SMT and Its Advantage in Circuit Boards

What is SMT? Why has SMT been generally accepted, recognized and promoted by the electronics industry once it came out? Today Capel will decrypts it for you one by one.

Surface Mount Technology:

It is to pre-set the paste-like alloy powder (solder paste for short) on all the pads to be interconnected on the PCB by printing, spot coating, or spraying, and then surface mount components (SMC/SMD) ) on the specified position on the surface of the PCB, and then complete the remelting and cohesion of the solder paste on all the mounting solder joints in the specified special furnace to complete the entire interconnection process of the PCBA. The collection of these technologies is called surface mount technology, the English name is “Surface Mount Technology, SMT for short.

Because the electronic products assembled by SMT have a series of comprehensive advantages such as small size, good quality, high reliability, automatic production process, high output, consistent product specifications, and excellent cost performance, they have been widely recognized and favored by the electronics industry. So, after the product adopts SMT, what advantages can the product gain?

Advantages of using SMT for products:

1. High assembly density: Generally speaking, compared with the THT process, the use of SMT can reduce the volume of electronic products by 60% and reduce the weight by 75%;

2. High reliability: Both the first pass rate of solder joints in product production and the mean time between failures (MTBF) of products have been greatly improved;

3. Good high-frequency characteristics: Since SMC/SMD usually has no leads or short leads, the influence of parasitic inductance and capacitance is reduced, the high-frequency characteristics of the circuit are improved, and the signal transmission time is shortened;

4. Low cost: The area of ​​PCB used for SMT is only 1/12 of the area of ​​THT with the same function. SMT uses PCB to reduce a lot of drilling, which reduces the cost of PCB manufacturing; the reduction of volume and quality greatly saves the cost of product packaging and transportation; the overall cost of the product is greatly reduced, and the comprehensive competition of the product in the market is enhanced. force;

5. Facilitate automated production: In mass production, it can be fully automated, with high output, large capacity, stable quality, high reliability, and low combined production cost.

Shenzhen Capel Technology Co., Ltd. has established a circuit board production factory since 2009  and provides SMT PCB assembly services. Over the past 15 years, it has accumulated rich experience, a professional team, advanced machinery and equipment, and advanced manufacturing capabilities. It has solved various problems for customers’ project problem.