Patent ID: 8439249
Filing Date: 2013-05-14
Classification: H01L

Abstract:
1. A method of making a semiconductor device including bonding two first bonding partners to a second bonding partner, comprising: providing a device comprising a lower tool and an upper tool, the upper tool comprising two plungers each having a bottom side facing the lower tool at which bottom side a vacuum is creatable; providing, for each of the plungers, a pressure transmission element configured as a porous body which is arranged on that side of the respective plunger facing the lower tool; positioning the second bonding partner in the lower tool; picking up each of the first bonding partners at the bottom side of another one of the plungers by creating a vacuum at the bottom side of the respective plunger, including positioning the first bonding partners above predefined bonding sites on the second bonding partner; and pressing the first bonding partners against the second bonding partner by using the plungers with a predefined contact pressure of at least 900 N/cm wherein before picking up the first bonding partners by vacuum, disposing a portion of a compensation film between the plungers and the first bonding partners.