Dear TechNetters Recently we are evaluating the use of OSP ( Organic Solderbility Preservative ) on Mixed Technology PCB where by we have both PTH ( Plated Thro' Hole ) or THM ( Thro' Hole Mount ) and SMTcomponent on board It was claim that OSP will provide a good solderbility on the board itself but limited to SMT device only. it will not provide the good joint on PTH component. Was this the real case ???? Your help and brilliant advise is needed urgently and appreciated it in advance Thanks and Best Rgds HF Lai Unico Technology ################################################################ TechNet E-Mail Forum 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################ ################################################################ TechNet E-Mail Forum 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################