Patent ID: 9612274
Date: 2017-04-04
CPC Classifications: G01R

Claim:
1. A probe card comprising: a multi-layer substrate structure including a plurality of insulating substrates, the plurality of insulating substrates including a first insulating substrate, a second insulating substrate, a third insulating substrate, and a fourth insulating substrate; a printed circuit board (PCB) on a first surface of the multi-layer substrate structure, the PCB including a test circuit; a stiffener on the PCB; a first temperature controlling unit between the first insulating substrate and the second insulating substrate; a second temperature controlling unit between the third insulating substrate and the fourth insulating substrate, the second temperature controlling unit including a block and a passageway, and the block including a plurality of holes, the passageway configured to flow fluid therethrough; a plurality of test patterns passing through the multi-layer substrate structure and the first temperature controlling unit, the plurality of test patterns configured to be electrically connected to the test circuit, the plurality of test patterns passing through the plurality of holes included in the block; and a plurality of needles on a second surface of the multi-layer substrate structure, the plurality of needles electrically connected to the plurality of test patterns.