This trophy is titled "
Tinker" and it's a story based trophy during the Back to Pasadena Main Quest.
After unlocking
Jacobs has to speak to Alvin in the Laboratory. Alvin will teach you how to upgrade your plasma weapons. In order to progress with the story, you must upgrade your Plasma Rifle.
Open your Inventory and highlight the Plasma Rifle. Press the Triangle Button to open the upgrade process. Just insert three chips with matching symbols on their sides. When all lines between the chips are green, press Triangle Button again to activate the upgrade and unlock the trophy.