Hello Cor, I want to introduce myself and my company. TMP. Worldwide. I am Sharon Gheen I have the express honor of being part of the IPC. I do work full time for the leading Technical Staffing firm in the WORLD. Honestly!! Check us out on the web.. Anyway I was hoping that I might call you to chat. I am always looking for designers and positions for designers. Since the PCB design community is really so closely knit, I like to meet and net work with all the talented designers I can. Would it be ok for me to call you? (I'll need your number) Or I have inserted all my phone numbers. Thanks so much for your time. Enjoy the weekend. Sincerely Sharon Sharon K. Gheen Account Executive [log in to unmask] tmp.worldwide (Parent company of monster.com) 4900 SW Meadows Road, Suite 100 Lake Oswego, OR 97035 Toll Free 888-278-2272 Phone: 503-635-4658 Fax : 503-635-6067 -----Original Message----- From: Cor Coolen [mailto:[log in to unmask]] Sent: Thursday, April 19, 2001 10:53 PM To: [log in to unmask] Subject: [DC] Paste screening of Through Hole Test Vias Hello to all of you, Currently,we are designing a double sided reflow board. All our assembled boards have to pass electrical test, preferably on a bed of nails. Is it good practice to close all through hole testvias by paste screening in order to create good vacuum conditions when testing ? So, I want to include these vias in the paste screen artwork. What is a good diameter in the paste screen for closing vias with a finished hole diameter of 8 mil ? Is there not a risk that the solder paste will flow through the via holes and causing shorts at the other side during the second step of reflowing ? The board has a thickness of 95 mil. Anyone has some experience in this matter ? Thanks in advance. Cor Coolen Board Designer ---------------------------------------------------------------------------- ----- DesignerCouncil 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 DesignerCouncil. To set a vacation stop for delivery of DesignerCouncil send: SET DesignerCouncil 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 ---------------------------------------------------------------------------- ----- --------------------------------------------------------------------------------- DesignerCouncil 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 DesignerCouncil. To set a vacation stop for delivery of DesignerCouncil send: SET DesignerCouncil 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 ---------------------------------------------------------------------------------