Patent ID: 9721853
Date: 2017-08-01
CPC Classifications: H01L

Claim:
1. A system comprising: a plurality of measuring units, the measuring units measuring a plurality of characteristics indicative of stress of a substrate, wherein each measuring unit measures a characteristic different from a characteristic measured by the other measuring units of the plurality of measuring units, and each measuring unit outputs a corresponding status signal for the characteristic measured, wherein the plurality of measuring units respectively comprise a reflectivity measuring unit, a crack measuring unit, and a warpage measuring unit, and wherein at least one of the plurality of characteristics is a number of cracks in the substrate, wherein said crack measuring unit measures at least one of the number of cracks in a major surface of the substrate or the number of cracks buried within the substrate, and comprises an X-ray diffraction unit or a digital image processing unit and provides an indication of the measured number of cracks; a control unit, wherein the control unit outputs an anneal control signal based on at least one of the status signals from the plurality of measuring units, the anneal control signal including a value selected from the group consisting essentially of a peak anneal temperature, a peak anneal duration, and combinations of same; and an anneal unit, wherein the anneal unit receives the anneal control signal and performs a millisecond anneal (MSA) based on the anneal control signal; wherein the plurality of measuring units are in a first chamber and the anneal unit is in a second chamber.