... printed circuits. It is made in a number of weights (thickness) the traditional weights are 1 to 3 ounces per square foot 0.0014 to | PRINTED CIRCUIT BOARD | 0.0042 inch thick and 35µ to 105µ copper per square foot | CORNER MARK (CROP MARK) | The mark at the corners of a printed | PRINTED CIRCUIT BOARD | board artwork, the inside edges of which usually locate the borders and establish the contour of the board. | CRAZING | A condition existing in | PRINTED CIRCUIT BOARD | the base material in the form of connected white spots of crosses on or below the surface of the base material, reflecting the separation of | PRINTED CIRCUIT BOARD | fibers in the glass cloth and connecting weave intersections. | CROSSHATCHING | The breaking of large conductive areas with a pattern of voids in the | PRINTED CIRCUIT BOARD | conductive material. | CROSS-LINKING | The establishing of chemical links between the molecular chains in polymers. It can be accomplished by chemical reaction, vulcanization and | PRINTED CIRCUIT BOARD | electron bombardment. Cross-linking in thermosetting resins renders them infusible. CSP (Chip Size Packaging -Chip Scale ...
[ Printed Circuit Board ]


... fixing tabs of 1.5mm must be kept below this size. | THE MILLING GROOVE | for the outer contour is 2.4 mm. The boards | PRINTED CIRCUIT BOARD | are milled in accor-dance with the dimensionlayer, which must be a separate layer containing just the unbroken contour of the boards (edge markings or drawings | PRINTED CIRCUIT BOARD | are not suitable and result in additional charge). | SELECTED CAPABILITIES: | Archiving Process Data Drill- / Milling Program Archiving Customer Data Production Data Conversion | PRINTED CIRCUIT BOARD | E-Test optional Design Check UL - approval Design Adjustment Further Options | TECHNICAL SPECIFICATION: | "Delivery: Multi-Panel (MP): Delivery-Size of the Panelized Board Array is | PRINTED CIRCUIT BOARD | 490 mm x 290 mm with Fixing Tabs by Min-Distance between the Boards of 2,4 mm. | MILLING-COORDINATES [-?-]: | One MAA-Unit (MAA-U) is made | PRINTED CIRCUIT BOARD | up of 20 MAA´s | DATA-BASE FORMAT: | Gerber, ODB++, DPF Type of the Base Material: FR 4 Layers: 1, 2, 4 | SURFACE PROTECTION: | PRINTED CIRCUIT BOARD | | HAL Layer Build-Up: | ELECTRICAL TESTING: | No Final Thickness of PCB: 1,00 mm to 2,40 mm ...
[ Printed Circuit Board ]


... on multilayers. Innerlayer and outerlayer copper surfaces remain pristine, eliminating the potential for interconnect defects and copper- to-copper adhesion failure. Costly waste treatment and | PRINTED CIRCUIT BOARD | microetch post-treatments are not required. Fully compatible with most electrolytic acid coppers, the system's wide operating window allows for simplified process control and reduced process | PRINTED CIRCUIT BOARD | times. DMS-E deposits a conductive polymer that may be produced either in the horizontal mode using specially designed horizontal processing equipment or in the vertical | PRINTED CIRCUIT BOARD | mode using a standard immersion type plating line. The DMS-E system consistently delivers highly reliable plated through-holes on all commonly used laminate materials, PWB complexities | PRINTED CIRCUIT BOARD | and in a variety of operating conditions. Production-proven in both vertical and horizontal process equipment, the versatile system yields total process cost reduction Panel Plating | PRINTED CIRCUIT BOARD | a Flash of Copper The panels are online in a wet state transferred to ...
[ Printed Circuit Board ]