Specifying of technical
documents for production

Specifying of technical documents for production | PEWTRONIC s.r.o.

Here we would like to draw near the mandatory technical documents that the customer should deliver to the production along with the business order. The greater complexity of customer products, the ever-increasing share of machine processing and the rising cost of electronic components make us now more compelled to have a stricter approach to customer documentation. The high standard of the ISO 9001: 2015 system and the application of the IPC-A610 CZ Revision E-2010 for the assessment of electronic assemblies, guarantees customers a clear result in the quality of production, but also undertakes to provide high-quality technical documentation.

Please attention, since 13rd January 2020 we are changing format and sizes for full sized stencils to four side stretching system. You will find here its drawing.

Here is a recommendation for the accepted electronic formats of the documents, but we recommend you to study the entire document „Specifications of ELVYR-PEWTRONICsro Technical Data“, which is linked to the terms and conditions:

a) General Accompanying Texts and Guides: Acrobat Reader * .pdf, Microsoft Word * .doc

b) Photos and Special Design Instructions: Picture Formats * .jpg, * .tif, * .bmp

c) Parts lists: We prefer editable versions in Microsoft Excel * .xls or plain text * .txt The reason for this is the additional check with mounting data over the spec script

d) Assembling data: Microsoft excel * .xls or text file * .txt with separating characters not elsewhere in the data (eg semicolon) The data must contain a reference (eg C1), component value, case, X coordinate, Y on the geometric center of the component and the Z rotation. Ideally, the line of the text file with the fitting data may look like: C1; 100n; 0805; 25.425; 12.854; 180

e) Basics for PCB Planet and Production: Gerber Data (GERBER RS 274X), Please do not forget to insert guide marks  for automatic machines into layout.

Here you can see short movie taken by placeing machine, where positioning of origin point of the PCB were set up by via (riveting between layers), becouse designer forgot place correct positioning origin points. This mistake affect PCB assembly from begin to end of manufacturing. You can see here fluctuating position of solder pads.

Expected PCB material is FR4, we recommend specifying the thickness. laminate, copper foil and surface treatment.

f) Machine / construction drawings: AutoCad (ProgeCAD) * .dwg

g) A complete project file created in Eagle format * .brd can also be supplied by the customer. From this format, we can generate all the necessary data – embedding data, drawings and gerber data.

Data files should be stored in a single directory that is ideally marked with the product name, version (index od changes), and the date of this documentation release. These directories can be accepted even if the documentation is changed if the directory contains everything you need. Article 3. We also recommend compressing the directory using the compression program in * .rar or * .zip format. You can also encrypt the file and pass it through another feed. Such data sent electronically reduces the risk of misuse of confidential information.

Important note: If harmful viruses are detected in electronic files, the customer will be prompted to re-deliver the complete set of documents!

Last update13th January 2020

Your certified partner acc. to ISO9001:2015, IPC-A-610 soldering standard and wiring harnesses UL subject 764 CSA. The company PEWTRONIC has great experience since 2003.