Working at Hemlock Semiconductor | Glassdoor

Hemlock Semiconductor Overview

Hemlock, MI
501 to 1000 employees
Company - Private
Industrial Manufacturing
$1 to $2 billion (USD) per year
Hemlock Semiconductor (HSC) is a committed, reliable and proven supplier of high-purity polysilicon for the electronic and solar power industries, enabling customers to produce high-tech electronics and solar panels. As the raw material used to create semiconductors, polysilicon ... Read more

Company Updates

  • For Steven Holty, being named the new Sustainability Leader for Hemlock Semiconductor Operations (HSC) is just the latest in a series of challenges he has enthusiastically met and conquered. Steven's latest role is to lead HSC's transformation to a more sustainable solar energy future by advancing the company's Greenprint initiative. He is responsible for helping to create a sustainability strategy and road map for HSC, identify sustainable priorities and strategies and develop new goals and metrics to measure HSC's progress. Steven brings a track record of success to his new role. He has led over 50 projects, programs and rapid continuous improvement undertakings at HSC. His efforts have won five awards, and he has led numerous projects as a Six Sigma Black Belt and Team Leader. He hopes his career epitaph will read: Steven took on challenging leadership roles and we had fun working together! Steven has been with HSC since 2005 after starting in 1998 as an engineer at heritage Dow Corning Corp. He's married to Alicia Christopher and they're raising their 3 children in Midland.

  • HSC employees have access to an on-site fitness facility, and our Fitness Facility Committee plans additional perks, including competitions and physical evaluations by trainers in the region. Learn more from HSC's Chasen Filcek.

See AllSee All

Hemlock Semiconductor – Why Work With Us?

Hemlock Semiconductor Site

Hemlock Semiconductor is the only U.S.-based high-purity polysilicon producer in the world. The experience and technology we’ve developed since our start in 1961 have allowed us to develop a safe, efficient, sustainable and cost-effective process to manufacture this highly critical material. We put a strong emphasis on public safety and take pride in being an involved and active community leader in the Great Lakes Bay region.

As the largest producer of high-purity polysilicon in the United States, Hemlock Semiconductor draws on the talents of more than 650 employees to provide the material critical to two high-tech, high-growth industries: electronics and solar energy. We provide a technically challenging and supportive environment for all employees. 

Our Purpose

We transform people’s lives by energizing and connecting our world through silicon technology.

Our Mission

To be the preferred polysilicon suppliers to the semiconductor and solar industries. 

Our Vision

To be a family-friendly, community-oriented high-tech employer whose employees and products have a positive effect on the world.

A strong commitment to sustainability

As a company dedicated to a more sustainable solar energy future, we encourage all of our team members to help lead this transformation in ways big and small. Through shared learning and a relentless commitment to our planet, our people and what is possible in clean manufacturing, you can play a role in how we connect and energize the world.

  • The work we do each day contributes to the sustainability of society, the economy and our environment.
  • We add value for our customers through reliability, sustainability and support.
  • We listen, understand and act to meet our customers’ needs, exactly.
  • We partner with our communities to help make the places where we live, work and play better for all.
  • We contribute to the education of tomorrow’s generations.
  • We put safety first, both for our employees and for our neighbors

Learn more

To learn more about Hemlock Semiconductor and search our jobs list, visit


How polysilicon is made

High-purity polysilicon from Hemlock Semiconductor is used to make semiconductors that power cell phones, computers and the technology of the future, where the Internet of Things and artificial intelligence meet in new products such as autonomous vehicles. Hemlock Semiconductor also is moving the world toward a greener future by supplying polysilicon, a fundamental building block for solar panels, to the solar power industry.

About Polysilicon

Polysilicon is a hyper-pure form of the element silicon found in the Earth’s crust. In fact, at a 99.999999999% purity level, our employees perform a key purification step in the manufacturing of the purest substance on the planet. That’s like allowing no more than one grain of sand inside 16 Olympic sized swimming pools!

To make polysilicon, we pump trichlorosilane gas into a reactor fitted with thin silicon starter rods. When we activate our reactors with electricity, the silicon part of the gas molecules sticks to the rods, creating thicker rods of polysilicon.

Afterwards, we break the rods into smaller chunks that are sent to manufacturers around the world and serve as the building blocks to computer chips and solar panels.


At Hemlock Semiconductor, you really matter

You’re the source of all of our ideas, actions and performance.

So, just as we listen to our customers, we listen to you. We work hard to understand what you need and provide you with a flexible work-life environment. 

An open, relaxed atmosphere

As a Hemlock Semiconductor employee, you’re part of a results-oriented team that sincerely cares about its members and approaches the job with pride, integrity and humility. Our Employee Engagement, New Hire and Fitness committees work to create fun ways for employees to connect and stay healthy. 

A place invested in your professional development

We supply the opportunities, coaching and mentoring to help you achieve your professional goals. This is a high-performing culture where talent and hard

work matter. We encourage you to take on new responsibilities, get out of your comfort zone and explore a variety of tasks and career paths.

The right size company

Hemlock Semiconductor is the kind of place where you can address everyone – across all levels of the company – by their first names. It’s a company where you can ask questions, take risks and make a difference. 

A family-friendly, community-oriented culture

Hemlock Semiconductor provides a family-friendly, community-oriented high-tech work environment where employees have fun together. As a company, we support community programs and projects and empower our employees to make a difference in the Great Lakes Bay region by actively volunteering.

Benefits for you and the people you care for

In addition to a competitive total compensation package, including base pay and a unique goal-driven incentive pay program, you have access to a vast array of benefit choices in the area of health and well-being, finances, professional development and work-life balance.

Hemlock Semiconductor team receives award

At Hemlock Semiconductor, employees get to work with leading experts in the high-purity polysilicon field and to help the company grow. Our people serve the world’s leading solar and semiconductor companies as we manufacture a high-quality product, drive company performance, innovate, and collaborate to improve continuously. We employ the specialized experts to operate effectively, efficiently and safely to deliver premier service and know-how.

Science & Technology

Our experts constantly innovate to improve manufacturing processes, advance technology and ensure quality. We employ scientists and technical professionals in a wide variety of roles including physics, materials science, feedstock quality assurance, advanced analytical, quality testing and dedicated functions to support technical customer needs.

Manufacturing & Engineering

We employ top graduates and experienced professional chemical, mechanical and electrical engineers and certified chemical process operators in development, manufacturing, maintenance and improvement roles across our site. We work as a team to ensure our state-of-the-art processes remain up and running safely, become increasingly efficient and produce an ultra-pure product.

Process Safety & Security

Our site, community and employee safety are critical, so we regularly hire safety and security professionals to manage our world-class processes. They ensure operational excellence and security from the time we receive raw materials until our products reach our customers.

Customer Service, Supply Chain, Procurement & Information Technology

Our commercial and functional professionals lead activities in customer service, supply chain, procurement and information technology with an end-to-end approach to ensure efficiency and customer satisfaction.

Skilled Trades

HSC has some of the best-skilled tradesmen in the business. We employ specialized experts in a variety of roles to build, operate and maintain our world-class facility. These same experts work closely with manufacturing and engineering leaders to ensure our team is focused on driving productivity, continually innovating and working with a complete commitment to safety.

2018 HSC Annual Impact Award winners
Swan Valley & Thomas Townships' Beautification Day

HSC helps energize and transform our world through silicon technology. As a family-friendly, community-oriented employer, we're actively involved in helping build better communities in the Great Lakes Bay region and empower our employees to make a difference by volunteering together, serving on boards, and helping raise money to support local organizations. 

As one of the largest employers in the Great Lakes Bay region, we care about tomorrow's workforce, too. Hemlock Semiconductor works with area high schools, community colleges and jobs programs to support youth and STEM education and make sure area residents have the skills they need to work at the high-tech jobs of the future.

Community and Regional Empowerment (CARE) Fund

As part of our goal to improve the quality of life throughout the Great Lakes Bay Region, Hemlock Semiconductor Operation’s Community and Regional Empowerment (CARE) Fund provides up to $30,000 for local projects and programs. Schools, units of government and local groups with 501(c)(3) designation can apply for grants through the Bay Area Community Foundation, Midland Area Community Foundation or Saginaw Community Foundation. Apply or learn more through your local community foundation:

Fire Academy Sponsorships

At HSC, we’re committed to safety for our employees, their families and our neighbors. HSC has 27 volunteer firefighters and first responders on staff, and we support responders in neighboring communities by donating equipment and providing hands on training at our facilities. 

To expand safety training in our community, HSC offers Fire Academy Sponsorships to local fire departments to cover the cost of sending enrollees to local fire academies to receive their Michigan Firefighter I&II training. The grants are available to fire departments in Saginaw, Bay, Midland and Gratiot counties. HSC's Contribution Committee reviews applications and awards the grants. 

HSC Adopt-A-Road Cleanup

Hemlock Semiconductor Reviews

  • "Great place to work"

    • Work/Life Balance
    • Culture & Values
    • Career Opportunities
    • Comp & Benefits
    • Senior Management
    Current Employee - Mechanical Engineer in Hemlock, MI
    Current Employee - Mechanical Engineer in Hemlock, MI
    Neutral Outlook
    Approves of CEO

    I have been working at Hemlock Semiconductor full-time (More than a year)


    I like the atmosphere here


    Location is not great. No near by cities.

See All 52 Reviews

Hemlock Semiconductor Photos

Hemlock Semiconductor photo of: 2019 Annual Cornhole Tournament
Hemlock Semiconductor photo of: Hemlock Semiconductor Employee Fitness Facility
Hemlock Semiconductor photo of: Hemlock Semiconductor Dining and Community Area
Hemlock Semiconductor photo of: 2019 Take Your Family to Work Day
Hemlock Semiconductor photo of: Hemlock Semiconductor Headquarters
Hemlock Semiconductor photo of: Humane Society of Midland County Partnership | Puppies Visit HSC
See All PhotosSee All

Hemlock Semiconductor Interviews



Getting an Interview

Getting an Interview




  1. Featured Interview


    Chemical Engineer Interview

    Anonymous Interview Candidate in West Lafayette, IN
    No Offer
    Positive Experience
    Average Interview


    I applied through college or university. The process took 2 days. I interviewed at Hemlock Semiconductor (West Lafayette, IN) in September 2019.


    The interview was a lot of personality questions and then a portion at the end for you to ask questions. The interview is about 45 minutes long and and all similar kinds of questions.

    Interview Questions

    • Name a time when you had to work on a team with someone difficult.   Answer Question
See All 8 Interviews

Hemlock Semiconductor Awards & Accolades

  • TIBCO Impact Award, TIBCO, 2019
  • Michigan Energy Innovators Project of the Year award, Michigan Energy Innovation Business Council, 2018

Pledges & Certifications

Pay Equality Pledge

Committed to paying equitably for equal work & experience

Work at Hemlock Semiconductor? Share Your Experiences

Hemlock Semiconductor
  • Star
  • Star
  • Star
  • Star
  • Star
Click to Rate