What’s eWLB? Embedded Wafer Level Ball Grid Array (eWLB) is a packaging technology for integrated circuits (ICs), a variation of WLCSP. The package interconnects are applied on an artificial wafer made of silicon chips and a casting compound. …
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Electronic Glossary
Excellon Format
What Is Excellon Drill Format in PCB? Excellon Format, or Excellon Drill Format, is designed to drive CNC drilling and routing machines. It is a subset of RS274D, and is considered an industry drill standard. The Gerber format has …
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Extra Press Cycles
Extra Press Cycles always applied for multi layer boards with blind vias and/or buried vias. A standard multi layer PCB passes one time through the pressing cycle. When producing multilayer circuit board with blind and/or buried vias, it can be …
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Fab Drawing
A drawing used to aid the construction of a PCB board. It shows all of the locations of the holes to be drilled, their sizes and tolerances, dimensions of the board edges, and notes on the materials and methods to …
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Fab Notes
Fab Notes, also known as Fabrication Notes, are a collection of notes that accompany PCB data files (Gerber files or some other data file) as a text file, or are provided as in a drawing of the PCB itself that …
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Fabrication Drawing
PCB Fabrication Drawing is a drawing used to aid the construction of a printed circuit board. It shows all of the locations of the holes to be drilled, their sizes and tolerances, dimensions of the board edges, and notes on …
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FAI
First Article Inspection (FAI) is a complete, independent, and documented physical and functional inspection process. The SMT first article assembly process in whole circuit board assembly is a very important step.
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