Casting and characterization of LiMgPO4 glass free LTCC tape for microwave applications

Glass free, non-aqueous LTCC tapes of Bi4(SiO4)3 with high solid loading

“…The multilayer ceramic module (MCM) is one of the important milestones in this direction. The low temperature co-fired ceramic (LTCC) technology is emerged as the real backbone of MCMs [1]. The LTCC technique plays a vital role in miniaturization and hybridization of microwave devices by embedding passive components like resistors, capacitors and other functional parts within it, thereby creating a lot of open spaces over the surface for active components [1][2][3].…”

“…The prime requirements for a dielectric material for LTCC applications are relatively low dielectric constant, high quality factor, near zero temperature coefficient of resonant frequency, chemical inertness with silver (Ag) and low sintering temperature [1,[3][4][5]. The major challenge in LTCC technology is the reduction in sintering temperature of the ceramic well below the melting point of Ag (961 • C), without sacrificing its dielectric * Corresponding author.…”

“…Among them, addition of low melting glasses is relatively easier but has some major drawbacks that it may result in chemical interaction with the metal electrode, forming complicated phases in the LTCC system. Furthermore, glass addition can cause cracks during the soldering due to the different thermal expansion coefficient between glasses and ceramics [1,9]. Hence, an intense search is going on to develop glass free LTCC materials and tapes [1].…”

LTCC tapes based on Al2O3–BBSZ glass with improved thermal conductivity

“…12(a and b)). The microstructure of the sintered tape shows denser particle arrangement compared to the green and this may be due to the grain growth occurred during sintering [2,40]. The sintering temperature for the tape is optimized to be 850 1C as compared with 900 1C for the bulk ceramic samples.…”

Overview on low temperature co-fired ceramic sensors

“…However, an addition of glass frit degrades the dielectric as well as mechanical properties. Therefore, glass-free LTCC tapes with excellent dielectric properties have been reported recently [7]. However, glass-free LTCC tapes may not be available commercially or appropriate for all applications.…”