Fabrication method of semiconductor integrated circuit device
First Claim
1. A fabrication method of semiconductor integrated circuit devices, comprising the steps of:
- (a) taking one test board whose testing has been completed out of a thermostatic bath while testing is underway on a plurality of semiconductor integrated circuit devices mounted in a plurality of test boards, placed therein;
(b) dislodging the semiconductor integrated circuit devices from the test board taken out;
(c) mounting a plurality of semiconductor integrated circuit devices to be tested in the test board with the semiconductor integrated circuit devices dislodged therefrom; and
(d) taking the test board mounted with the semiconductor integrated circuit devices into the thermostatic bath and putting the test board taken in to the test.
3 Assignments
0 Petitions
Accused Products
Abstract
A memory test is carried out on semiconductor integrated circuit devices including a semiconductor memory at low cost with efficiency. In a test burn-in system, twenty-four test boards are processed in sequence with time differences, and the test boards are circulated one by one. In this case, the memory test is conducted with the sequence of single board processing: the test is started with a test board in which semiconductor integrated circuit devices have been embedded, and semiconductor integrated circuit devices are discharged, beginning with a test board that has undergone the test.
24 Citations
10 Claims
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1. A fabrication method of semiconductor integrated circuit devices, comprising the steps of:
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(a) taking one test board whose testing has been completed out of a thermostatic bath while testing is underway on a plurality of semiconductor integrated circuit devices mounted in a plurality of test boards, placed therein;
(b) dislodging the semiconductor integrated circuit devices from the test board taken out;
(c) mounting a plurality of semiconductor integrated circuit devices to be tested in the test board with the semiconductor integrated circuit devices dislodged therefrom; and
(d) taking the test board mounted with the semiconductor integrated circuit devices into the thermostatic bath and putting the test board taken in to the test. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10-12. -12. (canceled)
Specification