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Contact Springs for Trimming Potentiometers in The Electronics and Medical IndustriesStampings of Contacts for The Electrical IndustryLeadframes for The Electronics IndustryStamped Clips for The Aerospace IndustryCurrent Sensor Resistor Heat Sinks for Circuit Board ComponentsStampings and Assemblies of Components for The Medical Industry
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Stamped Leadframes for the Electronics Industry

(click on thumbnail to enlarge)

A manufacturer of electronics needed a series of leadframes stamped for use in various circuit boards. OMNI Engineering, Inc. was contracted because of our reputation for providing precision miniature and micro miniature stampings.

Composed of a C11000 copper alloy, and C26000 cartridge brass, the leadframes featured overall dimensions of .320" to .400" in length, and .571" to .938" in width, with tolerances of ±0.00" and ±0.003" respectively. The copper alloy was .0050" thick, while the cartridge brass was .0080" thick, both met tolerances of ±0003".

Manufacturing of these intricate parts is performed on our 22 ton Bruderer presses, which are capable of holding tolerances of ±0.0005". Stamped leadframes are then plated with tin, palladium nickel, and gold, quality control is maintained through dimensional, gage, and visual Inspections, and F.O.V. Smartscope (automated inspection system). In addition to our own stringent quality standards, this project also requires compliance with MIL-STD-202 and ASTM B-571 standards. We currently manufacture 50,000 to 500 million of these components for this customer annually. For more information on this project, or the processes used to manufacture it, see the table below or contact us directly.

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Stamped Leadframes for the Electronics Industry

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Stamped & Plated Leadframe Project Highlights

Product Description These Leadframes are used in circuit boards components.
Capabilities Applied/Processes Primary:
Miniature/Micro Miniature Stampings
Precision Stampings

Secondary:
Tin Plating
Palladium Nickel Plating
Gold Plating
Equipment Used to Manufacture Part 22 Ton Bruderer Presses
Progressive Dies
Overall Part Dimensions Length: 0.320" ± 0.001 to 0.400 ± 0.001
Width: 0.571" ± 0.003 to 0.938"
Tightest Tolerances ± 0.0005"
Material Used C11000 Copper Alloy
Thickness: 0.0050" ± 0.0003 - 0.0080" ± 0.0003
C26000 Cartridge Brass
Thickness: 0.0080" ± 0.0003
Material Finish
Tin Plated
Palladium Nickel Plated
Gold Plated
Models
Bourns
P/N LFF480001
P/N 34916-24804
P/N 34916-25201
P/N 34916-25901
P/N 34916-28602
P/N 34916-30202
P/N 34916-30702
In process testing/inspection performed Dimensional Inspection, Visual Inspection, Gage Inspection, F.O.V. Smartscope (automated inspection system)
Industry for Use Electronics
Volume 50,000 - 500,000,000 annually
Delivery/Turnaround Time 2 - 4 weeks
Delivery Location Costa Rica, Taiwan, Mexico
Standards Met Customer Specifications, 2D CAD Drawing
MIL-STD-202
ASTM B-571
Product Name Leadframes

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