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Class 438/307 - Using same conductivity-type dopant


Subclass of Class 438 - Semiconductor device manufacturing: process
Definition: Process wherein the same conductivity-type electrically
No. of patents: 445
Last issue date: 03/27/2012


                    12  
NumberTitleIssue Date
4046607Method of manufacturing a semiconductor device
A silicon layer is deposited over the insulating layer covering the surface of the semiconductor substrate and apertured to define a contact window through which the silicon layer is connected with a one-conductivity-type region formed in the semiconducto...
09/06/1977
4013489Process for forming a low resistance interconnect in MOS N-channel silicon gate integrated circuit
A low resistance crossunder (interconnect) for n-channel, silicon gate integrated circuits, particularly useful where shallow source and drain regions are employed. The crossunder is formed in the substrate from a doped polycrystalline silicon layer which...
03/22/1977
3997367Method for making transistors
Submicron plasma trimming of a patterened resist material is combined with ion implantation techniques to achieve submicron control of lateral doping profiles. This makes possible the high-yield fabrication of, for example, bipolar microwave transitors of...
12/14/1976
3967364Method of manufacturing semiconductor devices
A method of manufacturing a MOSIC comprises the steps of forming a diffused layer selectively in one principal plane of a semiconductor substrate, forming a first insulating film on the substrate, forming a first wiring layer after providing holes in the ...
07/06/1976
3936857Insulated gate field effect transistor having high transconductance
An insulated gate field effect transistor having improved high-frequency operating characteristics includes an extended region electrically connected to one of the source and drain regions and spaced from the surface of the substrate. The extended region ...
02/03/1976
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