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A bonding alloy slurry for LTCC substrate surface matching with Fulu A6M raw material tape

Time:2022-05-22Number:1815

Gold pasteCommonly used for eutectic connection of silicon and germanium materials in semiconductor integrated circuit chips. Gold paste containing a small amount of palladium or platinum has reduced metallurgical activity and is used as a terminal material for thick film resistors. Conductors can be welded with lead tin solder.Gold palladium slurryandGold platinum slurryApplied in highly reliable electronic circuits, as the terminal material for resistors and the lower electrode of thick film capacitors, the diffusion and reaction between them during sintering can be ignored. Gold platinum paste is particularly recommended for soldering lead tin solder for discrete components that are frequently replaced. Due to the high content of palladium or platinum, the square resistance value of the sintered conductor is also relatively high, about 80 and 90m Ω/port, respectively.

Large scale integrated circuits have high requirements for packaging technology, constantly developing large-sized, high-density wiring, and multi-layered substrates. In the 1980s, a multi-layer printing and sintering system of gold paste dielectric paste was developed, with a substrate size of 100mm × 100mm and a line width and spacing of 125 μ m for gold conductors. In the 1990s, glass ceramic multilayer substrates with dimensions of 225mm × 225mm were developed, consisting of 78 layers, including 13 layers of gold conductors. 100 ultra large scale integrated circuit chips have been installed and applied to supercomputers. Gold pasteDue to its excellent conductivity and long-term stability, it has always played an important role in the development of integrated circuits.

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