Electronics tester

Patent metadata

Field	Value
Publication number	US-11821940-B2
Application number	US-202318176965-A
Country	US
Kind code	B2
Filing date	Mar 1, 2023
Priority date	Mar 3, 2017
Publication date	Nov 21, 2023
Grant date	Nov 21, 2023

Abstract

A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.

First claim

What is claimed is:

1. A cartridge comprising:
an electronic device holder having a formation for removably holding an electronic device having an input contact and a light emitter;
an input contact on the electronic device holder to connect to the input contact on the electronic device to provide an input electric power through the input contact on the electronic device holder to the input contact on the electronic device, the input electric power causing the light emitter to transmit light;
a light detector mounted to the electronic device holder and positioned to detect the light and generate an output electric power in response to a magnitude of the light; and
an output contact connected to the light detector to measure the output electric power.

2. The cartridge of claim 1 , wherein the electronic device holder defines a cavity into which the light is directed and through which the light transmits from the light emitter to the light detector.

3. The cartridge of claim 2 , further comprising:
a light absorbing coating on surfaces of the cavity.

4. The cartridge of claim 1 , further comprising:
a socket having a formation for holding the electronic device;
a lid, the socket and the lid jointly forming the electronic device holder; and
a pusher plate that is mounted for movement relative to the lid, the lid being locatable over the socket and movable towards the socket, the movable mounting of the pusher plate allowing for the electronic device to move the pusher plate relative to the lid, the pusher plate having an opening through which the light transmits from the light emitter to the light detector.

5. The cartridge of claim 4 , further comprising:
a spring connected between the lid and the pusher plate, the pusher plate being linearly movable by the first device relative to the lid to cause deformation of the spring, the spring being a coil spring through which the light propagates.

6. The cartridge of claim 1 , further comprising:
a temperature modification device on a first side of the device holder which, when operated changes temperature to cause a temperature differential between the temperature modification device and the electronic device and a transfer of heat between the temperature modification device and the electronic device to modify a temperature of the electronic device.

7. The cartridge of claim 6 , further comprising:
a heat sink on a side of the device holder opposing the temperature modification device, the heat sink having a surface for absorbing the light, absorption of the light creating heat in the heat sink; and
a heat dissipation device thermally connected to the heat sink to remove the heat from the heat sink.

8. The cartridge of claim 7 , further comprising:
a light detector mounted to the electronic device holder and positioned to detect the light and generate an output electric power in response to a magnitude of the light; and
an output contact connected to the light detector to measure the output electric power.

9. A method of testing one or more electronic devices comprising:
inserting an electronic device having an input contact and a light emitter into a device holder;
connecting an input contact on the electronic device holder to the input contact on the electronic device;
providing an input electric power through the input contact on the electronic device holder to the input contact on the electronic device, the input electric power causing the light emitter to transmit light;
detecting the light;
transforming the light that is detected to an output electric power;
measuring the output electric power through an output contact; and
removing the electronic device from the electronic device holder.

Assignees

• Aehr Test Systems

Inventors

• Jovanovic Jovan
• Deboe Kenneth W
• Steps Steven C
• Lindsey Scott E

Classifications

• H10P72/76

  using mechanical means, e.g. clamps or pinches · CPC title

• H10P72/7616

  characterised by a coating, a hardness or a material · CPC title

• G01R31/2642

  Testing semiconductor operation lifetime or reliability, e.g. by accelerated life tests · CPC title

• G01R31/2601

  Apparatus or methods therefor (G01R31/2607, G01R31/2642 take precedence) · CPC title

• H05K7/1417

  having securing means for mounting boards, plates or wiring boards (H05K7/1461 takes precedence) · CPC title