Method for manufacturing a semiconductor device including wafer aging, probe inspection, and feeding back the results of the inspection to the device fabrication process
First Claim
1. A method for manufacturing a semiconductor device, including:
- a wafer completion process comprising a plurality of processing steps for incorporating functions in a wafer, the wafer having a plurality of chips;
a wafer aging process for aging the wafer fabricated by said wafer completion process;
a probe inspection process for inspecting the functions of the wafer aged by said wafer aging process and distinguishing between non-defective and defective chips;
a dicing process for separating one by one the plurality of chips in the wafer inspected by said probe inspection process;
a selection process for sorting out the chips separated by said dicing process into non-defective and defective chips in accordance with a failure information provided from said probe inspection process; and
a feedback process for analyzing the failure information provided from said probe inspection process, estimating a cause failure and feeding back the result of the estimation of the cause of failure to said wafer completion process, wherein said feedback process includes a failure map making process for making a failure map in accordance with said failure information, and an analysis process for analyzing which processing steps in said wafer completion process causes a failure, on the basis of said failure map.
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Accused Products
Abstract
The present invention provides a method for manufacturing a highly reliable semiconductor device without waste by incorporating predetermined functions into a wafer in a wafer completion process, aging the wafer in a wafer aging process, distinguishing between non-defective and defective chips in a probe inspection process, separating chips in the wafer one by one in a dicing process, sorting out the chips into non-defective and defective chips in a selection process, then analyzing failure information and feeding back the result of the analysis to the wafer completion process in a feedback process, thereby quickly analyzing and repairing a failure process on reliability in the wafer completion process.
146 Citations
22 Claims
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1. A method for manufacturing a semiconductor device, including:
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a wafer completion process comprising a plurality of processing steps for incorporating functions in a wafer, the wafer having a plurality of chips; a wafer aging process for aging the wafer fabricated by said wafer completion process; a probe inspection process for inspecting the functions of the wafer aged by said wafer aging process and distinguishing between non-defective and defective chips; a dicing process for separating one by one the plurality of chips in the wafer inspected by said probe inspection process; a selection process for sorting out the chips separated by said dicing process into non-defective and defective chips in accordance with a failure information provided from said probe inspection process; and a feedback process for analyzing the failure information provided from said probe inspection process, estimating a cause failure and feeding back the result of the estimation of the cause of failure to said wafer completion process, wherein said feedback process includes a failure map making process for making a failure map in accordance with said failure information, and an analysis process for analyzing which processing steps in said wafer completion process causes a failure, on the basis of said failure map. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14)
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12. A method for manufacturing a semiconductor device, including:
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a wafer completion process comprising a plurality of processing steps for incorporating functions in a wafer, the wafer having a plurality of chips; a wafer aging process for aging the wafer fabricated by said wafer completion process, inspecting the functions of the wafer and distinguishing between non-defective and defective chips; a probe inspection process for inspecting the functions of the wafer aged by said wafer aging process and distinguishing between non-defective and defective chips; a dicing process for separating one by one the plurality of chips in the wafer inspected by said probe inspection process; a selection process for sorting out the chips separated by said dicing process into non-defective and defective chips in accordance with a failure information provided from said wafer aging process and that provided from said probe inspection process; and a feedback process for analyzing the failure information provided from said wafer aging process and that provided from said probe inspection process, estimating a cause of failure and feeding back the result of the estimation of the cause of failure to said wafer completion process, wherein said feedback process includes a failure map making process for making a failure map in accordance with said failure information, and an analysis process for analyzing which processing steps in said wafer completion process causes a failure, on the basis of said failure map. - View Dependent Claims (13, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification