In a message dated 12/16/98 4:18:37 AM Pacific Standard Time, [log in to unmask] writes: << All Does anyone out there know of a training group that has some expertise in soldering SMT devices using Au80Sn20, a eutectic solder that has a melting temperature of 280'C. Phil Hinton [log in to unmask]>> Hi Phil, You might check with Jim Blankenhorn of SMT Plus, he gives onsite training for rework operators. I'm pretty sure he could tailor his class around high-temp soldering. I've brough Jim in to conduct training at other places I've worked at, and he really does an excellent job! (Haven't had him here where I work now, we're a start-up and ain't quite got the moola for it yet...hehehe) He will provide soldering stations (Metcals) and every stuff if ya' need him to. Another thing I like about Jim's training is that he doesn't focus ENTIRELY on soldering, but goes into other important areas like tip maintenance, cleaning, inspection, terminology, etc....it's a real well-rounded class. -Steve Gregory- Below is the course outline: Terminology There are many new terms used in SMT soldering presented in this entry section. Terms include those pertaining to boards, vias, traces, solder joints, solder fillets, lands, pads, and many more. All are shown with detailed images. Basics of SMT Soldering An understanding of soldering is essential to working on today's complex SMT assemblies. Topics presented include: Soldering Systems Metals Soldering Action Temperature Effect Thermal Shock Soldering and Desoldering Steps Solder, Flux and Cleaning The impact of the type of materials used is presented and includes: Relationship of Solder, Flux and Thermal Energy Material Characteristics Soldering Temperatures Wire Solder /Types Flux and Types Paste Flux Intermixing Fluxes Cleaning Methods Solderwick Sizes and Use Tip Care and Safety Tip care and use is critical to keeping tools at their peak performance. Covered are: Tip Construction Tip Designs Oxidation Cleaning Sponges Tinning Tip Surface Problems ESD and Prevention Tip Uses, Shapes and Temperatures When soldering, knowing which is the proper tip, temperature and how to use it are key to successful soldering. Topics include: Identifying Tip Temperatures Key Factors in Tip Selection Solder Melt Temperatures Using to High or to Low Tip Temperature Uses for Different Tip Shapes Temperatures for Soldering and Desoldering Cleanup Component Soldering There are many leads styles used in SMT and this section teaches you how to solder each. Topics include: Recognizing Damaged Leads and Repairing Them Polarity or Pin 1 Locations Tack Soldering for each Component Type Soldering Steps and Techniques for Each Lead Style Component Desoldering Sometimes it is more challenging to remove components than to solder them. It is easy to damage components or boards unless it is done properly. Topics covered for this area are: Component Attachment Methods Tip Preparation Requirements Tip Shapes Techniques Removal Times for a Wide Range of SMT Packages Inspection and Defects Everyone who solders must inspect. Topics covered: Workmanship Standard Manuals Factors Affecting Performance Inspection with Magnification Over-Inspecting Prototypes and Production Inspection Solder Defect Categorizing Setting up for Corrective Actions Hands-On Lab The second half of the course is a hands-on lab. In this lab each student is furnished with a Metcal soldering system and tips. Following step-by-step instruction, the student will solder and desolder assorted SMT components including: Chip Components (0805, 1206, 1210) Tantalum Capacitors (C size) Melf's (MLL-34 and MLL-41) SOTs (SOT-23 and SOT 89) SOICs (SOIC-14, SOIC-16, SOLIC-16, SOLIC-20) QFPs (QFP-120) Fine Pitch QFPs (QFP-100, QFP-160, QFP-208) PLCCs (PLCC-44, PLCC-84 PLCC SMT Socket (PLCC-68 Course Materials: Performing Rework/Repair on SMT/FPR/BGA Instructor: James C. Blankenhorn Phone: (408) 438-6116 | Fax (408) 438-5450 | 5403-F Scotts Valley Dr. |Scotts Valley, CA 95066 ################################################################ 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 ################################################################