Frames and foil sizes most commonly used are listed below. If your exact requirement is not shown, contact us, and we'll help you locate your frame.
| CAST ALUMINUM (Alloy 380) |
ID | OD | THICKNESS | FOIL SIZE |
| 12" x 12" | 14" x 14" | 1.00" +/- .003" | 10" x 10" | |
| 12" x 17" | 15" x 20" | 1.00" +/- .002" | 10" x 15" | |
| 15" x 15" | 17" x 17" | 1.00" +/- .002" | 13" x 13" | |
| 20" x 20" | 23" x 23" | 1.00" +/- .003" | 18" x 18" | |
| 24" x 24" | 27.5" x 27.5" | 1.175" +/- .003" | 20" x 20" | |
EXTRUDED ALUMINUM (60/63) |
OD |
THICKNESS |
FOIL SIZE |
|
| 20" x 20" Space Saver | .50" | 18" x 18" | ||
| 23" x 23" | 1.00" | 18" x 18" | ||
| 27.5" x 27.5" | 1.00" | 20" x 20" | ||
| 29" x 29" | 1.50" | 22" x 22" | ||
| 29" x 29" SpaceSaver | .50" | 22" x 22" | ||
| 29” x 29” Low Profile | .375" | 22" x 22" | ||
| 23” x 25” | 1.50" | 20" x 22" | ||
| Fuji 4000 800mm x 580mm | 1.062" | 18" x 24" | ||
| Fuji 5000 910mm x 690 mm | 1.062" | 20" x 28" | ||
| Panasonic 550mm x 650mm | 1.18" | 16" x 18" |
If you don't see the frame size that you need, let us know. We have a supply of many other frames as well. We can also provide custom made extruded frames to your specifications!
EtchGuard software monitors aperture width vs component pitch and foil thickness. If an aperture does not meet the guidelines of IPC-7525A "Stencil Design Guidelines," it is automatically red flagged by our software. This enables us to evaluate the situation and provide you with alternate solutions before a problem occurs on your surface mount line.
Correct aspect ratio is essential for proper paste transfer-this is the ratio between the size of the aperture and the thickness of the stencil. If the wall area of the aperture exceeds the pad area, surface tension may cause the paste to adhere to the side walls. An incorrect aspect ratio can prevent the paste from releasing properly and cause clogging at stencil lift-off. For optimum paste release, the preferred aspect ratio is greater than 1.5 and greater than .66 for area ratio.
Our standard library of "customized designs" can solve specific problems in your assembly area. For example, when using no clean paste, solder balls on chip components can be minimized by specifying home base apertures. These are only a few of the designs we can do for you. Tell us about your application!
