Issue link: https://iconnect007.uberflip.com/i/1460418
76 PCB007 MAGAZINE I MARCH 2022 of mainstream technology improvements. As the size of chips and optical distance becomes increasingly smaller, the assurance of a product's reliability has put even stricter demands on the reliability of the whole supply chain. A deviation that was acceptable before has become intolerable. As seen in Figure 1, with the same deviation, the effective soldering area has reduced from 50% to only 5%. To improve the performance rate and the effectiveness of the LED die bonder, PCBs must have products with sizes that are more stable. Feature Article by Aaron Chen WAZAM NEW MATERIAL CO. LTD. In 1980, FR-4 was used in about 90% of the materials used to make PCBs. Over time and as technology developed, electronic devices relentlessly integrated into every area of our lives. e constant acceleration of upgrading meant endless challenges and opportunities for CCL suppliers. Wazam New Material Co. Ltd., is a CCL supplier that strives to meet the needs of its end customers and provide com- prehensive solutions. One example is the mini backlight unit (MBLU) application material. Since 2021, mini LED backlight has become the focus Material Application for Mini Backlight Unit Figure 1: With the same deviation, the effective soldering area has been reduced from 50% to 5%. (Source: ASM Pacific)