Electronic Glossary

High Density Interconnect (HDI) technology is a printed circuit board that has a higher wiring density per unit area than a conventional PCB. This is achieved using fine line features and clearances, microvias,  blind and buried vias and sequential lamination …

HDL: All you need to know about HDL In computer engineering, a Hardware Description Language (HDL) is a specialized computer language used to describe the structure and behavior of electronic circuits, and most commonly, digital logic circuits. All you need …

What Is HDMI?   High-Definition Multimedia Interface (HDMI) is a proprietary audio/video interface for transmitting uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device, such as display controller, to a compatible computer monitor, video …

The portion of a connector assemble which is mounted on a printed circuit.

Heat Sink or Heatsink is a device that aids in the removal of heat from electronic equipment, and is particularly important when heat is generated in a small area on printed circuit boards, or when devices such as power transistors, …

What Is Heavy Copper in PCB?   The IPC has no any specific definition of Heavy Copper (Cu) in PCB, but people in PCB industry generally define it as the copper weight of outer and/inner conductive layers equals or higher …

What is Henry (H)?   The Henry (symbol: H) is the SI derived unit of electrical inductance. If a current of 1 ampere flowing through a coil produces flux linkage of 1 weber turn, that coil has a self inductance …

What is Hertz (Hz)?   The Hertz (symbol: Hz) is the unit of frequency in the SI and is defined as one cycle per second. The hertz is an SI derived unit whose expression in terms of SI base units …

What’s High Speed Design?   In PCB industry, High Speed Design, also known as HSD, which refers to a PCB design or layout is less susceptible to signal integrity, power integrity, and EMI/EMC problems, and the PCB can transmit data …

What’s a High-pass Filter?   A High-pass Filter (HPF) is an electronic filter that passes signals with a frequency higher than a certain cutoff frequency and attenuates signals with frequencies lower than the cutoff frequency. The amount of attenuation for …