and responsibilities based on the requirements of the organization and/or your performance.
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Who We Are UST is a mission-driven group of 29,000+ practical problem solvers and creative thinkers in more than 30 countries. Our entrepreneurial teams are empowered to innovate, act nimbly, and create a lasting and sustainable impact for our clients, their customers, and the communities in which we live.
Intended Opportunity
Perform the design and development of multi‑layer package substrates (8+ layers) for advanced semiconductor devices.
Perform package layout, routing, and stack‑up planning using EDA tools (Mentor Graphics, Cadence Allegro, PLA).
Ensure designs comply with substrate manufacturing rules (trace width/spacing, via design, impedance requirements).
Incorporate assembly rules (die placement, bump/ball pitch, solder joint reliability, warpage control) into package designs.
Develop and validate Flip Chip package designs, including bump assignment, redistribution layers (RDL), and underfill considerations.
Collaborate with Signal Integrity (SI), Power Integrity (PI), and thermal analysis teams to ensure robust performance.
Partner with substrate vendors and OSATs to verify design manufacturability, yield, and assembly feasibility.
Provide on‑site vendor support when required to resolve design and assembly issues.
Qualifications
Bachelor’s or Master’s degree in Electrical Engineering, Electronics, Materials Science, or related field.
5–8 years of hands‑on experience in package design, with proven expertise in multi‑layer (8+) substrate design.
Proficiency with EDA tools: Mentor Graphics, Cadence Allegro, PLA.
Strong knowledge of substrate manufacturing rules and assembly rules.
Experience with Flip Chip package design methodologies.
Familiarity with SI/PI/thermal considerations in advanced packages.
Strong communication and collaboration skills for cross‑functional and vendor engagement.
Flexibility to travel and provide on‑site vendor support as needed.
Compensation and Location Role Location: California Compensation Range: $73,000–$110,000
Benefits Full‑time, regular employees accrue a minimum of 10 days of paid vacation per year, receive 6 days of paid sick leave each year (pro‑rated for new hires throughout the year), 10 paid holidays, and are eligible for paid bereavement leave and jury duty. Employees are eligible to participate in the Company’s 401(k) Retirement Plan with employer matching. They and their dependents residing in the US are eligible for medical, dental, and vision insurance, as well as the following Company‑paid Employee Only benefits: basic life insurance, accidental death and disability insurance, and short‑ and long‑term disability benefits. Regular employees may purchase additional voluntary short‑term disability benefits, and participate in a Health Savings Account (HSA) as well as a Flexible Spending Account (FSA) for healthcare, dependent child care, and/or commuting expenses as allowable under IRS guidelines. Benefits offerings vary in Puerto Rico.
Equal Employment Opportunity Statement UST is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other applicable characteristic protected by law. We will consider qualified applicants with arrest or conviction records in accordance with state and local laws and “fair chance” ordinances. UST reserves the right to periodically redefine your roles and responsibilities based on the requirements of the organization and/or your performance.
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