What is the of your hardware (e.g., IPC Class 2 consumer or Class 3 aerospace)?
Pads must extend slightly beyond the component package edge to facilitate the formation of a solder fillet, which assists in visual and automated optical inspection (AOI).
Recommendations for soldering processes, including stencil and paste mask design I-Connect007 Reliability & Testing
Detailed guidance on using Automated X-ray Inspection (AXI) , which is essential since the solder joints of BTCs are not visible to the naked eye or standard optical inspection.
Recommendations for low-voiding solder paste formulations. ipc-7093a pdf
Step-by-step processes for integrating BTCs into PCB layouts, including optimal thermal pad design, thermal via implementation, and solder stencil design.
The standard is widely used by PCB designers, process engineers, and quality managers. You can obtain the official document in several formats:
IPC-7093A is a peer-reviewed industry standard published by IPC (Association Connecting Electronics Industries). It provides comprehensive guidelines for designing and assembling printed board assemblies that utilize Bottom Termination Components. Defining Bottom Termination Components (BTCs)
The IPC-7093A standard!
If open vias must be used, IPC-7093A provides specific guidance on via diameter (typically 0.3 mm or smaller) and pitch to minimize solder loss.
When sourcing or downloading an official , always ensure you are acquiring it through authorized IPC channels or licensed distributors. This guarantees access to the latest revisions, technical amendments, and complete high-resolution design diagrams required for compliance. To help me provide more specific details, let me know:
: Techniques for evaluating solder joints that are hidden beneath the package, specifically the use of Automated X-ray Inspection (AXI) .
Program your automated x-ray inspection (AXI) machine to flag: What is the of your hardware (e
Solder paste volume control is the single most critical factor in BTC assembly reliability. IPC-7093A recommends:
The Evolution of IPC-7093A: Standards for Bottom Termination Components (BTCs)
For those seeking formal certification or in-house implementation, the official document can be purchased directly from the IPC Store or its authorized distributors.
When you obtain the , you will find it organized into logical sections. Here is a breakdown of the critical content: Recommendations for low-voiding solder paste formulations
Elena saved the to the company's shared server, labeling it "Required Reading."