|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
| 
	| 
 |  
        |  | Epic |  |  | 
 |  |  | 
|  |  | 
|  | | General Instrument(now General Semiconductor) 
 | 
 | 
|  | | General Instrument(now General Semiconductor) 
 | 
 | 
|  | | General Instrument(now General Semiconductor) 
 | 
 | 
|  |  | 
|  |  | 
|  | | Gould(now American Microsystems) 
 | 
 | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  | | ITT Industries [Micronas Semi](now Intermetall) 
 | 
 | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
| 
	| 
 |  
        |  | MEMC |  |  | 
 |  |  | 
|  | | MHS  Matra Harris Semiconductor 
 | 
 | 
|  | | MHS  Matra Harris Semiconductor 
 | 
 | 
|  | | MHS  Matra Harris Semiconductor 
 | 
 | 
|  |  | 
|  | | Monolithic Memories Inc.(now Vantis) 
 | 
 | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  |