Production Process of Printed Circuit board The process of manufacturing PCB is through board cutting, drilling, panel plating, dry film, pattern palting, etching and profiling ect. The equipments in our factory are advanced, and we have skilled and experience R&D team. And we has accumulated much experience in technology innovation, risk control and industrial standards. Website: www.camtechcircuits.com
Surface treatment: ENIG 4 layers Board Thickness: 0.9mm Min hole : 0.3mm Min line width/ space : 0.12/0.12mm Particularity : Rogers 4835+FR4 Application: power supply This board is panalized by two pieces, which the board thickness is only 0.9mm. This board is used by the special material Rogers 4835, Rogers radio frequency sheet RO4835 adds anti-oxidant material, which is stronger than RO4350B. ENIG is a thick nickel gold alloy with excellent electrical properties on the copper surface and can protect PCB for a long time.And acts as a rust barrier, which can be useful and achieve good electrical performance in the long term use of PCB. What’s more, it also has environmental tolerance than other surface treatment processes do not.
Layer: 4 SolderMask Color: Green Silkscreen Color: WhiteSurface treatment: Leard free HAL Board Thickness: 1.6mm Min Hole Size: 0.3mm Min line width/ space: 0.2/0.2mm Application: power supply According to the lead-free tin spraying and immersion tin process flow. It can be known that the test station in the lead-free tin spraying process flow is after the lead-free tin spraying process. Even if there is a defect in the lead-free tin spraying process, it can be detected in the subsequent test. So it can better ensure the function of PCB circuit board products. The surface of lead-free tin spray is brighter and beautiful, while the surface of tin sink is pale white and dull. The performance and function of lead-free tin spray products are more stable and reliable.
Layer: 6SolderMask Color: Green Silkscreen Color: White Thickness: 1.6mm±0.16Special Technology: Rogers+FR4Mechanical blind hole+Laser drilling This printed circuit baord is panalized by 2 pieces, the material is used by speicial material Rogers+FR4. Rogers+FR4 hybrid high-frequency circuit boards are generally used in industrial control electronics, military equipment, aerospace etc. The design of radio frequency lines on the PCB, while realizing signal transmission, mixing can reduce the use of high-speed and high-frequency plates and reduce manufacturing costs.
Layer: 10 SolderMask Color: BlueSilkscreen Color: WhiteSurface Treatment: ENIG Thickness: 1.34±0.14mmWidth/Space: 0.1/0.1mmSpecial Technology: Impedance control This HDI PCB board is panalized by 4 pieces, surface treatment is ENIG. ENIG, which can be useful and achieve good electrical performance in the long term use of PCB. What’s more, it also has environmental tolerance than other surface treatment processes do not. Nickel plating is because gold and copper diffuse to each other, and the nickel layer can prevent the diffusion between them.
Layer: 12 Surface treatment: Leard free HAL Board Thickness: 2.1mmMin Hole Size: 0.3mmMin line width/ space: 0.2/0.2mmParticularity: resin plug hole, depth control drillApplication: power supply This PCB board is panalized by 2 pieces, surface treatment is Leard free HAL. . PCB shall be immersed in the molten solder during hot air solder leveling. The air knife shall flush the liquid solder before the solder solidifies, and it can minimize the crescent shape of the solder on the copper surface and prevent the solder bridge.
layers: 18SolderMask Color: Green Thickness: 5.4±0.5mmBorehole thickness -diameter ratio: 5.3133Surface treatment: ENIGApplication: transformer This printed circuit board is used for transformer, the surface treament is ENIG. A board used for transformer, needs to go through high temperatures. The usage of ENIG is to achieve good electrical performance in the long term use of PCB. The general process is pickling cleaning → micro-etching → pre leaching → activation → electroless nickel plating → chemical leaching.
Layers: 6SolderMask Color: Bule Silkscreen Color: White Surface treatment: ENIG Board thickness: 1.15mm Min hole size: 0.25mm,Min line width/ space: 0.1/0.1MM Particularity: mechanically drilled blind hole, Rogers 4350+FR4 This board is panalized by 2 pieces, high frequency mixed-pressure PCB board. The particularity for this board is mechanically drilled blind hole. Blind Vias: Connects an inner layer with the adjacent surface layer, they are only visible on one side of the boards and so are called 'blind' vias. Drill depth is extremely important in vias, because going too shallow or too deep can have a dangerous impact on the board.
Layers: 4SolderMask Color: Green Silkscreen Color: White Surface treatment: ENIG Board thickness: 1.2mmMin hole size: 0.075mmMin line width/space: 0.1/0.1mmParticularity: 2-order HDI, blind hole, buried hole Blind and buried vias are only available on boards with at least four layers. Blind Vias is Connects an inner layer with the adjacent surface layer, they are only visible on one side of the boards and so are called 'blind' vias. Buried Vias is Connects two adjacent inner copper layers. They are not visible from the surface and so are 'buried'.Hdi board buried and blind vias connect the inner layers with either other adjacent inner layers or adjacent surface layers.
Layer: 4 SolderMask Color: GreenSilkscreen Color: White Width/Space: 0.1/0.1mmSurface treatment: ENIGSpecial Technology: Impedance controlThis PCB board is panalized by 4 pieces, using by Immersion Gold is to process the color more bright. And depositing the color on the surface very stable. The advantages for Immersion Gold is to make the coating very flat.The solderability is very good. Impedance control (EImpedance Controlling). There will be a variety of signal transmission in the conductors in the circuit board, to increase its transmission rate must increase its frequency. If the line itself due to etching, stack thickness, wire width, and other different factors. The impedance is worth changing, and the signal is distorted.
Layer: 8 SolderMask Color: Green Silkscreen Color: White Thickness: 1.6mm±0.16Special Technology: Rogers+FR4，Rf antenna line width control +/-5um PCB manufacturers have also begun to study the processing of various high-frequency products and the application of low-cost solutions, such as high-frequency products. The mixing of high-frequency materials and ordinary FR-4 is to embed high-frequency materials in ordinary FR-4 materials. However, this method has problems such as poor flatness of the board formed by high-frequency materials and FR-4 materials. Resulting in large size of the shielding cover is poorly attached and the problem of welding gaps.
Layers: 10SolderMask Color: Green Silkscreen Color: White Width/Space: 0.082/0.09mmSurface Finishing: Immersion goldThis board is panalized by 2 pieces, and the surface finishing is Immersion gold. Unlike OSP, ENIG only is a thick nickel gold alloy with excellent electrical properties on the copper surface. It can protect PCB for a long time and acts as a rust barrier, which can be useful and achieve good electrical performance in the long term use of PCB. What’s more, it also has environmental tolerance than other surface treatment processes do not.