Reading EL Images After Busbars Disappear: A Field Guide to 0BB Modules

ⓘ This article is currently published in Chinese. An English version is being prepared — read the Chinese original.

As mainstream module making shifts from multi-busbar to zero-busbar (0BB), the EL image loses a reference it used to rely on: the regular dark lines of the busbars themselves. This article walks through what actually changes when you read 0BB EL images—why broken fingers and cold joints look different without busbars to anchor on, how welded-type and film-type (SmartWire/IFC) 0BB differ on the image, and why lower crack risk does not mean skipping EL once wafers get thinner. The core message: build a 0BB-specific reading baseline instead of reusing multi-busbar habits.