Quick Overview Max 300×320 mm soldering area INFRARED IC HEATER T-962A works automatically by micro-computer control. We adopt fast infrared radiation for heating and circular-wind to do temperature equalization, so the temperature in the drawer is
Electronics Forum | Tue Mar 21 02:15:26 EST 2006 | pavel_murtishev
Good morning Dave, Here are some of my assumptions. Please correct me if I am wrong. 1. Mask opening. Due to mask to PCB misregistration mask is not always centered relative to pad center how is should be. Sometimes edge of the mask matches with ed
Electronics Forum | Thu Oct 15 11:04:28 EDT 2009 | spitkis2
Thanks Jim. Pressing the QFN into paste was what I thought of, just wasn't sure if it would cause solder paste to be pressed outside the pad area and possibly bridge with an adjacent pad. Do you recall the ratio of paste coverage to the pad area?
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=1.0 ±50/Chip Cpk>=1.0 ±35/QFP Cpk>=1.0 ±50/Chip Cpk >=1.0 ±35/QFP Cpk >=1.0 Productive Highest Tact (CPH/sec) 25,000/0.144 19,000/0.189 7,200/0.5 Effectiveness Tact (CPH/sec) 17,000/0.21 14,000/0.26 5,000/0.72 PCB trans
Industry News | 2018-10-18 11:19:07.0
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