What is New in IPC-7351C.pdf - 第19页
PC B L ibr ar i es Pr e s ents : Wh at is N ew i n IPC- 7351C Q uad Flat No - lead ( Q FN) S O T23 Q uad Flat Pack ( Q FP) B all G r id A rr ay (B GA) A xial R esis tor Si lksc r e en Visible A f t er As se mbly
PCB Libraries Presents:
What is New in IPC-7351C
Gull Wing & J-Lead, Bottom Only & Chip
Gull Wing & J-Lead Polarity
Bottom Only Polarity
Absence of Silkscreen
2-pin Component Polarity 2-pin Component Non-polarity
Silkscreen Polarity Marking
PCB Libraries Presents:
What is New in IPC-7351C
Quad Flat No-lead (QFN)
SOT23
Quad Flat Pack (QFP)
Ball Grid Array (BGA)
Axial Resistor
Silkscreen Visible After Assembly
PCB Libraries Presents:
What is New in IPC-7351C
Assembly Shops Like Dots but, They Consume Space
Gull Wing & J-Lead Polarity
Bottom Only Polarity
Outside Courtyard
2-pin Diode/LED Polarity 2-pin Capacitor Polarity
Alternate Silkscreen Polarity Marking