Multi-layer circuit construction methods with customization features
First Claim
1. A method of making a multilayer circuit assembly comprising the steps of:
- (a) providing a first circuit panel having a dielectric body with oppositely directed top and bottom surfaces, contacts on its top surface at locations of a first pattern terminals on its bottom surface, and through-conductors electrically connected to said terminals and extending to the top surface of the panel, and a second circuit panel having a dielectric body with a bottom surface and terminals at locations of said first pattern on the bottom surface of such panel, saidproviding step including the step of customizing said first circuit panel by selectively treating the top surface of such panel so that less than all of the through conductors of such panel are connected to contacts of such panel;
(b) stacking said circuit panels in superposed, top-surface to bottom surface relation so that the top surface of said first circuit panel faces the bottom surface of said second circuit panel at a first interface and said first patterns on said facing surfaces are in registration with one another, with said contacts of said first panel being aligned with said terminals of said second panel at at least some locations of said in-registration patterns; and
(c) nonselectively connecting all of said aligned contacts and terminals at said interface, whereby less than all of said through conductors of said customized panel are connected to terminals of said adjacent panel.
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Accused Products
Abstract
Multilayer circuit assemblies are made by stacking circuit panels having contacts on their top surfaces, through conductors extending between top and bottom surfaces and terminals connected to the bottomend of each through conductor. The terminals and contacts are arranged so that when the panels are stacked the terminals on the bottom of one panel are in alignment with the contacts on the top surface of the immediately underlying panel. The panels are selectively treated on their top and/or bottom surfaces so as to selectively disconnect or connect each contact to a terminal on the bottom surface of the same panel. For example, the top surface of the panel may be selectively etched to disconnect a contact from one through conductor and hence from the associated terminal. The aligned terminals and contacts are nonselectively connected to one another at each interface so that wherever a terminal and contact on adjacent panels are aligned with one another there are connected to one another. This forms composite vertical conductors extending through a plurality of the panels. The selective treatment of the panel top and bottom surfaces provides selective interruptions in the vertical conductors. A circuit panel precursor having the through conductors and methods of making the same are also provided.
263 Citations
20 Claims
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1. A method of making a multilayer circuit assembly comprising the steps of:
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(a) providing a first circuit panel having a dielectric body with oppositely directed top and bottom surfaces, contacts on its top surface at locations of a first pattern terminals on its bottom surface, and through-conductors electrically connected to said terminals and extending to the top surface of the panel, and a second circuit panel having a dielectric body with a bottom surface and terminals at locations of said first pattern on the bottom surface of such panel, saidproviding step including the step of customizing said first circuit panel by selectively treating the top surface of such panel so that less than all of the through conductors of such panel are connected to contacts of such panel; (b) stacking said circuit panels in superposed, top-surface to bottom surface relation so that the top surface of said first circuit panel faces the bottom surface of said second circuit panel at a first interface and said first patterns on said facing surfaces are in registration with one another, with said contacts of said first panel being aligned with said terminals of said second panel at at least some locations of said in-registration patterns; and (c) nonselectively connecting all of said aligned contacts and terminals at said interface, whereby less than all of said through conductors of said customized panel are connected to terminals of said adjacent panel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification