XH Handlers

XH are gravity fed handlers designed to test SO packaged devices.

There are six main types of the handler:

• XH1L - wide temperature (-40°C..+150°C) handler for 150-mil SO packages;
• XH1H - high temperature (+25°C..+150°C) handler for 150-mil SO packages;
• XH1R - standard handler for 150-mil SO packages;
• XH3L - wide temperature (-40°C..+150°C) handler for 300-mil SO packages;
• XH3H - high temperature (+25°C..+150°C) handler for 300-mil SO packages;
• XH3R - standard handler for 300-mil SO packages.

Every XH handler can work as a standalone handler, or as a part of an in-line system. Devices are loaded into the input track of the handler automatically, using a tube shuttle loader, or manually, using an input tube holder. The devices inside the input track are soaked to pre-set temperature, then singulated and one by one tested in the contact block by the XTT tester.

The tested devices are sorted in two categories and collected in tubes.

When full, the tubes are replaced manually, using an output tube holder, or automatically from a tube shuttle unloader. Both the loader and the unloader tube shuttles can work with standard plastic and aluminum tubes for 150-mil and 300-mil SOIC devices.

A computer controls and constantly monitors the handler's operation by the use of optical sensors placed along the path. In case of a jam or need of loading/unloading, the program displays an appropriate message. Light and a sound signals attract the operator's attention. A user-friendly interface enables the operator to set up the system parameters according to the type of handler and device.

The In-line system consists of 3 handlers working at different temperatures - cold, hot and ambient.

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