I've been collecting area/height/volume data for the past year and have a few hundred megabytes for 0.125 through 0.18 mm thick foils.  Circles, squares, rectangles, NSMD vs SMD pads, squared vs radiused corners, electroform vs laser cut foils, type 3 vs type 4 powder, etc.  We don't use 0.1 mm foils yet, but I recently did some printing of various circular apertures from 0.22 to 0.27 mm in diameter with an 0.1 mm thick electroform stencil and a type 4 paste. 75 microns looks like the lower bound of height for an in control process.

As someone else mentioned, the lower bound is really 0 since when you're using an 0.1 mm thick stencil you're typically printing very challenging features and you'd better bring your A game.  It's easy to get outliers where no paste was printed or there's a ridiculously tall deposit (0.25 mm).  The main thing I see that gives outliers on the high end is printing with insufficient squeegee pressure. 

Scott Post 
P.O.U. 0000-001E-0CTC
2151 E. Lincoln Road 
Kokomo, Indiana    46904-9005 
765-451-2983 (Phone) 
765-451-0287 (FAX) 



****************************************************************************************

Note:  If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Thank you. 

****************************************************************************************

______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------