Elektronisk fremstilling af printkort (i det følgende benævnt PCB) products have been in commercial use since 1948 and began to emerge and become widely used in the 1950s. The traditional PCB industry is a labor-intensive industry and its technical intensity is lower than that of the semiconductor industry. Since the early 2000s, the semiconductor industry has gradually shifted from the US and Japan to Taiwan and China. So far, China has become an influential PCB producer in the world, accounting for more than 60% of the world’s PCB output.

Medical equipment:

Today’s advances in medical science are entirely due to the rapid development of the electronics industry. Most medical devices (e.g., pH meters, heart rate sensors, temperature measurements, ELECTROcardiogram/EEG, MRI devices, X-rays, CT scans, blood pressure devices, blood glucose level measuring devices, incubators, microbiological devices, etc.) are pcBS-based for individual use. These PCBS are usually compact and have small shape coefficients. Density sensors mean placing smaller SMT components in smaller PCB sizes. Disse medicinske anordninger er mindre, lettere at bære, lettere og lettere at betjene.

Industrial equipment.

PCBS er også meget udbredt i fremstilling, fabrikker og tilstødende fabrikker. These industries have high-power machinery driven by high-power working circuits that require large current. For at gøre dette er det øverste lag af printkortet belagt med et tykt lag kobber, der i modsætning til kompleks elektronisk PCBS bærer en strøm på op til 100 ampere. This is particularly important in applications such as arc welding, large servo motor drivers, lead-acid battery chargers, ambiguity of cotton cloth for military industry and clothing.

Lyset

Inden for belysning bevæger verden sig mod energieffektive løsninger. These halogen bulbs are rare now, but now we see LED lights and high-intensity leds around. These small leds provide high brightness light and are mounted on aluminum-based PCBS. Aluminium har den egenskab at absorbere varme og udstråle det i luften. På grund af den høje effekt bruges disse aluminium PCBS derfor almindeligt i LED -lampekredsløb af mellemstore og kraftige LED -kredsløb.

Automotive and aerospace

Another application of PCBS is in the automotive and aerospace industries. En fælles faktor her er efterklang fra flyende fly eller biler. For at tilfredsstille disse vibrationer med høj kraft bliver PCB således fleksibelt.

Therefore, use a PCB called Flex PCB. The flexible PCB can withstand high vibration and light weight, thus reducing the overall weight of the spacecraft. Disse fleksible PCBS kan også justeres i et snævert rum, hvilket også er en stor fordel. These flexible PCBS serve as connectors, interfaces, and can be assembled in compact Spaces, such as behind panels, under dashboards, etc. En kombination af stiv og fleksibel PCBS kan også bruges (stiv-fleksibel PCBS).

Fra distributionen af ​​applikationsindustrien tegnede forbrugerelektronik sig for den højeste andel, op til 39%; Computers accounted for 22%; Communication 14%; Industrial controls and medical equipment accounted for 14 per cent; Automotive electronics accounted for 6%. Defense and aerospace accounted for 5%, aerospace and medical devices and other fields have high requirements for PCB accuracy.

PCB er meget udbredt, fordi det har mange unikke fordele, som kan opsummeres som følger.

1. Høj densitet.

With the improvement of integrated circuit integration and installation technology, high-density PCBS can be developed.

2. Høj pålidelighed.

Through a series of inspections, tests and aging tests, the PCB can be guaranteed to work reliably for a long time.

3. Designbarhed.

For all kinds of PCB performance (electrical, physical, chemical, mechanical, etc.) requirements, can be standardized through design, standardization and other ways to achieve printed board design time is short, high efficiency.

4. Productive.

Through modern management, standardization, scale (quantity), automation and other production can be carried out to ensure consistency of product quality.

Testbarhed.

A relatively complete test method, test standards, various test equipment and instruments have been established to test and identify PCB products for conformity and service life.

6. Monterbarhed.

PCB -produkter letter ikke kun standardiseret samling af forskellige komponenter, men letter også automatisk og masseproduktion.

På samme tid kan PCBS og samlingsdele af forskellige komponenter samles til større dele, systemer eller endda hele maskiner.

7. Vedligeholdelse.

PCB -produkter og komponentaggregater er standardiseret, fordi de er designet og fremstillet i en standardiseret skala.

På denne måde, når systemet svigter, kan det hurtigt, let og fleksibelt udskiftes og hurtigt genoprette servicesystemets arbejde.