In a message dated 08/29/2000 12:08:39 PM Central Daylight Time, [log in to unmask] writes: > Steve, you're right that 610 doesn't address this issue. We use this type > of device quite often, and to operate properly (RF stuff, you know...) the > entire body of the component must be soldered down, with a nice fillet all > around. This requirement should be documented on the drawing, however. > Thanks, > Jim M. Hi Jim! As you can see from the pictures I have up, I've got exposed copper all along those edges where they want a fillet, plus all them via's in that grounding pad to suck all the solder down during reflow...so it's next to impossible to get any decent fillets. There is plenty of paste beneath the part, so I assume there's a good ground connection from the device to the board....just don't have nice pretty fillets along the sides. Is it really that important that there be the side fillets along the body for the device to work? The reason I ask is because we've been building this board for as long as I've been here (hundreds and hundreds of boards) and this is the first time this problem has popped-up. Nothing has changed in the process over this time. I use a 6-mil stencil because there's 0402 components all over the board too. I believe what started everything was that a technician said that he was having problems tuning the board, and he said that the problem was because there was no side fillets on the bodies of these couplers. BTW, there isn't anything on the drawing that calls this out. -Steve Gregory- ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ##############################################################