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Knowledge of resistors
1. What is resistance The action of stopping the current is called resistance. A device with a certain resistance value is called a resistance element. The R(Resistor) is expressed in English. 2. Resistance unit The basic unit for ohm Ω its extension units have thousand o K Ω megohm M Ω &n...Read more -
Basic knowledge of placement machine
As a high-tech product, the safe and correct operation of the placement machine is very important for both machine and human. The basic principle of safe operation of the placement machine is that the operator should make the most accurate judgment and should follow the following basic safety rul...Read more -
NeoDen New product Arrival – Online AOI machine, Offline AOI machine
Yesterday, our company launched 3 products, online AOI machine, Offline AOI machine and fully automatic visual printing machine. This product makes our SMT product line more perfect. Now, I will give you a brief introduction of these three products below. Online AOI machine： High Precisio...Read more -
Part 2 Common IDENTIFICATION methods of SMT polar components
6. Integrated Circuit 6.1 SOIC type packaging has polarity. Polarity marks :1) ribbon, 2) symbol, 3) notches and grooves, 4) bevel 6.2 THE PACKAGE of SOP or QFP type has polarity. Polarity labeled :1) notch/groove labeled, 2) One point is different (size/shape) from the other two/three points. 6....Read more -
Part 1 Common IDENTIFICATION methods of SMT polar components
Special attention should be paid to polarity elements throughout the PCBA process, as directional component errors can lead to batch accidents and failure of the entire PCBA board. Therefore, it is extremely important for engineering and production personnel to understand SMT polarity elements. I...Read more -
What equipment is required for a SMT production line?
At present, in the LED industry, LED SMT processing is generally used to mount LED products. SMT machine LED can very well solve the brightness, Angle of view, flatness, reliability, consistency and other problems. Then, what kind of equipment do we need when we carry out LED chip processing? LED...Read more -
Company profile
Hangzhou NeoDen Technology Co., LTD., founded in 2010, is a professional manufacturer specialized in SMT pick and place machine, reflow oven, stencil printing machine, SMT production line and other SMT Products. We have our own R & D team and own factory, taking advantage of our own rich expe...Read more -
Types of reflow oven II
Classification according to shape 1. Table reflow welding furnace Desktop equipment is suitable for small and medium batch PCB assembly and production, stable performance, economical price (about 40,000-80,000 RMB), domestic private enterprises and some state-owned units used more. 2. Vertical re...Read more -
Types of reflow oven I
Classification according to technology 1. Hot air reflow oven Reflow oven is carried out in this way by using heaters and fans to heat up the internal temperature continuously and then circulate. This type of reflow welding is characterized by laminar flow of hot air to transfer the heat required...Read more -
110 knowledge points of SMT chip processing part 2
110 knowledge points of SMT chip processing part 2 56. In the early 1970s, there was a new type of SMD in the industry, which was called “sealed foot less chip carrier”, which was often replaced by HCC; 57. The resistance of the module with symbol 272 should be 2.7K ohm; 58. The capac...Read more -
110 knowledge points of SMT chip processing – Part 1
110 knowledge points of SMT chip processing – Part 1 1. Generally speaking, the temperature of SMT chip processing workshop is 25 ± 3 ℃; 2. Materials and things needed for solder paste printing, such as solder paste, steel plate, scraper, wiping paper, dust-free paper, detergent and mixing ...Read more -
Temperature and humidity requirements and management methods of SMT workshop
Temperature and humidity requirements and management methods of SMT workshop There are clear requirements for temperature and humidity in SMT workshop. The importance of SMT for SMT will not be discussed here. Some time ago, 00 science and Technology Group invited our factory to improve the tempe...Read more
