Dry film solder mask (DFSM) is a type of photoresist that is applied to the PCB as a solid sheet and then exposed to ultraviolet (UV) light and developed to create the desired pattern. DFSM is ...

Adding a solder mask might be one of those features for some, but if you happen to have a laser cutter and a few business cards sitting around then this process is within reach of the home builder ...

Professionally manufactured boards don’t have this problem since they have solder mask covering the copper that doesn’t need soldering. [Ahmad Tabbouch] has a method that uses Kapton tape to ...

An insulating pattern applied to a printed circuit board that exposes only the areas to be soldered. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

Figure 1. Analog BGA package cross-section drawing (not to scale) Analog BGA packages use solder mask-defined (SMD) pins/ balls. Two types of land patterns are used for surface-mount devices: Solder ...

Two-layer laminate substrates are used for these LGA modules. CCL-HL832NX (from MGC) is the core material of choice and the solder mask is PSR4000 (from Taiyo). The substrate cross-section is shown in ...

The recommended metal mask opening is 100% opening for the land. And The recommended solder mask should be 0.07mm larger than the land. The 8-pin solder paste in the blue frame is separated into two ...

PCBWay now offers multi-colored printed circuit boards PCBWay now offers designers the chance to print any color image on th ...

As per SBOS702B page 22 (layout guidelines) a 'Ground Plane is used for Thermal Coupling to Heat Source'. Do I have to open the solder mask under the IC to ensure max. heat exchange between GND plane ...

Be careful when trimming the leads that you don't scratch the PCB solder mask! Prepare the pin headers by removing a pin from this corner of each as indicated here: Insert one of the pin headers just ...