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  • Overview

    Quad flat package (QFP) is popular among the quad packages. The reason is the fine etching or stamping lead frames enables QFP to contain more leads and feature a smaller profile to perform better electrical characteristics by shortening the interconnection (the lead width can be as small as 0.16mm while the outer lead pitch is 0.4mm only). The thinner and flexible leads in gull-wing shape also provide better 2nd-level reliability (package-to-PCB reliability).

    The package with drop-in HS can allow more than 50% power dissipation compared with a conventional package (e.g. in QFP 28X28mm, the allowable power of standard type and the type with HS is about 2.1W and 3.5W respectively). This drop-in HS drives off the heat from the chip more easily by extending the conduction area, and transferring more heat via the lead frame. QFP with drop-in HS is to package sizes of 14X20, 28X28, and 32X32mm.

    Application

    Products
    ‧Portable consumer products (PDA, Digital camera...)
    ‧System board
    ‧Power controller

    Quad packages have been used for years to meet increasing challenges of faster processors / controllers, ASICs, DSPs, gate arrays, logic, memory ICs (EEPROM, Flash, DRAM & SRAM), PC chipset, video-DAC, multi-media and other related application.

    HS-QFP is suitable for use in high thermal applications like Power & Voltage Regulators, Power Amplifi ers, etc.

    Features

    High-speed data processing
    High density interconnection
    Cost Competitive
    MCM /Stack structure design
    High thermal conductive
    Fine Pitch wireobond capability
    Pb-free process ready and available
    JEDEC standard compliant

    Reliability

    Package Level
    Test Item Reference Standard Condition/Duration
    MSL JEDEC 22-A103 Level 3, 30°C/60% RH, 192 hrs
    TCT JEDEC 22-A104-B -65°C to 150°C, 500/1000 cycles
    HAST JEDEC 22-A118 130°C/85% RH, 33.5 PSI 48/96 hrs
    HTST JEDEC 22-A103-B 150°C, 500/1000 hrs
    THT JEDEC 22-A101-B 85°C/85%RH 500/1000 hrs
    PCT JEDEC 22-A102 121°C/100%RH/15 psi ,96/168/300 hours