Fishing – trapping – and vermin destroying
Patent
1994-05-13
1996-05-07
Chaudhari, Chandra
Fishing, trapping, and vermin destroying
437 48, 437 38, H01L 218246
Patent
active
055146090
ABSTRACT:
A read only memory semiconductor integrated circuit device includes an improved cell region and a method of manufacture therefor. The improved cell region includes a recessed dielectric region overlying a gate electrode region. Such recessed dielectric region allows for an implanting or coding step to occur after the dielectric layer is applied to the surface of the device. Coding of the ROM device during a latter processing step shortens product turn-around-time. The improved cell also includes an improved method of manufacture. Such method provides for a dielectric layer formed over a gate electrode of a partially completed device. The method further provides etching the upper portion of the dielectric layer overlying the gate electrode to form a recessed region. A step of coding or implanting is then performed to change the device from enhancement mode into depletion mode, thereby providing the ROM code for the designated cell.
REFERENCES:
patent: 4364167 (1982-12-01), Donley
patent: 4513494 (1985-04-01), Batra
patent: 5270237 (1993-12-01), Sang et al.
Wolf, "Silicon Processing for the VLSI era, vol. 1", 1986, pp. 539-541.
Chen Min-Liang
Kau Jau-Nan
Tsui Ying-Kit
Chaudhari Chandra
Mosel Vitelic Inc.
LandOfFree
Through glass ROM code implant to reduce product delivering time does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Through glass ROM code implant to reduce product delivering time, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Through glass ROM code implant to reduce product delivering time will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1226897