Patent ID: 11901213
Assignee: CHROMA ATE INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A chip transfer device capable of floatingly positioning a chip, which transfers at least one chip from a first position to a second position, the chip transfer device comprising: a chip carrier, including at least one chip socket on an upper surface thereof, and each chip socket being provided with at least one vent hole; an air pressure switching valve, including a first inlet end, a second inlet end and an outlet end, wherein the first inlet end is communicated with a positive air pressure source, the second inlet end is communicated with a negative air pressure source, and the outlet end is communicated with the at least one vent hole of the chip carrier; and a control unit, electrically connected to the air pressure switching valve and controlling the air pressure switching valve to allow the at least one vent hole to be communicated with at least one of the positive air pressure source and the negative air pressure source, wherein when the at least one chip is placed in the at least one chip socket, the control unit controls the air pressure switching valve to allow the at least one vent hole to be communicated with the positive air pressure source, and an air flow which flows through the at least one vent hole from the positive air pressure source blows a lower surface of the at least one chip, so that the at least one chip is air-floated; and then, the control unit controls the air pressure switching valve to allow the at least one vent hole to be communicated with the negative air pressure source.