Feed: IPC BlogPosted on: sexta-feira, 20 de novembro de 2015 12:58Author: IPCSubject: IPC Standards Committee Reports Printed Board Design, Cleaning & Coating, Testing, Process Control, Product AssuranceIPC Standards Committee ReportsThese standards committee reports from the 2015 Fall Standards Committee Meetings have been compiled to help keep you up to date on IPC standards committee activities. This is the first in the series of reportsPrinted Board DesignThe 1-10c Test Coupon and Artwork Generation Task Group met to review the newly developed Users Guide for the IPC-2221B Gerber Coupon Generator that will be released for use by the industry in late 2015. The Generator allows for the creation of Gerber files for test coupon designs found in Appendix A ofIPC-2221B, Generic Standard on Printed Board Design. The group also reviewed a demo for a modification to the Gerber Coupon Generator for a propagated D coupon.Cleaning and CoatingThe 5-31g Stencil Cleaning Task Group met to work on IPC-7526,Stencil and Misprinted Board Cleaning Handbook. Sections 1 and 2 were revised. Material compatibility, snapback, dry vs wet wipe, nano-coating stencils, and small openings were among the subjects discussed.The 5-31j Cleaning Compatibility Task Group met to discuss how to begin verification testing. They want to create acceptability levels for OEM and CM companies. Confirmation testing and test materials were discussed. Comments on document to be reviewed after the end of the yearThe 5-32a Ionic Conductivity Task Group discussed the status of several ongoing projects involving Ion Chromatography. This includes: method detection limit round robin testing, IC Webinar for the SMART group from Doug Pauls, Rockwell Collins, updating WP-008, extract correlation study, localized extraction, and the J-STD-001 ROSE effort.The 5-32b SIR and Electrochemical Migration Task Group met to discuss the statuses of several ongoing projects regarding SIR testing including: Round Robin study for hard wire vs test rack testing, discussion of several test methods, High Voltage SIR testing, and review of IPC-9203, B-52 Test Coupon Users Guide.The 5-32c Bare Board Cleanliness Assessment Task Group met to finalize the decisions made regarding five Test methods. A study was initiated to support the update of IPC-5704,Cleanliness Requirements for Unpopulated Boards in hopes of adding it as a requirement in IPC-6012,Performance of Rigid Printed Boards.The 5-32e Conductive Anodic Filament (CAF) Task Group continued the revision of IPC-9691,User Guide for the IPC-TM-650, Method 2.6.25, Conductive Anodic Filament (CAF) Resistance Test (Electrochemical Migration Testing)The 5-33a Conformal Coating Task Group met to work on Revision C ofIPC-CC-830, Qualification and Performance of Electrical Insulating Compounds for Printed Wiring Assemblies. DWV/MIR white paper was presented and decisions were made regarding what to include in CC-830C. The new Test Coupon, B-54, was presented. 5-33AWG also met to work on the CC-830 Handbook. Plexus presented pictures for use by the committee and Electrolube UK showed presentation on coating performance.The 5-33g Low Pressure Molding Task Group continues to address the Draft of IPC-7621,Guideline for Design, Material Selection and General Application of Encapsulation of Electronic Circuit Assembly by Low Pressure Molding with Thermoplastics.TestingThe 7-11 Test Methods Subcommittee to review a proposal by Gerard OBrien, StandS Group, for using XRF to determine