Did a SWOT analysis (a tool for auditing an organization and its environment) for you.
Tech to Infinion
strengths,
Better pay. More stability than Infinion.
weaknesses,
More politics.
opportunities,
You can move on to lots of roles from quality deparment. Hugh potential to grow.
threats
If semiconductor moves to China, it is a threat(or opportunity)
Infinion to Tech
strengths,
You can use your technical interest better. VLSI Design is a top-notch job.
weaknesses,
Small exposure to business
opportunities,
You can specialize to becomes a know-how in IC design
threats
Infinion had lots of changes. (German does not thing Semiconductor is in its pie, so Infinion was spinned off from Siemens AG, and recently, it dropped another spin-off to be called Qimonda, being an Asia company.) I think you can learn lots of politics in Infinion too.
I am interested to know more about the politics in Infinion, too. Who knows it, please?