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About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
Webmaster:
    Kirt Blattenberger,

    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:

AirplanesAndRockets.com

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BGA Pad Count Matrix

BGA Pin Counting - RF CafeThis matrix is based on information found on the Emulation Technology website.

To use this table, select the ball grid array size, e.g. 8x8, and then look in the column giving the number of rows of pads; e.g., 2, and the intersecting cell shows the number of balls (or pins). Referring to the drawing to the left, in this example, an 8x8 array with a 2 rows of balls has 16 balls along the top and bottom edges and 8 balls along each side, for a total of 48 balls.

Ball Pitch Code Table (mm)
1 = 1.50 3 = 1.00 5 = 0.50 7= 2.50 9= 0.65
2 = 1.27 4 = 0.75 6 = 0.80 8= 2.54  

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