Selective Soldering Hot Tear: Causes and Fillet Control A hot tear is a crack or a lifted edge in a solder fillet that forms as the joint cools, and it is found after selective soldering rather than during it. The joint looked sound when the nozzle left it. The tear…

Liquid Photoimageable Resist: Coating and Imaging Control Liquid photoimageable resist is the light sensitive coating that turns artwork into a copper pattern on an inner layer or a plated pattern on an outer layer. It goes on as a liquid, is dried, is exposed through the artwork and is then…

PCB Solder Bath Specification: 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 solder bath specification gives you a practical advantage…

Wave Solder Pallet Material: Choosing for Heat and Wear Wave solder pallet is the general term for the fixture that carries a board or panel over the solder wave and shields the areas that must not be soldered. The pallet also provides mechanical support, keeps the board flat, and defines…

PCB Solder Bath Sample: A Factory-Floor Review 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 solder bath sample gives you a practical advantage when you…

PCB Solder Bath Risks: 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 solder bath risks gives you a practical advantage when you…

PCB Solder Bath Review: 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 solder bath review from the perspective of a PCBA factory floor, covering…

Component Placement Vision Alignment: Fiducials and Offset Control Vision alignment is the step in which the placement machine locates the board and the component optically before the head releases the part. It is the only closed-loop correction available during component placement, and it determines the placement offset that remains after…

Solder Paste Thawing Control: Time, Temperature and Open Time Paste thawing is the first process step of the print cycle and one of the most frequently skipped. Solder paste is stored cold to slow the chemical reactions that eventually degrade the flux, and it must return to room temperature before…

V-Cut Depth Control: Web Thickness and Blade Wear V-cut is a scoring operation in which a pair of matched blades cuts a shallow groove into both faces of a panel along the line where the boards will later be separated. The cut does not free the board; it leaves a…