Patent classifications
H
ELECTRICITY
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H05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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H05K
PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
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3/00
Apparatus or processes for manufacturing printed circuits
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H05K3/46
Manufacturing multilayer circuits
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H05K3/4688
Composite multilayer circuits, i.e. comprising insulating layers having different properties
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H05K3/4694
Partitioned multilayer circuits having adjacent regions with different properties, e.g. by adding or inserting locally circuit layers having a higher circuit density
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