Ceramic substrate patterned structure and manufacturing method thereof
A technology of ceramic substrate and manufacturing method, which is applied in semiconductor/solid-state device manufacturing, semiconductor/solid-state device parts, semiconductor devices, etc., can solve problems such as incomplete etching, poor stability, product corrosion, etc., and achieve the copper surface state of the product Good, reduce copper surface roughness, long service life
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[0041] Example 1
[0042] see Figure 1-4 , the present invention provides the following technical solutions: a patterned structure of a ceramic substrate, comprising a ceramic substrate 1, a bonding layer 2, a solder layer 3 and a copper-platinum layer 4, the bonding layer 2, the solder layer 3 and the copper-platinum layer 4 from the inside to the outside The upper and lower surfaces of the ceramic substrate 1 are sequentially attached. The ceramic substrate 1, the bonding layer 2, the solder layer 3 and the copper-platinum 4 are manufactured by the active brazing method. The copper-clad ceramic substrate is exposed and developed by etching. The copper-clad ceramic substrate is etched with liquid to form a patterned structure of the ceramic substrate. The ceramic substrate 1 is nitride ceramic or oxide ceramic, and the solder layer 3 is composed of Ag, Cu and Ti components, and the Ag content is more than 70%. , the rest are Cu and Ti, the etching solution contains hydrogen...
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