Ipc-7527 Pdf |top| -

: Major requirement is function of the completed assembly.

Released in May 2012, the standard consists of roughly 23 pages of detailed criteria and photographic examples. It follows the standard IPC three-class system:

: The ideal target condition where the paste matches the stencil aperture. ipc-7527 pdf

: Continued high performance or performance-on-demand is critical; equipment downtime cannot be tolerated (e.g., aerospace, healthcare). Visual Criteria for Deposits

: Pads appearing bare or thin, leading to weak solder joints. : Major requirement is function of the completed assembly

The standard categorizes deposits into four primary shapes to help inspectors judge quality:

: Often seen in specific types of paste or print speeds. equipment downtime cannot be tolerated (e.g.

: Paste spilling over edges or connecting two separate pads.