Now, in the PCB industry can rarely see a single panel, which is why? The reason lies in the circuit designer who knows most of the circuit can be done with a single panel, but it is necessary to draw a double panel. This situation is more and more, why is this? Basically there are two reasons, one reason is to draw a single panel than to draw a double-sided board waste time, but also difficult; there is also a reason for not knowing the single panel drawing skills. However, the existence of things that is reasonable, the existence of a single panel of the significance of the existence of a single panel from the following 4 aspects.
1, reduce the cost of circuit production
According to the plate and the cost of production per unit area of two aspects of the calculation, the production cost of a single panel is less than 2-3 times the cost of double-sided board. For the enterprise, can reduce the cost of the product, from a practical point of view, in addition to some of the high frequency circuit, circuit circuit, SMD components require a small area or the circuit is too complex is not suitable for use outside the single panel, the rest of the circuit can be used in a single panel, such as television, radio, tape recorder, power consumption greatly electronic products to the circuit, the circuit drawing for a single panel, in order to reduce production costs.
2, reduce the cost of circuit development
Stereotypes of a circuit, usually need to improve a lot, every change, it is a waste of plate making fee, which is not only the electrical connection of the circuit error, as well as the adjustment of the circuit structure, the need for plate verification. I know a master, his drawing circuit level and circuit basis are very high, but that in his experience, forming a circuit to do at least two times, he also said: "draw a wrong side, equivalent to the loss of a bicycle, and the bicycle is very high". Single panel can reduce this waste to a minimum. In addition, the extensive use of electronic components circuit most need double-sided plate, but the adjustment and test circuit chip components in setting during the trouble, first with a single panel and common components to do the test, not only can reduce the test cost, and the circuit with a single panel and common components made of modified SMD components, the success rate is very high. Only need to change the principle of component package for SMD components, to draw PCB board can be, although some high-frequency circuit is not good test, but most common components, the control circuit uses a common element and a single panel can be verified, of course, this requires the circuit drawing level and the drawing speed is very high.
3, shorten the development cycle of electronic products
Development of electronic products, circuit board production is one of the most troublesome links, when need a setting of electronic products, is the key to making fast circuit board, even if the local professional PCB Factory, professional PCB Factory can't put down the task, do a few special plates for you, unless you and the professional PCB Factory the relationship between hard or expensive production, one day to get the circuit board is very good. Single sided printed board, as long as the method is appropriate, can be made by hand, a manual production of a single panel without character and resistance welding, only about an hour. I used to draw a single panel for a company, because they can make a single panel, a simple circuit, less than a day to complete.
4, to reduce the cost of beginners learning electronic technology entry
Once the circuit board is made of electronic journals for beginners learning electronic technology called "tiger", this is not an exaggeration, also appeared in various methods of Handmade printed board, the method is like a knife all kinds of solution, etching, various formulations of drawing, heat transfer, direct exposure, and with eyes after drawing the refrigerator to get ointment, almost all the weird what. It is very important to draw a single panel for beginners to learn electronic technology. Now there is a misunderstanding, single-chip test board almost all of the double panel, and all the test circuit board fits, technical level and even some test circuit board is still stuck in the last century in 80s, to see what the new device, the development of electronic technology now is the single-chip test board to bring a thousand Li a day, more than great harm to beginners and students? Beginners and students believe that the microcontroller circuit must be double-sided board, after the design of these components on the circuit. This kills beginners and students' awareness of new devices and technologies. I do not think so, I believe that the test board as simple as possible, the better the kind, the lower the cost of production as soon as possible, the better the new components. The author with a microcontroller master 51 microcontroller programming, never what test board used directly on the circuit design of programming, but also found that the majority of single chip circuit with single panel can do.
