The inner layer is made of high permeability PoMo alloy and undergoes precision stamping and annealing to stabilize its performance. The outer layer is made of pure copper to reflect high-frequency EMI, export eddy currents, and protect the inner layer Flatness of 0.05mm, fast soldering, zero yellowing, achieving high and low frequency magnetic field protection.
High power chip shielding covers are preferably made of wrinkled copper or pure copper, with thin materials and few holes to balance shielding and heat dissipation. Precise electromagnetic structures are used to achieve air permeability and specific frequency band shielding.
The aperture tolerance is within+/-0.01mm, the positional accuracy is less than 0.01mm, the hole wall is smooth, the surface roughness (Ra) is within 0.4um, and the signal insertion loss accurately matches the radar's operating frequency band (76-81GHz) is less than 0.5dB, and the shielding effectiveness SE is greater than 30dB.
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