With the development of science and technology, the requirements for the measurement accuracy of various components are becoming higher and higher. Therefore, the requirements for the image measuring instrument, an accuracy measuring instrument, are becoming more and more stringent. The image measuring instrument is the product of the perfect combination of traditional optical projection and [...]
Modern has very high requirements for electrical appliances and electronics. It must be safe to use, otherwise it cannot enter the market in large quantities. In order to avoid power connection between circuit board and circuit, circuit board potting adhesive is generally used for potting. The potted circuit board is wrapped by adhesive layer, which [...]
With the continuous development of science and technology, electronic products are developing towards portability, miniaturization and high performance. The quality of packaging will directly affect the cost and performance of electronic products. Using plasma cleaning technology to remove pollutants on the material surface and improve surface activity has become an indispensable process in packaging. Due [...]
Analysis on several forms and causes of unqualified road slab quality Circuit board quality problems generally include circuit short circuit, open circuit, green oil foaming, green oil falling, substrate delamination, board warping, pad falling, poor tin loading and open circuit of circuit board after aging. The basic reason for these common circuit board quality problems [...]
Why is the quality of the same FPC FPC sample often very different from different manufacturers. FPC flexible circuit boards produced by some manufacturers are neat and have excellent touch, golden face and neat reinforcement; The FPC flexible circuit board produced by some manufacturers has all kinds of problems, such as burr, oxidation, uneven reinforcement, [...]
When the circuit board is spliced and connected, the insufficient width of the connecting bridge will cause the deformation of the circuit board. If the width size and stiffness design of the connecting bridge are insufficient, the deformation of the PCB will be exacerbated. Experiments in the circuit board manufacturing factory show that the stiffness [...]
Recently, Xiaomi Youpin crowdfunding set up a handheld laser engraving machine, which can easily carve on metal, wood, leather, plastic and other materials. As far as linear motor knows, this product adopts integrated design and high-speed galvanometer technology scheme, which can realize 600mm / s fast engraving, and small volume can also meet the needs [...]
Circuit board engraving machine is a kind of equipment that directly carves circuit graphics and makes circuit boards by using mechanical engraving technology. The use of this equipment can reduce a lot of unnecessary manual strength and improve work efficiency. We all know that the production of circuit board is one of the most critical [...]
1、 Methods of checking the plate: 1. Observation method: whether there is burning paste, burning, blistering, board surface broken line, socket corrosion. 2. Meter measurement: + 5V, GND resistance is too small (below 50 ohm). 3. Power on inspection: for the damaged board, slightly increase the voltage by 0.5-1v. After starting up, use the IC [...]
Circuit board quality guarantee Party A: Nanning Hongchen Communication Technology Co., Ltd. Party B: (hereinafter referred to as Party A and Party B) 1. Scope In order to ensure Party B provides Party A with high-quality products and services, meets Party A's quality requirements and avoids loss due to product quality or service problems, both [...]