3. Design and specifications

Design and specifications are a set of production data, which means the drawing, film and data documentation necessary to enter into PCB production and performance requirements. Entering DPS must also contain the full terms and conditions of technical information, according to which the PCB manufacture. It is best to enter the data file sent by E-mail format Gerber 274-X, which allows technical work quick and easy checking of the data and makes it possible to render the film matrices as required by the technology. The complete production documentation in the custody case of recurrence of production in the data archive.

3.1 Ordering Information

to enter production DPS is necessary to specify the size of the board, the basic material used, its thickness and the desired Cu plating, the required complementary technologies, such as a solder mask printing, stamping and profile milling. Furthermore, it is the number of pieces and the required delivery date. Technologies other than recommended impact on the price DPS. Ordering is done order. If this is a new production, it is necessary together with the order to enter production data via E-mail or on a storage medium. Data must contain all necessary information, in the format GERBER, to render the film originals, file EXCELLON drilling data and proof prints motifs control films. PCB can be manufactured exports from CAD systems. Data must not contain executable files *. Exe and *. Com.

DPS has to be formatted differently, it must be stated in the order. By default, the DPS to size format "V" grooving or milling. If they do not satisfy the tolerance dimensions shown in Table 3 , it is necessary to arrange tolerance. Making an irregular circumference DPS or inner holes is done by milling. Entering the shape of the circuit can be milled in a separate layer or in a layer of solder mask ( file perimeter ) The line circuit is inappropriate forming a layer connections. All expanding technology should be consulted for input.

• Solder mask DPS theme used to protecting against unwanted short circuit and can be provádětna all basic materials emerge from both sides. The basic type is the application of UV curable mask. Its motive is formed photographic process . Use products Electra. Green mask is applied pouring shield, other colors using a sieve. For an additional fee you can order a mask in white, blue, red and yellow.

• Basic delivery time jsou2 weeks. Date of delivery has an impact on the pricing and it is possible to perform the contract from two days to four weeks. When ordering, it is appropriate to introduce you tolerate On-line reference PRICELIST

• DPS Price is determined by the level of difficulty and number of layers. Basic parameters based on the wire width and spacing of 0.20 mm and the smallest 0.5 mm drill bit used. Intensive production and the width of lines below 0.20 mm, 0.50 mm bore below. Furthermore, the formation of blind holes or sunk holes. Enter the following details and get acquainted with the effect on price has been on PCB design, you can use the PRICELIST.
• When ordering recommended to follow the TPV and the standards on which they rely

3.1.1 Data forwarding e-mail and data carrier

specified electronic data must be without the presence of executable files *. exe and *. com. Entering data in the form to check the input data for the technical work in the manufacturing CAM SW 350 v.5 and v.9.51. When entering the data it is possible to make the necessary adjustments without the cost of film drawing dies, or return to the contracting authority necessary adjustments. Technical department also decide how drawing matrices in terms of subsequent production. Entering finished screenplays this activity greatly reduces and ultimately leads to a price increase production, so production is charged at a premium. Entering data in the form enables easy archiving and subsequent execution of the documentation. The appropriate part of the documentation are also proof prints or paintings motives DPS appropriate to compare the rendered template is entering. This comparison is replaced by direct control authority correctness motives. In case the control copy is not supplied, is formed on the technical work. Verify the accuracy of the theme is then carried out with these prints not the customer wishes. The customer may arrange to send control copies by fax or E-mail. order to avoid confusion between the individual layers on the sides DPS is necessary that at least one film layer contained in the theme readable, non-interchangeable alphanumeric string that uniquely identifies the position of the layer on the PCB.

Electronic data should contain the following files:

• Data part GERBER format , preferably in GERBER 274-X, in which data are given for each layer separately. Ujiných Gerber format must also deliver the files apertures D-CODE.
• The data format of the drilling EXCELLON SDAT for PCB drilling. A detailed description of the input drilling data is given in section 5.3.1.

3.1.1.1 Data Format GERBER

enter data in Gerber format shall include:

• file or files apertures D-CODE, which may be common to all layers, and each layer separately.
• If each layer has a separate set of D-CODE is required to file names apertures and the layers were direct and easily identifiable.
• If the client still uses the same set of apertures D-CODE, the file can be specified as a complete Sponsoring a file that is under the sponsor stored and used when rendering his films. Is it then necessary to enter again.
• When each entry is inappropriate to enter complete sets of apertures D-CODE, ie unused and in the assignment. When converting to a processing software may encounter unnecessary mistakes. It is appropriate to specify only the file apertures. It is important to have an aperture size and it does not stick metric.
• Names apertures D-CODE must be clearly defined and either vprogramu GERBER (img.11 ) , or must be given vtextové the translation of these concepts.

3.1.2 Transfer of data by e-mail

Data transfer can be effected by transmitting the E-mail addresses printed@printed.cz and printed@seznam.cz . The e-mail we are connected 24 hours a day. * Communicate compressed files. ARJ or *. ZIP. Data can be transmitted even use our online store at http://www.printed.cz/shop/index.php., Where you can get acquainted with the price of the contract.

3.1.3 Archiving document

film matrix are the property of the customer and their fabrication is billed according to the price list. Unless otherwise agreed, the documentation for a period of two years from the last trading case archived in our archive. If it is possible after this time with the client to establish a connection, he returned documentation, otherwise it is removed from the archive. Data in electronic form shall be maintained for 5 years. Archiving brings customers the following benefits:

• Prompt order without sending other documents.
• film matrix leaves the premises of our company, so no need for a new charge control input data for the assignment. We are not responsible for changes to the documentation occurred outside of our company.
• archive is updated regularly with the latest version of the DPS. Older version is discarded or returned to the customer.

3.2 Drilling data

Full entering drilling data includes:

• text file *. TXT entering the hole diameters and data oformátu data.
• Enter the tool diameter.

sided PCB matches the specified diameter of the hole diameter of the tool used.

multilayer PCB with a via hole to specify the size of the resulting hole. Maximum number of instruments is limited. The resulting holes below 0.5 mm but expensive production, and therefore their input participates in the pricing DPS.

• Drawing irregular holes
• holes that should not be-layer must be given a separate drill file.

3.2.1 Non-standard input drilling data

If the sponsor does not have a set of drill, drill data can also enter abnormally. Drilling data can be taken directly to the drilling equipment. To enter this drawing is required drilling in the theme of the joints, in a 1: 1, marked with the instruments used directly on the drawing.

When you enter must ensure non-interchangeability screenplays theme nezáměnným resolution alphanumeric character in the theme DPS.

shot recording data is charged according to the price list. The scanned data in machine format, drilling equipment and other drills are not transferable.

film footage of each layer PCB

Movie Original Theme, solder masks and printing is used for the production of copies are for your own PCB production. The method of their implementation depends on the technology used in subsequent production. Each layer must be provided nazáměnným alphanumeric character defining its exact location on the PCB.

• must be made dimensionally stable , clear backing, properly rendered and undamaged, the correct position of the emulsion side. Film originals are made to photoplotter own company BARCO - CRESCENT/40.
  

General for PCB design applies:

• Electric theme should be the guiding force made up of at least 0.20 mm. We are capable of producing power wires from 0.10 mm. The lyrics in the theme is most 0.25 mm, printing service at least 0.20 mm.
• insulating gap if you load a theme does not prescribe otherwise, should be at least 0.20 mm. Vodůvodněných cases it is possible to choose the gap from 0.15 mm.
• thin wires should be conducted only on an insulating distance from large areas of copper.
• solder pads should be about 0.70 mm larger than the diameter of the duct components.
• Theme should not be less than 1.00 mm from the edge of the PCB.
• grooved edge should not intersect the edge of the copper surface. (Milling tool copper rises, producing burrs)
• DPS intended for milling division should not have a marked edge, a frame around the perimeter of DPS, but only marks a turning vobvodu format
• Addition on average solder eyelets for solder mask made photo path should be at least 0.20 mm.

to unmask arbitrarily shaped region DPS, for wire or larger allowance around the pads more than a specified minimum technology. Smaller allowances than recommended, or less than the actual solder pads should be consulted for input.

• width of the weakest lines vmotivu such as banners, frames, etc., must be at least five times the thickness of the base cladding Cu. Failure to do so may result in loosening the wire from the support pads.

DPS finished film originals must be movies made by production needs - see the following article. Alternatively, forced treatment given data covered entity. I finished the transfer films require basic data for processing in the production SW CAM 350 for determining the size of the current in galvanic plating process.

templates themes can be entered depicted motifs designed to přefotografování or other abnormally. DPS can be entered including PCB design or digitized data.

3.3.1 Theme, printing, solder mask

If you are not used to render the film matrices given in the data and the customer is purchasing the finished film footage, the film came to the following principles:

• The location of light-sensitive layer on the mat decides whether creating archive film matrix designed for film making working copies (DPS series of 20 pieces), or made films used directly in production (series under 20).
• case of film matrix, the film layer is positioned relative to the motif always legible. Looking at the film of the emulsion are alphanumeric characters read.
• The job films, the film layer is positioned relative to the motif always unreadable. Looking at the film of the emulsion are alphanumeric characters illegible.
• making motive DPS fotogalvanickým procedure and screen printing base film positive, ie., the conductive paths are drawn in black.
• making direct odleptáním theme underlies the negative film, ie., the conductive path are transparent surface etching to black.
• making labels screen printing method underlies the positive film. The minimum line width is 0.20 mm. For small and single series are produced by the label fotoprocesem, the substrate is a positive film, and the smallest line width is 0.2 mm.
At least
• In one layer motive must be performed by the position detection nezáměnným alphanumeric character that safely determine the position of the layer PCB.

documents must meet the needs of technology. If the specified document does not meet this condition, it can not be used for production. If it is possible, in agreement with the sponsor's expense adjusted or refunded authority for processing. The authority is preferable to let the film portray the original manufacturer's technical department, which then assumes full responsibility of their correctness. DPS small dimensions are technical department grouped into formats suitable for production. Individually, film footage entered DPS, which is less than 1dm2 is recognized as 1dm2 in soulepu is charged only division format.

3.3.2 Patterns for přefotografování

This production has not performed.

3.3.3 Non-standard entry

For all non-standard input is necessary to consider the potential economic savings against professional data processing digitization, or a new proposal DPS.

3.4 PCB design, digitizing

PRINTED company has specialized center for this activity. Rather, they work with several professional companies that deal with the design and DPS have the sufficient experience and the necessary software. The contract may individually adopt or facilitate meetings with the designer DPS according to the complexity of the assignment. The contracts specified by our company joining a copy of the documentation in the price of one piece of DPS assessment tests. Entering PCB design must include:

• The rendered circuit diagram in the ORCAD. Customers can Unas company copy of this order scheme.
• Drawing basic input dimension DPS suvedením all restrictions on the deployment of components, such as the location of the controls, power supplies, PCB mounting holes, input and output signals, signaling elements, placing components sohledem the assembly, etc.
• size power and operating voltage and the environment in which the equipment will be operated, thus the requirements for isolation status.
• design constraints on unilateral or bilateral or multi-layer PCB.
• requirement for basic material DPS.
• list of the components used. If they are used parts that are not normally included vknihovnách design programs (non-standard pin spacing, custom components, etc.) must be entered irozměrový drawing these components, these components or rent head of workplace.
• Another potential limitation , for which the designer has to take into consideration. After processing the received authority necessary data to disk for creating screenplays and drill file, check printing all layers PCB, planting plan and schedule parts and one piece of DPS kosazovacím tests. Can be ordered iosazení and recovery test sample.
• can even order installation and recovery test sample , or the entire series of products uredjaima installation.

Entering digitization PCB must contain:

• draft PCB , best in scale 1: 1, plotted on paper srastrovým base (grid is not required).
• List of components and entering the grid terminals, or constrained holes outside the grid.

• draft must be marked Wednesday drilled holes that are not obvious zpředlohy
• requirements size of the drilled holes.
• Entering the resulting dimension PCB and PCB material
• requirements on the PCB after digitization, as a change of width of wires, insulation gaps, or shift cables, etc. Suitable artwork is made DPS, which is needed to restore documentation. After processing, the Contracting Authority on the disk, ie. data to produce screenplays, drilling data and data for solder mask