Friday Free Board Quiz – the prize is AM3352-SOM-IND. What does PCB pagameter Tg means? How it affects the PCB assembly process?


AM3352-SOM-1

AM3352-SOM-IND is industrial grade TI Sitara Cortex-A8 module running at 1Ghz.

After our summer vacation industrial grade AM3352-SOM-IND module with 4Gb SLC NAND Flash and AM3359-SOM-IND modules with and without SLC NAND Flash will be in stock.

You have chance to win this board!

To participate in the Quiz is enough to re-tweet the Twitter Quiz announcement message.

To double your chances  answer the quiz question.

You have time to re-tweet and/or answer until August 1st.

In Monday we will post the correct answer and ask random.org to generate random number in range then announce the winner and ship the board by post/airmail when we are back from our vacation on August 15th.

Good Luck!

9 Comments (+add yours?)

  1. Petr Moses
    Jul 29, 2016 @ 17:50:41

    Tg = glass transition temperature

    Reply

  2. SK
    Jul 29, 2016 @ 22:19:30

    It will be awesome if you make a blog post after the vacation about the status of old, current and future projects😛
    Like the A33 and H3 boards, the various router boards, ESP8266 dimmer and power outlet, Theres I laptop, any A40, ESP32 or ice40 8K planned boards. Am I missing something (besides the A64, and TI-SOMs for which we got update)?😛

    Reply

  3. Im Ug
    Jul 31, 2016 @ 10:38:31

    Glass transition temperature: The temperature at which the base material of the PCB becomes unstable and
    it is the value that needs to guarantee the mechanical stability of the PCB during its operationallifetime.
    Tg is a measure of when the epoxy in the pcb softens.

    Reply

  4. Im Ug
    Jul 31, 2016 @ 10:56:40

    Glass transition temperature: The temperature at which the base material of the PCB becomes unstable and
    it is the value that needs to guarantee the mechanical stability of the PCB during its operational lifetime.
    Tg is a measure of when the epoxy in the pcb softens.The higher the Tg, the lower the thermal expansion. Tg is 120-235 for
    FR4 and 150-180 for FR5. After that temperature the PCB material turns from hard material to a soft one.
    High tg prevents barrel cracking and pad fractures during soldering.

    Reply

  5. clattenzaun
    Aug 01, 2016 @ 11:39:19

    Tg is the temperature where the PCB changes its behaviour and gets some glass like properties.

    Reply

  6. Gordon
    Aug 11, 2016 @ 02:55:30

    Who won??

    Reply

  7. Devrim
    Aug 18, 2016 @ 04:57:01

    Glass transition temperature

    Reply

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