... quickly access the services we offer, the following is a guide to the preferred requirements for producing quality Printed Circuit Boards. Can be supplied | PRINTED WIRING BOARDS | as artworks, penplots, photoplots or photoplot files, so long as the quality and registration of the images is of a standard that will enable a | PRINTED WIRING BOARDS | good quality board to be produced. Another important criteria is the presence of orientation marks within the boundary of board. These marks could be the | PRINTED WIRING BOARDS | board reference so long as it cannot be read from the other side. (This is for your protection to prevent the boards made inside out). | PRINTED WIRING BOARDS | Images should comply with design rules that will result in a board that will meet performance and cost requirements. - Scale must be given, tapes | PRINTED WIRING BOARDS | securely stuck to the backing sheet, track to pad & track to track joints complete and the backing sheet clean. - Scale must be given | PRINTED WIRING BOARDS | and be at least 2:1. Plots must also offer sharp edge definition and traces dense enough for blocking light when ...
[ Printed Wiring Boards ]


... controller assess it. Should there be any missing information or data they will immediately contact the customer to discuss the issue. Once the review | PRINTED WIRING BOARDS | is complete, the initial package is forwarded for booking into both the tooling and production systems. | GUIDE TO DOCUMENTATION REQUIREMENTS | Images To help | PRINTED WIRING BOARDS | you quickly access the services we offer, the following is a guide to the preferred requirements for producing quality Printed Circuit Boards. | CAN BE | PRINTED WIRING BOARDS | SUPPLIED AS ARTWORKS |, penplots, photoplots or photoplot files, so long as the quality and registration of the images is of a standard that will | PRINTED WIRING BOARDS | enable a good quality board to be produced. Another important criteria is the presence of orientation marks within the boundary of board. These marks could | PRINTED WIRING BOARDS | be the board reference so long as it cannot be read from the other side. (This is for your protection to prevent the boards made | PRINTED WIRING BOARDS | inside out). | PRINTED CIRCUIT BOARDS | Images should comply with | DESIGN RULES | that will result ...
[ Printed Wiring Boards ]


... or not reflected". 9.) The minimum distance of 0.25 mm from conductive strips or pads to not plated through drills or milling is not | PRINTED WIRING BOARDS | considered. | FR4 > BASE MATERIAL WHAT ARE THE IMPORTANT SPEC´S? | | WHAT CTI- WORTH HAS THE BASE MATERIAL FR4 ? | CTI 200 | PRINTED WIRING BOARDS | Which dielectric constant exhibits the base material FR4 ? Epsilon r 4,3 - 4,8 in dependence of the material thickness What are the thickness tolerances | PRINTED WIRING BOARDS | of the base material FR4? a.) Material thickness 1,0 mm: +/- 0,12mm b.) Material thickness 1,5 mm: +/- 0,14 mm On which warping and twisting | PRINTED WIRING BOARDS | value does one have to count with the base material FR4? The base material manufacturers reserve themselves a tolerance of the twisting value up to | PRINTED WIRING BOARDS | 1 % with doublesided material and 1.5 % with singlesided material. Note: that the twisting value increases above average, if the copper allocation on the | PRINTED WIRING BOARDS | printed circuit board is locally very different. On requirement a reduction of the warping and twisting value can be reached by ...
[ Printed Wiring Boards ]