Crystal Han Email & Phone Number

Conshohocken, Pa, Us

• Leading a project team for solar cell conductive silver paste development and customization silver paste for various customers outside of China. Awarded for supporting one of the largest and most technically demanding customer, developed a new paste formulation which beat prior benchmark, as well as new generation products from all competitors• Working closely with cross-function team including technical service, sales and scale up team on New Product Introduction, successfully designed in >5 products• Regularly visit international customers( south east Asia, Korea, Germany), built good relationship with top tier customers• Experienced in IP reviewing and monitoring in metal powder, glass frits, organic and silver paste field, controlling IP cost and reducing IP risk

Conshohocken, Pennsylvania, Usa

• Conducted glass frits research and development for silver paste, successfully formulated and designed into the “Flagship” commercial silver paste with improved adhesion and solar cell efficiency, created $50 million sales in 2018• Demonstrated experience in material (glass frits, silver powder, vehicle, and silver paste) analysis using viscometer, rheometer, SEM-EDX, TGA-DSC, PSD and XRD, supporting hands-on backgrounding in screen printing and high temperature co-firing• Oversaw alpha testing, visited international customers (most Chinese), and conducted on site test, understanding customer requirements and issues, and worked with cross- functional team including technical service, sales, and scale up team, solving customer issues and introducing new generation product

Hanau, Hessen, Germany

• Led the development work of silver paste for emerging “metal wrap through” solar cell, designed special test method to evaluate the silver paste performance. The silver paste significantly reduced the shunt resistance through silver, additives and vehicle modification• Hands on experience in three roll milling, screen printing and solar cell analysis• Worked directly with Asian and European customers to understand specific customer requirements for paste formulation and further modification• Acted as European technical support liaison for Asian customers, including new product introduction, trouble shooting, as well as partnership development

Shanghai, China

• Provided technical support for the application of silver paste, including process optimization, root cause analysis and improvement at customers’ site. Successfully designed in several new generation silver paste and improved customers’ solar cell efficiency• Successfully built sales at the top 5 solar cell manufacturers in China with an annual sales revenue in excess of 300 million USD• As the very first and only technical sales engineer, bridged the gap between Asian customers to US R&D center with reliable and detailed feedback

Beijing, China

• Optimized the solar cell manufacturing process to improve cell efficiency and saved manufacturing cost• In charge of evaluating silver paste from various vendors for the screen printing process• Responsible for the communication and cooperation between production and research centers

Master Of Science - Ms, Material Science

Bachelor Of Science - Bs, Chemical Engineering