I recently found myself having to make a footprint for a BGA/CSP-style part with 0.5mm pitch (from the center of one ball to the center of the next) and 0.3mm ball diameter. That doesn’t leave a lot of room, and you need to be extremely careful with your footprint design if you want to have decent yields, which is where good documentation and manufacturing suggestions come in handy. The chip maker behind the chip I was using didn’t see fit to provide any suggestions (shame on them), but I remembered an excellent app note from NXP on designing footprints for their BGA chips and found one with identical pitch and ball dimensions (TFBGA180 in this case). If you’re ever wondering how to properly design a BGA footprint, AN10778 is one of the better starting points out there. (Homework assignment: some of the FPGA vendors also have good app notes on this if you want to do some digging.)
8-6-2021 (August 6, 2021) is the Snakiest day of the year and it’s also this year’s CircuitPython Day! The day highlights all things CircuitPython and Python on Hardware. See you there!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Maker Business — Over 500,000 manufacturing jobs are going unfilled
Wearables — Stop the sweat
Electronics — Hummm… 60Hz noise in your amplifier driving you nuts?
Python for Microcontrollers — Python on Microcontrollers Newsletter: EuroPython 2021, CircuitPython 7.0.0 alpha 5 and more! #Python #Adafruit #CircuitPython @micropython @ThePSF
Adafruit IoT Monthly — Smart Agriculture, an E-Ink Newspaper, and more!
Microsoft MakeCode — MakeCode for the micro:bit - 2021 Release!
EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey
New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — JP’s Product Pick of the Week 7/27/21 SHARP Memory Display Breakout @adafruit @johnedgarpark #adafruit #newproductpick
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