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UTAC - United Test and Assembly Test Center, Ltd.

UTAC - United Test and Assembly Test Center, Ltd. Patent applications
Patent application numberTitlePublished
20090194871SEMICONDUCTOR PACKAGE AND METHOD OF ATTACHING SEMICONDUCTOR DIES TO SUBSTRATES - A method of mounting a semiconductor die on a substrate with a solder mask on a first surface includes placing a die on the solder mask, and mounting the die to the substrate by applying pressure and heat. The applied pressure ranges from a bond force of approximately 5 to 10 Kg, the heat has a temperature range from approximately 150 to 200° C. and the pressure is applied for a range of approximately 1 to 10 seconds.08-06-2009