Ramon, You may already be aware of this, but panelization using scored lines and a depaneling machine ($4000 or less from CAB) works much better than tabs/mousebites. The routing required to get the tabs, and the tiny holes required to drill the mousebites into the tabs quickly drives up the cost of the fab pwb. I even use scored grooves in combination with some milling in order to avoid the mousebite/tab method of panelization if the pwb has irregular sides or curves. There are no expensive routers to buy, the skill level required to depanel is greatly reduced, the cost of the fab is greatly reduced, and the problems associated with depaneling mousebites is eliminated (pulled soldermask, damaged boards, etc.). Also, no stress is placed on the components when the depaneling is done with the CAB machines, as they separate the pwbs in a lateral direction, as opposed to the stress applied if the depaneling is done by "breaking" the assembly out of the panel via the mousebite tabs. However, I know there are some designs where you cannot depanel any other way. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Jerry Dengler Sent: Thursday, September 15, 2005 1:49 PM To: [log in to unmask] Subject: Re: [TN] Mouse Bites Ramon, Mouse bites in the middle of the break away tabs are hard on operators hands after de-panelization. They may interfere with board mounting. They look bad on the finished board. Other than these points they can work fine. Jerry Dengler Production Manager Pergamon Corporation PH: 610-239-0721 Fax: 610-239-0720 -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Dehoyos, Ramon Sent: Thursday, September 15, 2005 2:37 PM To: [log in to unmask] Subject: [TN] Mouse Bites Hi Technetters: Panelized boards are connected through mouse bites to the break away tabs. It is my understanding and I see the reason for the mouse bites to be close to the board. Does anybody out there have experience with mouse bites placed in the middle, between the boards and the tabs, or close to the break away tab? The material used is FR4. Regards, Ramon Note: On a post a few weeks ago about dry boards. I found out that there are two types of dry board markers regular and low odor markers and two types of dry boards. Low odor markers are the new type available and stay on the old type of dry boards( hard to erase). The new type of boards are sleeker. The solution I found out was to go to Home Depot and buy a 4' X 8' dry board sheet for $9.95 and replace the old board with the new by using the old frame and it works. --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 -----------------------------------------------------