Indium Solder Spheres

Introduction

Indium Corporation produces spheres with accurate diameters; shiny surface finishes; and highly spherical shapes. Our spheres are made in dedicated manufacturing
cells supported by Statistical Process Controls (SPC). All spheres are made from pure metals, combined to produce exact alloy compositions. After forming, spheres are classified by size using an automated, high capacity process that results in smooth, bright surfaces.

Key Performance Needs:

• High purity alloy
• Roundness (sphericality)
• Accurate diameter
• Non-clumping
• Non-darkening

Standard Solder Materials:

• 99.99% In
• 63.0Sn/37.0Pb
• 62.0Sn/36.0Pb/2.0Ag
• SAC405: 95.5Sn/4.0Ag/0.5Cu
• SAC305: 96.5Sn/3.0Ag/0.5Cu
• SAC387: 96.5Sn/3.8Ag/0.7Cu

Advantages

Indium Corporation solder spheres are used by Semiconductor Packaging companies around the world. Our customers tell us that we offer the following advantages over competitor solder spheres:
• Consistent shininess allows ease of automated inspection
• Use of pure alloy guarantees consistent reflow and wetting
• Copper limits tighter than J-STD-004 for SAC alloys
• Homogeneity of alloy within each solder sphere, from
our unique manufacturing process

Standard Sizes:

• 0.300mm (12mil) to 0.760mm (30mil)

Related Products

SnPb46Bi8, SnPb36Ag2, SnPb37, PbIn25, PbIn40, PbSn10

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