A printed circuit board is important in any mechanically driven devices. This is used in supporting and connecting electronic components through an electrically charged pathway from a copper sheet that is laminated to a non-conductive substrate. A PCB is densely populated with discrete devices or electrical elements that can be collectively referred to as a printed circuit assembly or PCA. Manufacturing of PCB boards involves a systematic method for which only the ones with the ropes are permitted to work.
The design of a printed circuit board is done not only based on the resourcefulness and creativity of its fabricator. Assembly, design and quality control requirements are established by the Association Connecting Electronics Industries, a trade association aiming to set standardized production and assembly of any electronic devices. That is why PCBs have to be designed initially before they are out in the market.
First introduced in the early 20th century, the modern printed circuit boards were created by a German inventor named Albert Hanson which was also developed by an American businessman and inventor, Thomas Edison. In 1904, Edison experimented chemical methods in plating conductors using linen paper. And it was in 1913 that a certain electronics company patented a print-and-etch technique.
Later on, an engineer named Paul Eister enhanced a functionality of the printed circuit for the radio set. This technology spread significantly across the U. S. By 1943 as a basic component for the proximity fuse, an explosive device used in the World War II. This automatically blew up as it drew nearer to its target.
Just before the prototype of this technology was released, manufacturers used the point-to-point strategy of construction. It is a non automated approach used in the construction of electronic circuits. And between 1936 and 1947, another distinguished company offered new developments of the device through spraying this on plastic board.
Prior to all the PCB board enhancements, the electronic components used to have wire leads that passed through holes and soldered onto the PCB trace. Such method of construction is known as a through-hole assembly, an electronic approach that involves a mounting scheme and the use of leads on each component inserted into the holes of the board. This is typically done manually.
Around 1980s, surface-mount technology was introduced with which electronic circuits are mounted directly onto the board's surface. This technology then led to the production of smaller boards and had eventually replaced the through-hole construction. But both technologies can be employed using the same board.
Manufacturers at present largely use copper clad laminates, laminates, copper foil and resin Pre-preg. Laminates are created through the use of thermosetting plastic resin that produces uniform thickness of integral final pieces. Common length is between four and eight feet. Standard cloth weaves, cloth thickness and resin percentage are necessary in achieving desired dielectric characteristics. The fabric or cloth utilized in the process determines the resin ratio in a laminate being produced.
Manufacturing of PCB boards also passes through subtractive processes. These involve silk screenings printing, photoengraving and PCB milling. Circuit properties also require chemical etching, a subtractive manufacturing process that is now increasingly important in the production of the board.
The design of a printed circuit board is done not only based on the resourcefulness and creativity of its fabricator. Assembly, design and quality control requirements are established by the Association Connecting Electronics Industries, a trade association aiming to set standardized production and assembly of any electronic devices. That is why PCBs have to be designed initially before they are out in the market.
First introduced in the early 20th century, the modern printed circuit boards were created by a German inventor named Albert Hanson which was also developed by an American businessman and inventor, Thomas Edison. In 1904, Edison experimented chemical methods in plating conductors using linen paper. And it was in 1913 that a certain electronics company patented a print-and-etch technique.
Later on, an engineer named Paul Eister enhanced a functionality of the printed circuit for the radio set. This technology spread significantly across the U. S. By 1943 as a basic component for the proximity fuse, an explosive device used in the World War II. This automatically blew up as it drew nearer to its target.
Just before the prototype of this technology was released, manufacturers used the point-to-point strategy of construction. It is a non automated approach used in the construction of electronic circuits. And between 1936 and 1947, another distinguished company offered new developments of the device through spraying this on plastic board.
Prior to all the PCB board enhancements, the electronic components used to have wire leads that passed through holes and soldered onto the PCB trace. Such method of construction is known as a through-hole assembly, an electronic approach that involves a mounting scheme and the use of leads on each component inserted into the holes of the board. This is typically done manually.
Around 1980s, surface-mount technology was introduced with which electronic circuits are mounted directly onto the board's surface. This technology then led to the production of smaller boards and had eventually replaced the through-hole construction. But both technologies can be employed using the same board.
Manufacturers at present largely use copper clad laminates, laminates, copper foil and resin Pre-preg. Laminates are created through the use of thermosetting plastic resin that produces uniform thickness of integral final pieces. Common length is between four and eight feet. Standard cloth weaves, cloth thickness and resin percentage are necessary in achieving desired dielectric characteristics. The fabric or cloth utilized in the process determines the resin ratio in a laminate being produced.
Manufacturing of PCB boards also passes through subtractive processes. These involve silk screenings printing, photoengraving and PCB milling. Circuit properties also require chemical etching, a subtractive manufacturing process that is now increasingly important in the production of the board.
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