SMT LEAD FORMING

• Rules of Thumb for Gullwing Footprint Layout

• Foot/Toe Position
  • The difference between toe up and toe down is the position of the tip of the foot relative to the PCB. Generally toe down works better if you/they are going to hand solder with an iron. If you/they are going to solder and reflow in an oven toe up is more desirable. The reason being most of the solder strength is in the heel fillet and using the above process maximizes that..

• Gullwing Lead Forming Minimum Edge Distances for Ceramic Parts

• Coplanarity and Standoff Height

• Common SMT Lead Forming Questions

• Dummy Components from TopLine for CERQUAD & CQFP and for FlatPacks

• Lead Forming Process and SKEW

• How Tinning Should Be Dealt With in the Lead Forming Process

• Pre Tinned Parts & How They Affect the Tools & the Lead Forming Process

• Inverted Gullwing SMT

• SMT Gull Wing

• Inverted Gullwing replaces "J" Bends on "Space" parts "C" Bend SMT

• "C" Bend on a Metal Cased Part

• Omega Bend/Camel Hump Bend
  
  
  • Omega Bend/Camel Hump bends offer superior vibration resistance and thermal expansion characteristics for ceramic or metal cased quad packs and flat packs. Fancort has dedicated tools that can process these parts to these forms in one operation, including adjustment for standoff height.