CHOOSING A SURFACE FINISH FOR FINE-PITCH COMPONENTS
by CARMEN ZHENG @ www.seeedstudio.com Today we are going to share with you a real case study involving a Seeed Fusion PCBA customer’s design. At the time of placing the order, the customer requested the default HASL surface finish, but listed in their Bill of Materials was a 0.4mm BGA.
by CARMEN ZHENG @ www.seeedstudio.com
Today we are going to share with you a real case study involving a Seeed Fusion PCBA customer’s design. At the time of placing the order, the customer requested the default HASL surface finish, but listed in their Bill of Materials was a 0.4mm BGA. It’s a small BGA with only four balls in the array, but the combination of 0.4mm pitch BGA and HASL surface finish should ring alarm bells, and here’s why:
CHOOSING A SURFACE FINISH FOR FINE-PITCH COMPONENTS – [Link]
