Spin casting (Durimide 7520): View

on front Spin casting (Durimide 7520)

Process characteristics:

Thickness

Thickness of film to be deposited.
(cured thickness)

10 .. 40 µm

Batch size

Material

Durimide 7520

Sides processed

either

Equipment

Equipment characteristics:

Piece dimension

Range of wafer piece dimensions the equipment can accept

1 .. 6 inch

Piece geometry

Geometry of wafer pieces the equipment can accept

circular, irregular, other, rectangular

Piece thickness

Range of wafer piece thickness the equipment can accept

200 .. 800 µm

Wafer materials

List of wafer materials this tool can accept (not list of all materials, just the wafer itself).

gallium arsenide, glass (category), other, silicon

Comments:

Durimide 7500 series polyimides are photo-imageable polyimide precursors which are sensitive both in g- and i-line. They can therefore be imaged on all exposure tools. They are suitable for a wide range of applications on a wide range of substrates which includes silicon and gallium arsenide, alumina, and glass. They are not suitable for use on pure copper metalization. The major application in which Durimide 7500 series polyimides are used today is integrated circuit buffer coats.
The reported thickness is for the cured films. Softbaked films of Durimide 7520 have thicknesses of 18 um to 75um.