Standards Manage Your Business
We Manage Your Standards
Standards Manage Your Business
We Manage Your Standards
Specification for Base Materials for High Speed/High Frequency Applications - Amendment 2
In Section 2.1, under IPC-TM-650, delete the following:
2.1.10 Visual Inspection for Undissolved Dicyandiamide
Replace Section 3.8.1.1 with the following:
3.8.1.1 Fabricated Laminate Sheet Material
A substrate sheet shall be any size as laminated by the material vendor. After trimming, the substrate sheet becomes a fabricated laminate sheet. The working area of a fabricated sheet is considered to be the area inside a 25 mm [0.984 in] border around the perimeter of the sheet.
Add the following new Section 3.8.3.1.7:
3.8.3.1.7 Laminate Inclusions
• Metalliic inclusions are not acceptable.
• Opaque foreign matter, other than fibers, shall not exceed 0.50 mm [0.020 in]. Opaque foreign inclusions < 0.13 mm [0.005 in] shall not be counted.
• Opaque foreign inclusions between 0.13 mm [0.005 in] and 0.50 mm [0.020 in] inclusive shall be no more than two spots per 300 mm x 300 mm [11.81 in x 11.81 in] inspected.
• Opaque foreign fibers shall be < 13 mm [< 0.512 in] in length and average no more than two occurrences per 300 mm x 300 mm [11.81 in x 11.81 in] inspected.
Currently Viewing
Expand Your Knowledge and Unlock Your Learning Potential - Your One-Stop Source for Information!
© Copyright 2025 BSB Edge Private Limited.
