At California Fine Wire Co. we use precision rolling mills to provide flat wire with very tight dimensions. Our flat wire is used in a number of applications including lead ribbon, voice coil winding, and microelectronic interconnections. Ribbon wire can be produced in thicknesses between 0.0002″ and 0.050″, and in widths between 0.002″ and 0.100″. Other wire sizes may also be possible to produce, depending on the material and required dimensions. Typically, a flattening ratio of up to 40:1 can be achieved while still maintaining a minimum corner radius.

Rolling mills are designed to operate dry in order to produce wire with a clean, oil-free surface, which eliminates the need for secondary cleaning processes. However, for high purity applications, both ultrasonic cleaning and chemical cleaning processes are available.

Our consultants can assist customers regarding the availability of specific alloys and the ideal metal for their particular application. We carry numerous metal wire alloys including stainless steel, copper, and precious metals; that meet all applicable DFARS, REACH, and RoHs requirements. Quality testing, including tensile testing, dimensional inspection, and resistance testing, can be performed according to our certified procedures to verify conformance to customer specifications.

Wire can be processed in a range of production volumes for an array of applications throughout the defense, medical, aerospace, and electronics industries. Wire may be spooled or cut to length, as desired by the customer. All lead times are evaluated on a job by job basis. For additional information about our wire flattening capability, see the table below or contact us directly.

FLATTENING & ROLLING SPECIFICATIONS

Process

Flattening
Rolling

Wire Shape

Ribbon/ Flat

Materials

Aluminum
Copper
Nickel
Nickel Alloys
Resistance Wire Alloys
Thermocouple Alloys
Gold

Silver
Platinum
Platinum Alloys
Glass Sealing Alloys
Bonding Wire
Numerous Additional Options Available

Finish

Bare

Plated

Flat Wire Width

0.0004″ to 0.10″
10 microns to 2.5 mm
Other Sizes on Request

Flattening Ratio

Up to 40:1

Wire Length

Cut Lengths: 0.125″ to 72″
No Limit on Spooled Lengths

Applications

Lead Ribbon
Voice Coil Winding
Bonding

Microelectronic Interconnects
Catheters and Other Medical Products

Production Volume

Prototype
Low Volume
High Volume

Typical Lead Time

Quoted on a Job by Job Basis

Additional Information

Industry Focus

Aerospace
Defense
Electronics

Medical
Research & Development

Industry Standards

ISO 9001 Certified
DFARS

REACH
RoHS