When Intel Custom Foundry started, Intel was in the lead with process technology and that may have led to a sense of arrogance and also apprehension about the need to open up and disclose information to third parties like design rules. Now that Intel is far behind TSMC and Samsung in semiconductor technology, they have less to lose and hopefully they have been humbled enough to be desperate for foundry customers.
When Intel Custom Foundry started, Intel was in the lead with process technology and that may have led to a sense of arrogance and also apprehension about the need to open up and disclose information to third parties like design rules. Now that Intel is far behind TSMC and Samsung in semiconductor technology, they have less to lose and hopefully they have been humbled enough to be desperate for foundry customers.