What is Inkjetting? Inkjetting is the dispersal of well-defined ink “dots” onto a PCB. Inkjet equipment uses heat to liquefy a solid ink pellet and change the ink into a liquid, which is then dropped via a nozzle Read More
What is Impedance? Impedance is the total passive opposition offered to the flow of electric current. This term is generally used to describe high-frequency circuit boards. Read More
What is Imaging? Imaging is the process by which panelization data are transferred to the photo plotter, which in turn uses light to transfer a negative image circuitry pattern onto the panel. Read More
What is Hot Air Solder Leveling (HASL)? HASL is a method of coating exposed copper with solder by inserting a panel into a bath of molten solder then passing the panel rapidly past jets of hot air. Read More
What is a Hole Pattern? A hole pattern is the arrangement of all holes in a printed board with respect to a reference point. Read More
What is a Hole Breakout? A hole breakout is a condition in which a hole is partially surrounded by the land. Read More
What is HDI (High Density Interconnect)? HDI is ultra fine-geometry multi-layer PCB constructed with conductive microvia connections. These boards also usually include buried and/or blind vias and are made by sequential lamination. Read More
What is HAL? Hal is the process of putting solder on exposed copper of the circuit board. Approx. 60/40 Tin/Lead mix is used. Also known as a SMOBC which is an acronym for Solder Mask Over Bare Copper. Read More
What is a Ground Plane? A ground plane is a conductor layer, or portion of a conductor layer, used as a common reference point for circuit returns, shielding, or heat sinking. Read More
