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SMD inductors are fabricated through multiple processes, each with its own proprietary technology. Next, let's take a look at the manufacturing methods of coiled products and laminated products.
1. Reel
① Magnetic core production
After the process of powder → forming → firing, electrodes are formed on the produced magnetic core.
② reel (coil inductor)
Wrap the wire around the core and connect the end of the wire to the core.
③Frame processing
Clamp the rolled core with the frame.
④Shaping
Resin is injected into the coil clamped by the frame.
⑤Terminal processing
The resin-wrapped coil is cut open and the portion of the frame left on the coil is folded into the electrode.
2. Laminate
①Manufacture of jelly
Ferrite powder is mixed with resin to make ferrite jelly.
② Forming into sheets and printing
The ferrite gel is made into thin sheets and electrodes are printed on it.
③ Laminate
The sheets of the ferrite gel with the printed electrodes are stacked and pressed under pressure.
④Cut and burn
It is cut to the specified size with a sheet metal knife and fired in a firing furnace.
⑤Coating electrodes, electroplating
Put the fired coil into the JIG board, and then dip the JIG board into the electrode paste to coat both ends of the coil with electrodes. After firing, immerse the entire coil in the electroplating solution.
1. Reel
① Magnetic core production
After the process of powder → forming → firing, electrodes are formed on the produced magnetic core.
② reel (coil inductor)
Wrap the wire around the core and connect the end of the wire to the core.
③Frame processing
Clamp the rolled core with the frame.
④Shaping
Resin is injected into the coil clamped by the frame.
⑤Terminal processing
The resin-wrapped coil is cut open and the portion of the frame left on the coil is folded into the electrode.
2. Laminate
①Manufacture of jelly
Ferrite powder is mixed with resin to make ferrite jelly.
② Forming into sheets and printing
The ferrite gel is made into thin sheets and electrodes are printed on it.
③ Laminate
The sheets of the ferrite gel with the printed electrodes are stacked and pressed under pressure.
④Cut and burn
It is cut to the specified size with a sheet metal knife and fired in a firing furnace.
⑤Coating electrodes, electroplating
Put the fired coil into the JIG board, and then dip the JIG board into the electrode paste to coat both ends of the coil with electrodes. After firing, immerse the entire coil in the electroplating solution.
