IWR1642: What's the solder ball alloy composition

Wesley He

Expert 6205 points

Part Number: IWR1642

Hi team,

Will you please tell me the detailed alloy composition of the solder balls on the IWR1642 package?

The data sheet only says "SNAGCU"; What is the correct SAC composition in IWR1642's ball finish?

Thanks.

Best Regards,

Wesley

over 5 years ago

0 Akash Gondalia over 5 years ago

TI__Guru 50240 points

Hi Wesley,

I've asked a team member to look into this and we should have an answer for you soon.

Cheers,

Akash

0 CHETHAN KUMAR Y.B. over 5 years ago

TI__Mastermind 25835 points

Wesley,

SNAGCU would refer to Sn (Tin) AG(Silver) Cu (Copper) as individual elements to form a ball alloy. Is that you were asking for or something else?

Thanks and regards,

CHETHAN KUMAR Y.B.

0 Wesley He over 5 years ago in reply to CHETHAN KUMAR Y.B.

TI__Expert 6205 points

Hello Chethan,

Customer wants to know the excart number of the material. For example, SAC405 Solder Spheres are lead-free Tin/Silver/Copper alloys that contain 95.5% Tin (Sn), 4% Silver (Ag), and 0.5% Copper (Cu)

Can you please help to clarify the detail information?

Thanks.

Wesley

0 CHETHAN KUMAR Y.B. over 5 years ago in reply to Wesley He

TI__Mastermind 25835 points

Wesley,

It would be 97.7% Tin (Sn), 3% Silver (Ag), and 0.5% Copper (Cu).

Thanks and regards,

CHETHAN KUMAR Y.B.

Sensors

Sensors forum

IWR1642: What's the solder ball alloy composition