Considerations for Testability Design in SMT BGA Printed Circuit Board Assembly

Considerations for Testability Design in SMT BGA Printed Circuit Board Assembly

The design differences of contact points have varying impacts on contact quality and reliability, accessibility, and subsequent solderability, which are negligible for small contact points. 1. Component Testing As the BGA pitch and solder ball size decrease, the design of socket manufacturers faces increasing challenges to adequately test BGA packages. Socket manufacturers are focusing on … Read more

Considerations for Component Placement and Spacing in SMT BGA PCB Assembly Design

Considerations for Component Placement and Spacing in SMT BGA PCB Assembly Design

To facilitate rework, it is recommended to provide sufficient spacing (3mm to 5mm) around the BGA. It is advisable to adopt the upper limit of the spacing, especially when CBGA uses a stepped stencil for solder paste deposition and when hot air is used for rework. However, if a diode laser system is used for … Read more