What are Non-Plated through holes (NPTH)? NPTH are holes that do not have copper in the hole barrels are defined as NPTH’s. Read More
What is Nomenclature? Nomenclature is identification symbols applied to the board by means of screen printing, inkjetting, or laser processes. See Legend or Silk Screen. Read More
What is a Net-List? An ASCII list describes logical connections between component pins. Generated from schematic capture systems for transferring logical connections to layout systems. Other net-lists are generated fr Read More
What is a Multi-Layer Board? A multi-layer board is a printed board consisting of a number (four or more) of separate conducting circuit planes separated by insulating materials and bonded together into relatively thin homogen Read More
What is a Minor Defect? A minor defect is a defect that is not likely to result in the failure of a unit of product or that does not reduce the usability for its intended purpose. Read More
What are Minimum Traces & Spacing? Traces are the “Wires” of the Printed Circuit Board (also known as tracks). Spaces are the distances between traces, the distances between pads, or the distances between a pad and a trace. How Read More
What is Microvia? Microvia is usually defined as a conductive hole with a diameter of 0.005” or less that connects layers of a multi-layer PCB. Often used to refer to any small geometry connection holes created by Read More
What is Microsectioning? Microsectioning is the preparation of a specimen of a material, or materials, that is to be used in metallographic examination. This usually consists of cutting out a cross-section followed by enca Read More
What is a Metal Foil? Metal foil is the plane of conductive material of a printed board from which circuits are formed. Metal foil is generally copper and is provided in sheets or rolls. Read More
