LTCC raw material tape material, LTCC substrate, LTCF-LTCC heterogeneous substrate and corresponding preparation method

Abstract

The invention provides an LTCC raw material tape material, an LTCC substrate, an LTCF-LTCC heterogeneous substrate and a corresponding preparation method, and the LTCC raw material tape material comprises 45-55 wt% of an inorganic material component and 45-55 wt% of an organic material component based on the mass percentage of the LTCC raw material tape material; the inorganic material comprises the following components in percentage by mass: 50-70 wt% of a ceramic material and 30-50 wt% of a glass material; the organic materials comprise a solvent, a dispersing agent, a binder and a plasticizer. The tape casting slurry is good in forming effect, the prepared LTCC raw material tape and LTCF are good in cofiring matching performance and compact in sintering, the dielectric constant of the LTCC raw material tape material is 4.5-7.0, and the dielectric loss is 2.3 * 10 <-3 >-4.5 * 10 <-3 >; and the LTCF-LTCC heterogeneous substrate is tightly bonded in a co-firing manner, and the shear surface has no collapse opening, so that the condition that the LTCC layer is diffused by the LTCF layer can be effectively avoided.

Description

technical field [0001] The invention belongs to the field of low-temperature co-fired ceramic materials and preparation thereof, in particular to an LTCC raw material tape material, an LTCC substrate, an LTCF-LTCC heterogeneous substrate and a corresponding preparation method. Background technique [0002] LTCF (Low Temperature Co-fired Ferrite) material refers to a low temperature co-fired ferrite material. Using the magnetic properties of ferrite, the integrated design of components such as inductors and transformers can be realized; while LTCC (Low Temperature Co-fired Ceramics) Materials refer to low-temperature co-fired ceramic materials, which can be prepared into components such as LTCC components, LTCC functional devices, LTCC packaging substrates and LTCC module substrates by utilizing the dielectric properties of microwave dielectric ceramics. [0003] In order to expand the functions of electronic components, some researchers have tried to co-fire LTCF materials w...

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Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a LTCC raw tape material, an LTCC substrate, a LTCF-LTCC heterogeneous substrate and a corresponding preparation method for solving the problem of LTCC materials and LTCF in the prior art. When the materials are co-fired, the sintering shrinkage does not match, the small-sized heterogeneous co-fired substrate material formed has the problem of chipping and delamination on the cutting surface, and the diffusion of colored ions of the LTCF material into the LTCC material, resulting in the deterioration of the performance of the LTCC material

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