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Vishay Electro-Films

Revision: 26-Sep-2018

1

Document Number: 61111

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

Custom Substrates - Conductor Resistor Pattern and Overcoat

FEATURES

• Precision conductor and resistor patterns

• TaN and NiCr resistor films

• Resistor tolerance down to 0.1 %

• Silicon nitirde, and polyimide overcoat coatings

• Metallization on 1 or 2 surfaces

• Various substrate materials

• Sputtered / plated metal systems

• Custom sizes from 0.020" x 0.020" to 4.000" x 4.000"

• Quick delivery available

APPLICATIONS

Vishay EFI conductor resistor patterned substrates with optional overcoat coatings are used in the hybrid circuit, microwave,

and telecommunications industries. These conductor resistor patterns are precisely manufactured to be used for precision

current flow, voltage division and RF / Microwave designs. Resistor overcoat options are used for resistor protection and can

be applied and patterned to match the conductor and / or resistor pattern. The conductor resistor patterned substrates are

manufactured using Vishay Electro-Films (EFI) sophisticated thin film equipment and manufacturing technology. The custom

specialty film substrates are visually inspected to MIL-STD-883, method 2032 class H or K.

THIN FILM DESIGN GUIDELINES

For further detail, please reference document:



SUBSTRATE MATERIALS

METAL SYSTEM AND CONDUCTOR PATTERNING

INTEGRATING THIN FILM RESISTORS

Vishay EFI offers two thin film resistor film choices of lithographically patterned Tantalum Nitride (TaN) or Nickel Chromium

(NiCr). The resistive film should be selected based upon application-specific requirements such as performance, assembly

packaging needs, and temperature exposure. The table below summarizes the key standard parameters of these resistor

materials.

Notes

STANDARD THIN FILM RESISTOR PARAMETERS

MATERIAL

TCR

(ppm/°C)

STANDARD SHEET

RESISTIVITY

(

/sq)

STANDARD SHEET

RESISTIVITY

AIN, BeO

(

/sq)

TaN

± 50

20 to 125

25 to 100

< 0.1 %

0.1 % to 20 %

NiCr

± 25

25 to 225

50 to 150

< 0.1 %

0.1 % to 20 %