Z Corporation

Infineon Technologies Ag

3d Systems, Inc.

Kevin Roche

Joshua P Kinsley

David B Russell

Thomas Davidson

Walter Henry Zengerle, Iii

Andrew Berlin

Benjamin Daniel Sweet-Block

Robert Anthony Phillips

Darul Kisai

Andres T Hernandes

Andres Tomas Hernandez

Emanuel-Petre Eni

Efren Tarlac

Josef Niedermeyr

Alfonso Diy

Walter H Zengerle Iii

An electronic test equipment apparatus includes a power terminal configured to receive power, an interface for a device under test (DUT), at least one power transistor connected in series between the power terminal and the interface for the DUT, and a protection circuit. The protection circuit is configured to: switch on the at least one power transistor, to electrically connect the power terminal to the DUT through the interface as part of a test routine; and subsequently automatically switch off the at least one power transistor after a predetermined delay, to electrically disconnect the power terminal from the DUT regardless of whether the DUT passes or fails the test routine. A voltage clamp circuit for electronic test equipment and corresponding methods of testing devices using such electronic test equipment are also described.

Electronic test equipment apparatus and methods of operating thereof

A three-dimensional printer uses inkjet-type printheads to rapidly prototype, or print, a three-dimensional model. A powder feeder includes a conveyor system and a metering system to deliver powder to a build area in measured quantities. The powder feeder also includes a vacuum system for loading powder into a feed reservoir or chamber. The vacuum system can also be used to cleanup excess powder. Other powder control features include powder gutters and magnetic powder plows. During printing, a cleaning system operates to remove powder from the printheads. In the event of a printhead or jet failure, the failure can be detected and corrective measures taken automatically. After printing, the model can be depowdered and infiltrated in an enclosure.

Three-dimensional printer

Growing community of inventors

Lowell, MA, United States of America

Kevin Roche