A printed circuit board is an essential part of electrically and mechanically driven devices. It is used in connecting and supporting electronic components with an electrically charged tract from the copper sheet laminated on non conductive substrate. PCB is heavily populated with different electrical elements collectively known as printed circuit assembly. The manufacturing of PCB boards entails a systematic approach where only the ones who have the ropes are allowed to work.
The printed circuit board's design is not simply done in accordance with its fabricator's creativity and resourcefulness. Quality control, design and assembly requirements are devised by the Association Connecting Electronics Industries, a special trade organization that aims at establishing standardized assembly for every electronic equipment. And that explains why the PCBs should be initially designed before these go to 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.
Long before the prototypes of printed circuits were released, point-to-point construction was used. This is a non-automated system of electronic circuit construction. Some time between 1936-1947, another company developed the device and have it sprayed on a plastic board.
Prior before all those enhancements, the electronic components had certain wire leads passing through holes which were then soldered unto a PCB trace. Such construction method is popularly known as through-hole construction, an electronic approach that typically involves the use of lead on the components inserted into the board's holes and a mounting scheme. This is done manually.
In the 1980s, the surface-mount device was introduced by which electronic circuits had to be mounted on the board's surface directly. This technology prompted production of smaller devices and eventually replaced through-hole construction. Both technologies, however, could be used in the same board.
Today, manufacturers largely use resin Pre-preg, copper foil, laminates and copper clad laminates. Laminates are produced through the thermosetting plastic resins that are employed in creating uniform integral pieces. Typical length runs at four feet to eight feet. Thickness, resin percentage and cloth weaves have to be in standard measurements so as to achieve the desired dielectric characteristics. Cloth or fabric used determines the actual ratio of resins in the laminate that is about to be 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 printed circuit board's design is not simply done in accordance with its fabricator's creativity and resourcefulness. Quality control, design and assembly requirements are devised by the Association Connecting Electronics Industries, a special trade organization that aims at establishing standardized assembly for every electronic equipment. And that explains why the PCBs should be initially designed before these go to 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.
Long before the prototypes of printed circuits were released, point-to-point construction was used. This is a non-automated system of electronic circuit construction. Some time between 1936-1947, another company developed the device and have it sprayed on a plastic board.
Prior before all those enhancements, the electronic components had certain wire leads passing through holes which were then soldered unto a PCB trace. Such construction method is popularly known as through-hole construction, an electronic approach that typically involves the use of lead on the components inserted into the board's holes and a mounting scheme. This is done manually.
In the 1980s, the surface-mount device was introduced by which electronic circuits had to be mounted on the board's surface directly. This technology prompted production of smaller devices and eventually replaced through-hole construction. Both technologies, however, could be used in the same board.
Today, manufacturers largely use resin Pre-preg, copper foil, laminates and copper clad laminates. Laminates are produced through the thermosetting plastic resins that are employed in creating uniform integral pieces. Typical length runs at four feet to eight feet. Thickness, resin percentage and cloth weaves have to be in standard measurements so as to achieve the desired dielectric characteristics. Cloth or fabric used determines the actual ratio of resins in the laminate that is about to be 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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