Develop, execute, and continuously improve the factory quality management systems. Scope includes the change management business process, nonconforming material management, incoming quality, product quality, and continuous improvement. Manufacturing quality teams are involved in developing FMEAs which define process control plans and the statistical process control system. Manufacturing quality teams also serve as a direct interface to the factories for customer quality engineers and business units.
The quality of our products is our top priority. Our quality policy is to meet the needs and expectations of our customers, be dedicated to continual improvement, and ensure a full commitment to our corporate values.
For more than thirty years, Wolfspeed has led the industry with top-of-the-line products for power and radio frequency (RF) applications. Quality management and compliance with industry and customer standards ensure we exceed customer expectations and deliver on the promise of Silicon Carbide.
Quality Policy - WIN with Quality
We expect our employees and suppliers to maintain Wolfspeed’s corporate values. Quality is more than just ensuring a great product. We are committed to the highest standards of work and behavior and strive for proactive continuous improvements.
Wolfspeed’s quality team is customer focused and works closely with our customers to understand their needs and expectations. We ensure business and manufacturing coordination to enable high-quality products that meet our customers’ requirements. Customer satisfaction and responsiveness are key measures of our success.
All our products must satisfy industry standards, our customers’ expectations, and our own. We test our products and simulate them in harsh environments to confirm their reliability. We follow, AEC, IATF, ISO9001, AS9100, and JEDEC standards. Wolfspeed has representation on key industry and technical committees to drive more specific Silicon Carbide requirements.
Quality Management System
Having descriptive policies for all our business and product processes is how we fulfill excellence through quality. Our team ensures that everywhere along the product lifecycle, there is coordination in all activities and tasks. A great quality management system allows us to be confident in our business practices and our manufacturing facilities. Additionally, our quality management philosophy fosters long-term improvements through customer satisfaction and feedback.
Quality Roles & Responsibilities
Oversee the effectiveness of the overall Quality Management System (QMS). Responsibilities include administration of the enterprise-wide QMS software, coordination of the internal and certification audits, governance of quality documentation, leading product compliance program, and oversight of product change notification (PCN), end of life (EOL), production part approval process (PPAP), quality alert, and waiver request processes.
The Supplier Quality Engineering (SQE) Team is comprised of SQEs with backgrounds in Engineering, Semiconductor and SMT processes and Materials, with experience in Automotive, Telecommunications, and Aerospace industries. In coordination with our Supply Chain and Operations Engineering teams, the SQE strives to ensure that suppliers and contractor partners are capable and perform to customer requirements.
Customer Quality Engineers (CQEs) are responsible for managing and continuously improving the quality in our Business Units. CQEs work together with the development group and production to reduce risk during each step of the process and makes sure the voice of the customer (or customers’ specification) is heard from concept to delivery to customer. CQEs work alongside Failure Analysis (FA) engineers, Regional Customer Quality Engineers (RCQEs), Field Application Engineers (FAEs), and internal stakeholders to address customers’ concerns promptly and use Failure Analysis results to create comprehensive diagnosis reports.
Regional Customer Quality Engineers (RCQEs) are responsible for driving alignment of customer and Wolfspeed quality requirements. They act as the primary quality representative for Regional (e.g. EMEA) customers, responsible for coordinating efforts within Wolfspeed to respond to customers’ quality inquiries and issues. They also support local Sales organization to facilitate new business opportunities.
Field Application Engineers (FAEs) are customers’ go-to resources for integration, quality, maintenance, and routine check-ups. They are responsible for customer quality support, providing technical solutions for product implementations and working with engineers to resolve issues.
The Failure Analysis (FA) team conducts physical and electrical analysis relate to customer concerns. Failure Analysis engineers collaborate with cross-functional teams and propose preventative measures from discovered root cause.
Supplier & Contractor Management
Our risk-based selection process includes requirements for Quality Management System certification, on-site audits (Approved Supplier List (ASL) qualification, process readiness), and PPAP approvals as required. A comprehensive assessment of all ASL suppliers is conducted periodically to identify high-risk suppliers and associated action plans.
- Minimum requirements for direct suppliers
- ISO 9001 certified quality system
- Critical automotive suppliers are required to be certified to IATF 16949
- Rapid response to quality incidents with specific target to automotive and commercial
Supplied item/product specifications and requirements are formally communicated and agreed upon by our supplier and contractor partners. Change management is treated as critical and outlined in our Purchase Order (PO) terms, supplier quality agreements, and managed through our Supplier Process Change Notification (PCN) and internal Process Change Review Board (PCRB)processes. Strategic suppliers are reviewed regularly through scorecards summarizing their performance in the area of quality, on-time delivery, cost, and service.
Product Change Notification (PCN)
Wolfspeed’s change management process evaluates the risks and benefits of changes to ensure the best continuity of supply for our customers. Change proposals are analyzed by the Product Change Review Board (PCRB). This board is comprised of a multidisciplinary team of experts who evaluates then classifies, approves or rejects the change request.
To meet its customer needs and expectations, Wolfspeed complies with the requirements for timely notification in JEDEC J‐STD‐046 latest edition.
The PCN policy also refers to the "Guideline for Customer Notifications of Product and /or Process Changes (PCN) of Electronic Components specified for Automotive Applications" (Rev. 4.0, December 2019) issued by ZVEI.
End of Life (EOL)
Before terminating a product, we evaluate the effects and potential alternatives to ensure customer supply.
An EOL PCN will be sent out to Wolfspeed's customers at least 6 months and 12 months before the last order date and the last ship date, respectively, of the affected products. The customers are urged to acknowledge receipt of the PCN and submit purchase orders as early as possible.
Wolfspeed complies with the latest version of J‐STD‐048 standard.
ISO 9001 and IATF 16949 Certificates
We are currently constructing the world’s largest Silicon Carbide fabrication facility in Marcy, New York. This brand new, state-of-the-art power wafer fabrication facility will be automotive-qualified and 200mm-capable. It is complemented by our mega materials factory expansion currently underway at our Durham, North Carolina headquarters. Our Capacity Expansion Plan will allow us to efficiently respond to customer demands, implement quality strategies to further our quality culture, as well as invest in the people, processes, and systems necessary to achieve that level of scale. Our strategy is to integrate our people, systems, and culture to drive quality as a competitive advantage.