Potomac Photonics, Inc.

Michael T Duignan

Chengping Zhang

David Liu

C Paul Christensen

A method for manufacturing a modular electrical circuit includes the steps of pre-manufacturing a plurality of components having fine features such as resistors, capacitors, inductances, and conductors formed on a dielectric substrate. The pre-manufactured components are laminated each to the other in a predetermined order. Each pre-manufactured component includes one or more electrical elements of the same type coupled each to the other by conducting lines. Each dielectric substrate includes through vias filled with the conductive material which serve for cross-coupling of the elements of neighboring components. Position of the passive elements, as well as conductive lines and through vias, are pre-designed to allow precise coordination between the elements of different components in the multi-layered modular electrical circuit.

Passive component assembly for multi-layer modular electrical circuit

Method and components for manufacturing multi-layer modular electrical circuits

Apparatus () for performing patterned cleaning of substrate surfaces () includes substrate (), energetic beam () directed to the substrate (), material carrier element () having a deposition layer (), and a control unit () operating the apparatus () in either a 'material removal' or a 'material transfer' mode in a predetermined sequence. In the &#x201c;material removal&#x201d; mode, the following steps are followed which include the material carrier element () from the intersection with the energy beam () and allowing impinging of the energy beam () on the surface of the substrate in a predetermined patterned fashion so that the material of the substrate is disintegrated at predetermined locations of the substrate surface (). After the first cleaning, the control unit () changes the mode of the operation to the &#x201c;material transfer&#x201d; by moving the material carrier element () into position intersecting with the energy beam () so that the material of the deposition layer () is deposited on the surface of the substrate ().

DLL circuit taking acount of external load

Pulse-position synchronized deposition of a material in miniature structure manufacturing processes is carried out in a fabrication tool including a material carrier element, a source of energy generating pulses of energy, a substrate, and a control unit operatively coupled to the source of energy, substrate, and the material carrier element. The control unit exposes a first area of the material carrier element to a first pulse of energy, pauses the exposure while initiating relative motion between the source of energy and the substrate at a predetermined first speed and relative motion between the material carrier element and the energy source at a predetermined second speed which is a function of the first speed, and slowing (or stopping) relative motion between the energy source, material carrier element, and the substrate, while exposing the unablated area of the material carrier element adjacent to previously ablated area to a second pulse of energy.

Method and apparatus for pulse-position synchronization in miniature structures manufacturing processes

A material delivery system is provided for miniature structures fabrication which has a substrate, a material carrier having a deposition layer, and a laser beam directed towards the material carrier element. A control unit is operatively coupled to the substrate, the material carrier element and laser beam for exposing respective areas of the deposition layer to the laser beam in a patterned manner so that the depositable material of the deposition layer is transferred to the substrate surface for deposition on its surface. The system operates in either an additive mode of operation, or a subtractive mode of operation so that a workpiece does not have to be removed from the tool when change of modes of operation takes place.

Material delivery system for miniature structure fabrication

An apparatus is provided for fabrication of miniature structures which includes a substrate, a controllable energetic beam, a deposition layer supported on a material carrier element and a control unit operating the apparatus in either of &ldquo;material removal&rdquo; and &ldquo;material transfer&rdquo; modes of operation. In the &ldquo;material removal&rdquo; mode of operation, the control unit displaces the material carrier element away from an interception path with the energetic beam so that the energetic beam impinges in patterned fashion onto the surface of the substrate and disintegrates the surface material of the substrate. In the &ldquo;material transfer&rdquo; mode of operation, the control unit displaces the deposition layer to intercept with the energetic beam so that the material contained in the deposition layer is transferred and deposited on the surface of the substrate in a patterned fashion.

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Washington, DC, United States of America

Michael T Duignan