Location-> Home -> News list -> PCB Glossary-1

News content

PCB Glossary-1
 views:1449

Active Components

Semiconductor devices, such as transistors and diodes, that can change its basic characteristics in an powered electrical circuit, such as amplifiers and rectifiers.

 

Ambient

The surrounding environment coming into contact with the system or component in question.

 

Annular Rings

Conductive copper rings around the holes in a printed circuit board

 

AOI (Automated Optical Inspection)

Automatic laser/video inspection of traces and pads on the surface of inner-layer cores or outer-layer panels. The machine uses cam data to verify copper feature positioning, size and shape. Instrumental in locating "open" traces, missing features or "shorts".

 

AQL (Acceptance Quality Level)

The maximum number of defectives likely to exist within a population (lot) that can be considered to be contractually tolerable; normally associated with statistically derived sampling plans.

 

Array

A group of elements or circuits (or circuit boards) arranged in rows and columns on a base material.

 

Aspect Ratio

The ratio of the board thickness to the smallest-hole diameter of the printed circuit board.

 

Automated Test Equipment (ATE)

Equipment that automatically tests and analyzes functional parameters to evaluate performance of the tested electronic devices.

 

 

                      links:PCB     FPC     PCBA     PARTS     STENCIL     QUALITY     CAPABILITY  

---------------------------------------------------------------------------------------------------------------------

KEY words: china pcb manufacturer, shenzhen pcb maker, pcb house, pcb machine, pcb drilling, pcb routing, laminate, inner layer, outer layer, single sided PCB, double sided board, PCB samples, PCB FABRICATION, FPC, Flex-rigid board, rigid flex PCB, HDI circuit board, blind via board, buried via PCB, aluminum board, HG-150 FR4, rogers PCB, laminate, PCB manufacturering, SOP PCB, power pcb, computer pcb, pcb mass production, pcb news, complex board, printed circuit board, pcb design, pcb forum discussion. CAM350, Altium Designer, Cadence Or CAD, PADS 2009, PowerPCB,DXP, Cadence,Altium Designer, protel, PCBA assembly, components assembly, though hole assembly, SMD, SMT assembly.

 

SOPPCB Technology Co., Ltd.
www.soppcb.com

 


copyright © 2003-2017 SOPPCB Technology Co.,Ltd.-soppcb.com E-mail:soppcbtech@gmail.com All Rights Reserved   record:ICP27835188