... traces. Open Road: When asking a fabricator to manually manipulate the aperture wheel, the final part design is left to the front-end operator. When | CIRCUIT BOARD | a designer doesn't have the option to export files using 274X, it is always helpful to provide the plotted artwork to the manufacturer for verification. | CIRCUIT BOARD | 274X provides a quick and efficient means of importing data with no need for operator interpretation. The data provided are the data tooled. DRAWN PLANES | CIRCUIT BOARD | AND PADS Bottleneck: Drawn planes are multiple overlapping traces or vectors used to build a large copper feature. By drawing a plane rather than producing | CIRCUIT BOARD | layers in a negative format, one reduces the file sizes. In many instances the use of drawn images is a necessity. If the design remains | CIRCUIT BOARD | functional after changing the data from positive to negative at output of the Gerber data, the file size becomes smaller. Large data files are due | CIRCUIT BOARD | to mass amounts of trace data information. When working with drawn images, CAM operators may ...
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... followed by solidification. The surface has the appearance and physical characteristics of being hot dipped. | REGISTRATION | The degree of conformity of the | CIRCUIT BOARD | position of a pattern, or a portion thereof, with its intended position or with that of any other conductor layer of a board. | RESIN | CIRCUIT BOARD | EPOXY-MATERIAL | used for impregnating glass weave. | RESIN | Recession The presence of voids between the barrel of the plated-through hole and the wall | CIRCUIT BOARD | of the hole, seen in microsections of plated-through holes in boards exposed to high temperatures. | RESIN SMEAR | Resin transferred from the base material | CIRCUIT BOARD | onto the surface or edge of the conductive pattern normally caused by drilling. Sometimes called Epoxy Smear. | RESIST COATING MATERIAL | used to mask | CIRCUIT BOARD | or to protect selected areas of a pattern from the action of an etchant solder, or plating. | RING VOIDS | The absence of substance | CIRCUIT BOARD | in a localized area, as an missing Ring in a ...
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... of board. These marks could be the board reference so long as it cannot be read from the other side. (This is for your | CIRCUIT BOARD | protection to prevent the boards made inside out). Images should comply with design rules that will result in a board that will meet performance and | CIRCUIT BOARD | cost requirements. - Scale must be given, tapes securely stuck to the backing sheet, track to pad & track to track joints complete and the | CIRCUIT BOARD | backing sheet clean. - Scale must be given and be at least 2:1. Plots must also offer sharp edge definition and traces dense enough for | CIRCUIT BOARD | blocking light when photographing. - Preferred on 7mil (178mm) thick base for stability. Films should be plotted on laser photoplotter or on vector photoplotter using | CIRCUIT BOARD | a minimum resolution of ½mil (13mm). - Preferred in Gerber® format although accepted in other formats. (Refer to CID- 014 for information on Documentation in | CIRCUIT BOARD | Digital Form). - files are the only acceptable form of supplying images for multilayers and boards with fine (0.2mm or ...
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