Underfill: Preparation, Placement and Process Control Underfill is the material that is drawn beneath an area array package to distribute the strain between the solder joints and the board. It is applied as a bead along the edge of the package and then flows by capillary action until the gap…

PCB Bill of Materials Control: A Practical Review for Manufacturing Teams Buyers and engineers often focus on the finished product and forget the production line behind it. In practice, most field failures can be traced back to process decisions made during assembly. Understanding PCB bill of materials control gives you…

PCB Bill of Materials Improvement: What Matters on the Production Line Buyers and engineers often focus on the finished product and forget the production line behind it. In practice, most field failures can be traced back to process decisions made during assembly. Understanding PCB bill of materials improvement gives you…

PCB Bill of Materials Environment: From Prototype to Volume Production Buyers and engineers often focus on the finished product and forget the production line behind it. In practice, most field failures can be traced back to process decisions made during assembly. Understanding PCB bill of materials environment gives you a…

PCB Bill of Materials Traceability: From Prototype to Volume Production Buyers and engineers often focus on the finished product and forget the production line behind it. In practice, most field failures can be traced back to process decisions made during assembly. Understanding PCB bill of materials traceability gives you a…

Assembly Pallet and Fixture Design for SMT Production A pallet is the carrier that holds a board through the assembly line, and a well designed one is invisible: the board sits flat, the fiducials are visible, the conveyor grips it and nothing moves. A badly designed one produces placement errors,…

Board Cleaning After Reflow in Mixed Assembly Lines Board cleaning after reflow is a line integration problem as much as a chemistry problem. The cleaner has to sit between the reflow oven and the next operation, accept the same panel size and throughput, and deliver a dry board at the…

PCB Bill of Materials Specification: Practical Process Controls Buyers and engineers often focus on the finished product and forget the production line behind it. In practice, most field failures can be traced back to process decisions made during assembly. Understanding PCB bill of materials specification gives you a practical advantage…

PCB Bill of Materials Handover: Practical Process Controls Modern electronics depend on boards that are assembled correctly the first time. Every product – a phone, a charger, a medical instrument or an industrial controller – relies on thousands of solder joints that must conduct current for years. This article explains…

PCB Bill of Materials Timing: Practical Process Controls Electronics manufacturing has become a discipline of small details. Solder paste volumes, placement accuracy, temperature profiles and inspection limits all add up to the final result. This guide looks at PCB bill of materials timing from the perspective of a PCBA factory…