Burn-in test system and method

Patent metadata

Field	Value
Publication number	US-9714977-B2
Application number	US-201514855641-A
Country	US
Kind code	B2
Filing date	Sep 16, 2015
Priority date	May 14, 2015
Publication date	Jul 25, 2017
Grant date	Jul 25, 2017

Abstract

A burn-in test system may include a burn-in test chamber, a heating chamber and a cooling chamber. The burn-in test chamber may receive an object thereon. The burn-in test chamber may perform a burn-in test at a burn-in test temperature. The heating chamber may be positioned at a first sidewall of the burn-in test chamber, and may preheat the object. The cooling chamber may be positioned at a second sidewall of the burn-in test chamber, and may cool the object.

First claim

What is claimed is:

1. A burn-in test system comprising:
a burn-in test chamber configured to perform a burn-in test at a test temperature;
a heating chamber arranged at a first sidewall of the burn-in test chamber, wherein the heating chamber is configured to preheat an object;
a cooling chamber arranged at a second sidewall the burn-in test chamber, wherein the cooling chamber is configured to cool the object to a room temperature; and
a transferring member configured to transfer the object between the burn-in test chamber and the heating chamber, and between the burn-in test chamber and the cooling chamber,
wherein the transferring member is shielded by adiabatic layer.

2. The burn-in test system of claim 1 , wherein a plurality of the objects is mounted on a burn-in board.

3. The burn-in test system of claim 2 , wherein a plurality of the burn-in boards is received on a rack.

4. The burn-in test system of claim 1 , wherein the heating chamber is configured to heat the object to a temperature of about 50% to about 100% of the test temperature.

5. The burn-in test system of claim 1 , wherein the burn-in test chamber comprises a test room configured to heat the object to the test temperature, maintain the test temperature of the object, and perform a burn-in test.

6. The burn-in test system of claim 1 , wherein the heating chamber, the burn-in test chamber and the cooling chamber are arranged in a line.

7. The burn-in test system of claim 1 , wherein the burn-in test chamber comprises an insertion slot adjacent to the heating chamber and an ejection slot adjacent to the cooling chamber, and the insertion and ejection slots of the burn-in test chamber are substantially perpendicular to each other.

8. The burn-in test system of claim 1 , wherein the burn-in chamber comprises one slot, the heating chamber and the cooling chamber are connected to each other, and the heating chamber and the cooling chamber are movable to be alternately connected to the slot of the burn-in test chamber.

9. A burn-in test system comprising:
a burn-in chamber block including a plurality of burn-in chambers;
a temperature-controlling block configured to be separated from the burn-in chamber block, wherein the temperature-controlling block is provided to perform pre-process and post-process for a burn-in test with respect to an object; and
a transferring block configured to transfer the object between the burn-in chamber block and the temperature-controlling block,
wherein the transferring block comprises a plurality of adiabatic chambers.

10. The burn-in test system of claim 9 , wherein the temperature-controlling block comprises at least one temperature-controlling chamber, and the temperature-controlling chamber comprises:
a heating chamber configured to heat the object to a temperature of about 50% to about 100% of a test temperature; and
a cooling chamber configured to cool the object to a room temperature.

11. The burn-in test system of claim 9 , wherein the temperature-controlling block is combined with the adiabatic chambers of the transferring block to heat or cool the adiabatic chambers.

12. The burn-in test system of claim 9 , further comprising:
a sorting block configured to sort and receive the objects in accordance with test results; and
a server configured to store the test results and control the temperature-controlling block, the transferring block and the sorting block.

13. A burn-in test method comprising:
Loading, into a heating chamber, a first rack receiving an object thereon;
preheating the first rack in the heating chamber;
loading the first rack into a burn-in test chamber, and loading, into the heating chamber, a second rack receiving an object thereon;
preheating the second rack in the heating chamber while heating the first rack in the burn-in test chamber;
loading, into the heating chamber, a third rack receiving an object thereon after loading the first rack into a cooling chamber, and loading the second rack into the burn-in test chamber; and
performing a burn-in test on the second rack in the burn-in test chamber while cooling the first rack in the cooling chamber and preheating the third rack in the heating chamber,
wherein the first, the second and the third racks are simultaneously processed in a burn-in system including the heating chamber, the burn-in test chamber and the cooling chamber.

14. The burn-in test method of claim 13 , wherein the first to third racks are heated to a temperature of about 50% to about 100% of a test temperature in the heating chamber.

Assignees

• Sk Hynix Inc
• Unitest Inc

Inventors

• Jung Woo Sik
• Kim Dae Kyoung

Classifications

• G01R31/2867

  Handlers or transport devices, e.g. loaders, carriers, trays · CPC title

• G01R31/2862 Primary

  Chambers or ovens; Tanks · CPC title

• G01R31/2874

  related to temperature · CPC title