KY8030 Programmers Manual - 第61页
Program mers Manual | 5 9 1.4. Glossary ● Gerber File (For Metal Mask) It is a PCB production design file which has been defined by th e Gerber System Corporation in U.A, and its form at has been standardized internation…
58 | KY-8030 Series(KYOS-2007001_rev0)
3DIn‐lineSolderPasteInspectionSystems
1.3.6. Help
1) About GerbPad
Open the About GerbPad dialog box to check the version and copyright information.
About GerbPad dialog box
Programmers Manual
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1.4. Glossary
● Gerber File (For Metal Mask)
It is a PCB production design file which has been defined by the Gerber System
Corporation in U.A, and its format has been standardized internationally. There are
separate files for each layer of the PCB.
Format: International Standard (RS-274D, RS-274X)
● Gerber Format
- RS-274D: It is an old format which includes only graphic data. The Gerber
parameters must be inputted separately and Aperture files must be loaded.
- RS-274X: It is a new format which includes the Gerber parameters and Aperture
data as well as graphic data. It is a recommended format.
● Gerber Parameter
It is a standard for numerical data of the Gerber files. For the RS-274D format, the
parameters must be inputted separately.
- Unit: Sets a unit. (mm/inch)
- Digits: Sets digits of the integer part and fraction.
- Notation: Sets a position display method.
(i) absolute: An absolute position value is displayed based on the design origin.
(ii) incremental: A position value is displayed by the increased amount of the
position.
* The standard value is “absolute”.
- Zero omission: Sets a display method of ‘0’ which is included in the position data.
(i) leading zero: Displays ‘0’ in the front digits.
(ii) trailing zero: Displays ‘0’ in the back digits.
(iii) none: Omits ‘0’.
* Default value is “leading zero”.
Example)
When Gerber file data is “X5612Y2378D2*”,
Case1) Unit = mm, Digits = 3.3, Notation = absolute, Z.O = when “leading zero”
⇒ X = 5,612(mm), Y = 2.378(mm)
Case2) Unit = inch, Digits = 2.4, Notation = absolute, Z.O = when “leading zero”
⇒ X = 0.5612(inch), Y = 0.2378(inch)
Case3) Unit = inch, Digits = 2.4, Notation = absolute, Z.O = when “tailing zero”
⇒ X = 56.1200(inch), Y = 23.7800(inch)
60 | KY-8030 Series(KYOS-2007001_rev0)
3DIn‐lineSolderPasteInspectionSystems
● GerbPad file
file used at GerbPad program to convert Gerb file (*.gbr) to pad file (*.pad).
● Pad file
It is a file that includes Pad data.
Format: There are various formats that can be chosen depending on a text file and
demand by a user.
① Position: X, Y, angle
② Size: Width, Length
③ Shape : Rectangle, Circle, Rounded rectangle, Oblong, P(Positive Sloped
Rectangle), N(Negative Sloped Rectangle), Undefined
● Job file
It is a file in which work data are saved.
Format: *.gpd
● Aperture file
It includes a defined straight line, a graphic shape and size data. There is a standard
format (GAP), however, a different format is used for each CAD software which
creates the Gerber file. It is loaded separately only for the RS-274D format.
● Stencil file
It is a Gerber file designed to produce stencils for screen printer. It is a SMD type
Pad data.
It is generally created in the Mask file.
● Mask file
It is a Gerber file used for Mask plane of the PCB. It is a SMD type and Hole type
Pad data.
The edited file after removing a Hole Pad from the Mask file is a Stencil file.
● Silk file
It is a Gerber file used for Silk plane of the PCB. It contains data of the reference and
auxiliary line.
● Flash
It is a template or window data which is included in the Stencil or Mask plane of the
Gerber file. It is a data that is required for processing the PCB with optic Flash after
putting a straight-sided or circular template(or window).