| 摘要 |
A method and a device for sealing a ceramic package of a SAW (Surface Acoustic Wave) filter are disclosed, in which when making a ceramic package of an environmentally sensitive SAW filter such as a SAW duplexer filter or a SAW filter, a first sealing is carried out between a ceramic main body and a metal case so as to protect the chip component, and then, a second sealing is carried out also between the metal case and the ceramic main body again, so that the shielding effect against external electromagnetic fields would be superior, that a cost curtail and a workability improvement can be realized, and that the sealing can be made sure. The first sealing is carried out on a step which is formed on the top of the ceramic main body to bond the metal case thereupon. The second sealing is carried out on the top of the ceramic main body to bond the metal case on the ceramic main body.
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