How important is PCB layout?

The important impact of PCB layout on PCB to a certain extent determines the manufacturing, installation and subsequent maintenance costs of PCB. 1oz vs 2oz In the trend towards high-density electronic design, the PCB layout and routing of each electronic product is particularly important. PCB routing design can often achieve a higher layout rate, reduce jumper distribution, electromagnetic interference between connections, and effectively reduce noise generation.

For years, PCBS seemed to be "relegated" to the field of electrical engineering, becoming unsung heroes behind the scenes. how to test a circuit board with a multimeter Executives think of PCB wiring as a small manufacturing problem that design engineers don't care about, but as digital circuits become faster and RF circuits are added to PCBS, boards have become a limiting factor in many designs. While computer-aided design (CAD) tools can help engineers design circuit boards, CAD's automatic wire winding function often creates more problems. .. .

As with all new technologies, it takes a long time for engineers to accept and popularize printed circuit boards (PCBS). In the 1960s, Zeneth, a veteran electronics company in the United States, has been promoting the use of point-to-point wiring. Nowadays, almost all electronic products are made of PCB.

But over the years, PCB seems to have been "downgraded" in the field of electronic engineering, becoming an unsung hero who only quietly works hard behind the scenes. Management believes that PCB routing is a trivial manufacturing issue that is not the concern of design engineers; But as digital circuits change faster and faster, RF circuits are also being put into PCBS, and the circuit board has become a limiting influence on many designs. While computer aided design (CAD) tools are available to help engineers design circuit boards, CAD's automatic winding function design often creates more problems.

PCB layout

PCB Printed circuit board layout

PCBS play a central role in design work, and new ways of designing and manufacturing PCBS are constantly being sought. While our industry peers were still discussing the instruction cache architecture for the 68020 chip, they were already talking about board wiring and prototyping that could be done overnight.

Massa said: "In my 40 years of experience in electronics design, the circuit board has always been the limiting factor that hindered every design project; "You shouldn't just do circuit diagrams to cope with your job. You have a higher responsibility to look at the circuitry that is translated into products that can be manufactured and sold.

Modern PCB is not only a time killer, but also a key component with precise design requirements, as electronic equipment operating frequency and signal time increase and decrease, PCB becomes more and more important. Look at these short stories that actually happened and you will get some inspiration.

A printed circuit board story about a flying fighter

Design of radar jamming device for F-16 fighter aircraft. It is understood that some companies may also encounter systemic printed circuit board problems. Circuit board wiring was considered a mechanical engineering task, so our electronics engineers threw the circuit diagrams to other departments to do the circuit board wiring work.

The printed circuit board I got had a very high speed emission Coupled logic (ECL) oscillator, but the 8 layer prototype didn't work because there was enough space in the layers and I wanted to know how they were designed. Smashed to pieces. Originally, to simplify the design of the various parts of the aluminum radiator, mechanical engineers arranged the parts according to their shape, with the ECL chip in the top left corner of the board, the resistor in the middle, the crystal oscillator on the right, and the lower Angle exactly 8 inches from the ECL chip.