Claims
- 1. A manufacturing process for producing a lead-frame forming material comprising:continuously subjecting a metal web consisting essentially of copper or a copper-nickel alloy to a degrease treatment and an acid cleaning treatment, coating a light-sensitive material on said metal web, followed by drying to form a light-sensitive layer, cutting the resulting coated metal web into fixed lengths along a longitudinal direction or winding the resulting coated metal web into a roll, and forming a matting layer on the light-sensitive material.
- 2. The manufacturing process according to claim 1 further comprising:coating an intermediate layer on said metal web thus obtained before coating said light-sensitive material to increase the adhesiveness between the metal web and the light-sensitive material.
Priority Claims (1)
Number |
Date |
Country |
Kind |
5-087799 |
Mar 1993 |
JP |
|
Parent Case Info
This is a Continuation of application Ser. No. 08/217,056 filed Mar. 24, 1994.
US Referenced Citations (12)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0046047 |
Feb 1982 |
EP |
Continuations (1)
|
Number |
Date |
Country |
Parent |
08/217056 |
Mar 1994 |
US |
Child |
08/572505 |
|
US |