Peter: Try Hybrid, @1-800-387-9481. Ask for John Hamilton. Chris -----Original Message----- From: <Peter George Duncan> [SMTP:[log in to unmask]] Sent: Thursday, August 23, 2001 1:56 AM To: [log in to unmask] Subject: Re: [TN] Stepped Stencil [This e-mail is confidential and may also be privileged. If you are not the intended recipient, please delete it and notify us immediately; you should not copy or use it for any purpose, nor disclose its contents to any other person. Thank you.] Hi, David, Your existing stencil manufacturer ought to be able to do it for you, or if not, talk to any local CM's about who they use. You want to step the bottom of the stencil - I take it you mean the step will contact the board not the paste squeegee? Be careful doing this unless you have a lot of real estate clearance on the board around the area of the step, as you won't get proper stencil contact with the board until the step "runs out". The board area between the edge of the step and the the end of the run-put will have "mutant" solder paste deposits - wrong thickness, out of shape, out of area, etc. The squeegee will also "form" the stencil over the step, deforming it quickly beyond use. The step should always be on the squeegee side, so that a uniform surface is presented to the board. Then you will get controllable solder paste thicknesses (that word again) wherever you want them. Regards Pete Duncan David Simmons <dave.simmons@T To: [log in to unmask] AIT.CO.NZ> cc: (bcc: DUNCAN Peter/Asst Prin Engr/ST Aero/ST Group) Sent by: Subject: [TN] Stepped Stencil TechNet <[log in to unmask] G> 08/23/01 08:53 AM Please respond to "TechNet E-Mail Forum." Hi, We are considering the use of a stepped stencil. The base thickness is 5 thou and we would like the step to be 8 thou (3 thou thicker). We would like the step to be on the bottom side of the stencil. The total stencil size is 20 by 20 inch. The size of the step would be about 50 * 50 mm. Does anyone have any contacts of stencil manufacturers who can do this for us? Thanks David ---------------------------------------------------------------------------- ----- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------- ----- ---------------------------------------------------------------------------- ----- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------- ----- --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------