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Class 324/768 - Bipolar transistor


Subclass of Class 324 - Electricity: measuring and testing
Definition: Subject matter including a semiconductor device of the type
No. of applications: 4
Last issue date: 03/12/2009


Application No.Application TitleIssue Date
20090066359SEMICONDUCTOR DEVICE TEST SYSTEM HAVING REDUCED CURRENT LEAKAGE
A test circuit tests a device under test (DUT) uses a first switching device and a second switching device. The device under test (DUT) has a terminal for receiving a test signal. The first switching device has an output terminal for use in coupling the test signal to t...
03/12/2009
20080204068METHOD FOR ESTIMATING DEFECTS IN AN NPN TRANSISTOR ARRAY
A method for testing bipolar transistors in an integrated circuit includes first measuring first conductances of leakage paths between collectors and emitters of a first plurality of bipolar transistors with a known number of defects, calculating a per defect conductanc...
08/28/2008
20070096766CHOPPER TYPE COMPARATOR
In some examples, a chopper type comparator for comparing an analog voltage to be measured and a reference voltage by sampling and outputting an “H” level signal or an “L” level signal depending on the comparison result includes a capacitor configured to store a...
05/03/2007
20070085559Test device
A test device that can improve test reliability is provided. In the test device, an error detecting unit detects an error of inputted test signals to generate an error flag, a normal test unit performs a test operation according to the test signals when the error flag i...
04/19/2007
 
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