For many years soldering was especially popular among fans of electronics and radio engineering. Thanks to this technology, you can repair electrical equipment or even create your own products. Recently, soldering irons are most often used to repair or create microchips. But for effective and safe work, you need a quality soldering iron.
The "founding father" of this device is called a talented German engineer Ernst Sachs. It was he who invented as well patented technology in 1921, thanks to which computers, players and many other electronic products appeared. Of course, the popularity of this person is unlikely to be compared with the fame of Bill Gates or Steve Jobs, but to some extent they should thank Sachs for his invention.
1 Basic device requirements
- 1.1 Product power
- 1.2 Work voltage
- 1.3 Sting thickness
- 1.4 Thermostat
- 2 Sale and cost of products
- 3 DIY soldering iron
- 4 In conclusion
Basic device requirements
Choosing a soldering iron for microcircuits (like any other product) is necessary wisely. A cheap product can quickly break if it is manufactured poorly. In addition, there is a serious danger that
To avoid such troubles, when choosing a soldering iron for microcircuits one should focus on the manufacturer. It is unlikely that products from a well-known brand will break on the very first day, but it will have to be paid for with a higher margin on the goods. Therefore, as in many cases, it is better to stick to the golden mean - to acquire not the cheapestbut not the most expensive device.
However, it is necessary to choose products according to three main qualities:
- The thickness of the sting.
- The presence of the thermostat.
In most cases, the higher this value is, the better. However, when soldering chips, a completely different approach. Maximum power - 10 W, less is better. The fact is that power directly affects the safety of radio components. Soldering irons with a high value are suitable only for experienced craftsmen who quickly and accurately work with the leads on the microcircuits, preventing them from overheating.
If the soldering iron will be mainly used to remove chips from the board, you can choose a device with high power. The higher the value, the easier it will be to remove the part. True, the perfect preservation of the product is not guaranteed.
After power, should pay attention to the power supply of the soldering iron. The problem here is that standard voltage (220 V) can damage the microcircuit. Therefore, the soldering tool is connected to the network through a power supply unit with a constant voltage or using a transformer. Typically, the voltage drops to 12 or 36 volts.
Following from the above, it is better to purchase soldering irons, in whose configuration there is a power supply or a transformer. Even if the additional product is not too high quality, it is better than nothing.
Most often, the distance between the leads is tenths of a millimeter. It becomes clear that standard tip with a diameter of 5 mm is not enough. To solve this problem, stings are used, the diameter of which is about the same as the distance between the gaps.
Replaceable tips are usually sold separately. However, some manufacturers along with the device also supply some additional components, including and stingers with a smaller diameter. The standard diameter of this component ranges from 3 mm (for micro-soldering irons) to 5 mm (for ordinary products).
Some products (most often it is the newest models) are equipped with a thermostat. As the name implies, using this component the temperature of the working area of the soldering iron is regulated. The presence of such a function greatly improves the usability. Therefore, whenever possible, it is recommended to purchase products that have a temperature adjustment function.
Sale and cost of products
Initially, it is worth mentioning that such devices are not so easy to find on sale. Much more common special tips designed for working with microchips. These replaceable components are mounted on a regular soldering iron, and after work they are replaced with a standard tip.
Nevertheless, in some specialized stores, similar products are still sold. The main thing - do not stop searching. Those who are familiar with the Internet, it is advisable to order a device through an online store.
The cost of specialized devices starts from 150 p. Such models are not of good quality and not intended for frequent and long-term work. If you need good and professional equipment, you will have to lay out 6 000 - 8 000 p.
DIY soldering iron
As mentioned above, cheap products are of poor quality. For professional - you have to pay a considerable amount. Therefore, many professionals working with soldering chips, prefer to make their own devices.
The most popular model is made of a resistor. A similar homemade soldering iron has excellent reliability, ease of manufacture and ease of use. Such a device is easy to work with chips, the step between the pins on which is less than 0.5 mm.
For the manufacture of a soldering iron will need:
- The resistor is MLT, the power of which is 0.5 - 2 W and the resistance is 5 - 10 Ohm.
- Ball pen.
- A piece of wire with a diameter of about 0.8 mm.
- A small piece of double-sided PCB (a rectangle of 3 × 1 cm is perfect).
- Copper wire with a diameter of 1 mm (will be used as a sting).
The instruction is as follows:
- Remove paint and varnish from resistor.
- Cut one of the conclusions on it.
- At the place of the conclusion to make a hole in 1 mm.
- Make a cut in the front resistor cup (the second tokovod for the soldering iron will be installed here).
- From PCB to make a small board with a wide, medium and narrow part. A wide part will be required for the resistor leads, the middle part - for fasteners in the body of a ball-point pen and a narrow one - for soldering wires.
- Put the wire on the resistor in place and solder it.
- Solder to the PCB tokovodov.
- Fix the supply wires (it is best to use the MGTF wire, due to its resistance to melting).
- Connect the wires to the resistor.
- Install the internal components in a ballpoint pen.
Microcircuit soldering irons - highly specialized devices. As the name implies, they are only suitable for working with microchips. But despite the specificity, these devices do an excellent job.
It is easiest to buy such a soldering iron on the Internet, where there are many online stores selling these devices. But before buying it is recommended to carefully review the main characteristics, as well as to clarify whether the product warranty covers. If you do not want to do such things, you can make your own device.