
Vishay Semiconductors
Introduction
Benefits of using bare die
• High design flexibility without package limitations
• High level of integration
• Temperature management with chip-on-board (COB) technology
• Highly accurate die placement
• Reduced system cost
• Customer specific design
• Possible process flow modification
Vishay service
• Design assistance
• Assembly assistance
• Die handling assistance
Wafer processing duty
• Wafer mapping/wafer inking
• Wafer thinning
• Wafer dicing
• Die sorting
• Visual inspection
Packaging and shipping methods
• Unsawn wafer: the wafers are delivered in a sealed bag and die are not singulated
• Sawn wafer on loose foil: the wafers are sawn and supplied on blue tape
• Sawn wafer on discoframe: the wafers are sawn and supplied on a blue tape in a plastic frame