Ian Williams, Linear Applications Engineer at Texas Instruments tackles printed circuit board (PCB) solder flux issues that affect circuit functionality in a recent blog entry. When troubleshooting non-functional or poorly performing circuits, engineers often run simulations or other analyses that consider the circuit at the schematic level. If these methods fail to resolve the issue, even the best engineer might be left feeling stumped, frustrated, or confused. I’ve felt this pain myself. To prevent you from reaching a similar dead end, I present to you one simple, but crucial, tip: keep it clean!