(PCB) is hailed by many as the mother of electronic products. It is a key component of consumer electronics such as computers and mobile phones. It is widely used in medical, aviation, new energy, automotive and other industries. Throughout the brief history of PCB development, every technological advancement directly or briefly affects all human beings. Today we will review the development history of PCB.
“Father of PCB” Paul Eisler
As early as 1903, Albert Hansen was the first to use the concept of “line” to apply to the telephone switching system. It is cut into a line conductor with metal foil, glued to paraffin paper, and a layer of paraffin paper is also pasted on it. , has become the prototype of today’s PCB structure.
Drawings of the first PCB patent
In 1925, Charles Ducasse filed a patent describing the process of adding conductive ink to insulating materials. This patent is the first practical application similar to PCB.
(PCB) is hailed by many as the mother of electronic products. It is a key component of consumer electronics such as computers and mobile phones. It is widely used in medical, aviation, new energy, automotive and other industries. Throughout the brief history of PCB development, every technological advancement directly or briefly affects all human beings. Today we will review the development history of PCB.
“Father of PCB” Paul Eisler
As early as 1903, Albert Hansen was the first to use the concept of “line” to apply to the telephone switching system. It is cut into a line conductor with metal foil, glued to paraffin paper, and a layer of paraffin paper is also pasted on it. , has become the prototype of today’s PCB structure.
Drawings of the first PCB patent
In 1925, Charles Ducasse filed a patent describing the process of adding conductive ink to insulating materials. This patent is the first practical application similar to PCB.
Charles Ducasse patent
In 1936, Paul Eisler invented foil film technology. Today’s “graphic transfer technology” follows his invention, which is the beginning of real PCB technology.
Paul Eisler was born in Austria in 1907 and graduated from the University of Vienna with a bachelor’s degree in engineering in 1930. At the time, printing was a powerful technology, and he began to imagine how printing technology could be applied to circuits on insulating substrates.
Paul Eisler
In 1936, Eisler developed the concept of using etched foil to record traces on the substrate. He first used printed circuit boards in radio devices. At first, no one really paid attention to this invention until 1943. Explosion timing devices, Americans use printed circuits as proximity fuzes on bombs, and this has only begun to be widely used.
First Symposium on Printed Circuit Technology
In 1947, due to the urgent need for the development of aerospace technology, NASA and the US Bureau of Standards initiated the first seminar on printed circuit technology that year. At the meeting, 26 different manufacturing methods were listed and summarized as follows Six categories:
paint method
molding method
powder sintering method
spraying method
Vacuum coating method
chemical deposition
At that time, due to the limitation of production process conditions, none of the above methods could achieve large-scale industrial production, but some of them are still being used for reference until now, and have been developed into new processes and new methods.
