| abstract |
ISSUES TO BE SOLVED TO PROVIDE AN ALUMINUM RIBBON FOR ULTRASONIC BONDING, IS ABLE TO REALIZE THE HIGH BONDING STRENGTH AND IS ABLE TO MAINTAIN DEFINED LEVEL OF BONDING STRENGTH, DURING SEVERAL TEN THOUSAND BONDING CYCLES. MEANS TO BE SOLVED AN ALUMINUM RIBBON FOR ULTRASONIC BONDING IS CONSISTED ALUMINUM METAL OR ALUMINUM BASED ALLOY, THE PURITY OF ALUMINUM IS MORE THAN 99.99 WT %, AND TOTAL AMOUNT OF ORGANIC CARBON NON-IONIC SURFACTANT LESS THAN 500 MOLECULAR WEIGHT VAPORIZED AND ADHERED IS 100-1,000 µG/M2 ON THE MIRROR FINISHED BRIGHT SURFACE OF ALUMINUM RIBBON. |