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Not to be confused with Printed electronics. "PC board" redirects here. For the mainboard of personal computers, see Motherboard. "Panelization" redirects here. For the page layout strategy, see N-up. Printed circuit board of a DVD player Part of a 1984 Sinclair ZX Spectrum computer board, a printed circuit board, showing the conductive traces, the through-hole paths to the other surface, and ...
Some single-sided boards which have plated-through holes are made in this way. General Electric made consumer radio sets in the late 1960s using additive boards. The (semi-)additive process is commonly used for multi-layer boards as it facilitates the plating -through of the holes to produce conductive vias in the circuit board.
Example of component sizes, metric and imperial codes and comparison included Composite image of a 11×44 LED matrix lapel name tag display using 1608/0603-type SMD LEDs. Top: A little over half of the 21×86 mm display. Center: Close-up of LEDs in ambient light. Bottom: LEDs in their own red light.
Inseparable assemblies—i.e., "items which are ordinarily replaced as a single item of supply" [2] —are typically treated as components in this referencing scheme. Examples: 1A12A2R3 - Unit 1, Assembly 12, Sub-assembly 2, Resistor 3; 1A12A2U3 - Unit 1, Assembly 12, Sub-assembly 2, Inseparable Assembly 3
Modern PCB design software typically provides "interactive routers"—the drafter selects a pad and clicks a few places to give the EDA tool an idea of where to go, and the EDA tool tries to place wires as close to that path as possible without violating design rule checking (DRC). Some more advanced interactive routers have "push and shove ...
On a circuit diagram, the symbols for components are labelled with a descriptor or reference designator matching that on the list of parts. For example, C1 is the first capacitor, L1 is the first inductor, Q1 is the first transistor, and R1 is the first resistor. Often the value or type designation of the component is given on the diagram ...
A via (Latin, 'path' or 'way') is an electrical connection between two or more metal layers of a printed circuit boards (PCB) or integrated circuit. Essentially a via is a small drilled hole that goes through two or more adjacent layers; the hole is plated with metal (often copper) that forms an electrical connection through the insulating layers.
A single-board computer (SBC) is a complete computer built on a single circuit board, with microprocessor(s), memory, input/output (I/O) and other features required of a functional computer. Single-board computers are commonly made as demonstration or development systems, for educational systems, or for use as embedded computer controllers .