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Exposed Pad TQFP Exposed pad Low Profile Quad Flat Pack High performance applications which require improved power dissipation benefit from the use of an exposed pad TQFP, respectively. Electrical performance is also improved with exposed pad as a ground plane. E-PAD TQFP (Exposed Pad Thin Profile Quad Flat Pack) Thermal performance is improved up to 25% when the die pad is soldered on PCB compared with conventional TQFPs and is suitable for 2 - 2.5 watts power application. Electrical performance is improved with exposed pad as a ground plane. The body size ranges from 10x10 mm to 20x20 mm and pin counts from 64 to 176 that are ready for your choice. APPLICATIONS Exposed Pad TQFP are ideal for a wide range of devices such as microprocessors , controllers, DSPs, high speed logic, FPGAs, PLDs, and ASICs. Applications include laptops, telecom, high end audio/video and CPU/GUI boards. FEATURES E-PAD TQFP • Exposed Pad Heat Sink • 7X7 and 20x20 mm body sizes • 48 to 176 lead counts available • Stack die design / Multiple chip module design • Copper lead frames • Full in-house design ability • JEDEC standard outlines E-PAD TQFP Process Flow Material Normal Lead Free/Green Wafer Back Grinding (Option) Wafer Mount Wafer Saw & Clean 2nd Optical Inspection Die Attach Epoxy Cure Plasma Clean Wire Bond Gold Wire,Copper Wire 3rd Optical Inspection Molding Marking White ink or Laser Post Mold Cure Deflash (Option) laser deflash or chemical deflash Deflash & Trim Solder Plating Sn/Pb 85/15 Matte Tin, Sn/Bi 98/2 Forming & Singulation Final Visual Inspection Packing Tray     RELIABILITY • Moisture Sensitivity JEDEC Level 3 (30°C / 60% RH / 192 hours) • Temp. Cycle Test -65/+150°C, 1000 cycles • Pressure Cooker 121°C, 100% RH, 2 atm, 168 hours • High Temperature Storage Life 150°C ,1000 hours   Note: Sample preconditioning prior to environmental tests are as follows: (Normal) Baking 125°C, 24 hours ◊ Pre-con: 30°C / 60% RH / 192 hours ◊ IR Reflow 3 times:240°C (Body Volume<350mm3), 225°C (Body Volume>350mm3) (Lead Free) Baking 125°C, 24 hours ◊ Pre-con: 30°C / 60% RH / 192 hours ◊ IR Reflow 3 times, 260°C

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