Asamblea de PCB

¿Qué saldrá mal cuando se almacene a una temperatura más alta o después de su vida útil??

Solder paste is composed of metal micro balls and flux. The metal doesn’t change over time much, but the flux does. Any solvent that maintains flux viscosity can ‘dry up’ over time and the total mixture becomes less viscous. This is a problem in a manufacturing environment because it can lead to improper flux distribution along a footprint during the stenciling process (especially if the flux balls up or has an affinity for itself more than what it is being dispensed onto).

This is mostly a problem in large PCB assembly lines.

  • If you have any part of the process that doesn’t function well, the total production yield goes down. And you have to spend time hand-working your designs (like with a tombstone SMT part).
  • If you were producing quantities above 10000, this could become a problem very fast. So you try to control every aspect of the design to increase the yield. Bad paste isn’t something that assemblers want to deal with. Critical processes, such as medical or aerospace, will also require designers to follow expiration dates on solder.

#Asamblea de PCB

Oliver Smith

Oliver es un ingeniero electrónico experimentado y experto en diseño de PCB., circuitos analogicos, sistemas embebidos, y prototipos. Su profundo conocimiento abarca la captura esquemática, codificación de firmware, simulación, diseño, pruebas, y solución de problemas. Oliver se destaca en llevar proyectos desde el concepto hasta la producción en masa utilizando su talento en diseño eléctrico y su aptitud mecánica..

Mensajes recientes

BGA Reballing: An Essential Process in Electronics Repair and Maintenance

BGA reballing emerges as a critical repair technique for modern electronic devices. Hoy en día, dispositivos electrónicos…

6 days ago

What Are PCB Stiffeners? Exploring Their Types, Uses, and Thicknesses

Do you know what PCB stiffeners are? They are widely used in flex and rigid-flex

3 weeks ago

Why PCB Warpage Happens and How You Can Prevent It?

En el proceso de fabricación de PCB, PCB warpage is a common problem that manufacturers would encounter.

1 month ago

What Is a PCB Netlist? Todo lo que necesitas saber está aquí

In the world of printed circuit board design and manufacturing, precision and accuracy are paramount.

2 months ago

What Is Solder Wetting and How to Prevent Poor Wetting?

Soldering is a cornerstone technique in electronics assembly, it's used to connect electrical pieces and

2 months ago

7 Critical Techniques to Improve PCB Thermal Management

Hoy en día, electronic products are both compact and lightweight while performing a variety of functions. Esta…

2 months ago