BEST Inc. has developed a simpler process for reworking or hand-placing high lead count connectors. The StencilQuik polyimide stay-in-place stencil helps rework high-density connectors by preventing bridging of neighboring solder joints while allowing technicians to “fit” connector contacts into the stencil.
The process of placing or reworking the connector has been simplified. After preparing the site, the stencil is peeled from its release liner. It is then aligned on the circuit board. Solder paste is then squeegeed into the apertures of the stencil with the remaining material wiped away with a lint-free cloth. The connector is “fitted” into the loaded apertures and then reflowed. Any mask damage ensuing from device removal is repaired by placing the device onto the board.
“Repair depots and rework operations of electronic assemblers are raving about the time that they save and the quality of the rework using StencilQuik™ on hard to rework 50 plus pin connectors. In addition, hardware developers like the fact that to can easily place the more complex connectors on their development board on their own.” said Bob Wettermann of BEST Inc.
Available in both 4 and 8 mil (0.10 to 0.20 mm) thickness. The stay-in-place feature means no compromising in solder paste volume. Each stencil is custom engineered to the application at hand. Deliveries are five business days with 24 to 48 hr. expedites available.
Business Electronics Soldering Technologies (BEST), www.solder.net