Abstract:
A layered heater is provided that comprises at least one resistive layer comprising a resistive circuit pattern, the resistive circuit pattern defining a length and a thickness, wherein the thickness varies along the length of the resistive circuit pattern for a variable watt density. The present invention also provides layered heaters having a resistance circuit pattern with a variable thickness along with a variable width and/or spacing of the resistive circuit pattern in order to produce a variable watt density. Methods are also provided wherein the variable thickness is achieved by varying a dispensing rate of a conductive ink used to form the resistive circuit pattern, varying the feed rate of a target surface relative to the dispensing of the ink, and overwriting a volume of conductive ink on top of a previously formed trace of the resistive circuit pattern.
Abstract:
A printed circuit board providing crosstalk compensation. The printed circuit board includes first plated through holes for receiving a first connecting component and second plated through holes for receiving a second connecting component. A signal carrying trace transmits a signal from one of the first plated through holes to one of the second plated through holes. A phase delay control trace is in electrical connection with the one of the first plated through holes. The phase delay control trace affects phase delay of the signal from the one of the first plated through holes to the one of the second plated through holes.
Abstract:
A disk drive suspension assembly including an elongated polymeric base member having a plurality of traces formed directly on a first surface thereof and a reference voltage layer formed on a second surface thereof. A support member is formed directly on at least a portion of the reference voltage layer. The plurality of traces overlay at least a portion of the reference voltage layer. The reference voltage layer is formed from a first electrically conductive material and the support member is formed from a second electrically conductive material. The first electrically conductive material providing substantially greater electrical conductivity and substantially less tensile strength than the second electrically conductive material. The support member includes a head gimbal portion having a first thickness and a load beam portion having a second thickness. The second thickness is substantially greater than the first thickness.
Abstract:
The invention relates to a multi-chip module and a method for producing the same. The inventive module has a base substrate on a part of which signal conductor tracks and signal contact surfaces are arranged in at least one layer. The module further comprises a semiconductor component that is linked with signal conductor tracks and signal contact surfaces and that works in the signal range. The aim of the invention is to provide a highly integrated multi-chip module. To this end, power conductor tracks and power contact surfaces are arranged at least on part of the base support and in at least one layer. At least one power electronic component is provided that works in the power range and that is linked with a power conductor track, at least one power contact surface and at least one signal conductor track. The power conductor tracks have a larger diameter than the signal conductor tracks at least due to a higher thickness.
Abstract:
A conductor pad (102-1,..., 102-n) and a flexible circuit (100) including a conductor pad are provided. The conductor pad includes a first contact region (125), a second contact region (130), and a body portion (110) configured to establish a conductive path between the first contact region and the second contact region. The body portion includes a perimeter edge having at least a first convex segment and a second convex with a first non-convex segment disposed between the first convex segment and the second convex segment. A method of constructing a flexible circuit to facilitate roll-to-roll manufacturing of the flexible circuit is also provided.