Family

Loading Family data...

• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
DEUTSCHE ITT INDUSTRIES GMBH	POSTFACH 840 HANS-BUNTE-STRASSE 19 FREIBURG 79108

International Classification(s)

• H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Gehrig, Wilfried W	March, DE	4	36
# of filed Patents : 4 Total Citations : 36
Giebel, Burkhard	Denzlingen, DE	21	284
# of filed Patents : 21 Total Citations : 284

Cited Art Landscape

Load Citation

• No Cited Art to Display

Loading Cited Art Landscape...

Patent Citation Ranking

• 17 Citation Count
• H01L Class

• 45.48 % this patent is cited more than
• 31 Age

Forward Cite Landscape

Load Citation

• No Forward Cites to Display

Loading Forward Cite Landscape...

Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent No: 5326994

Protective circuit for protecting contacts of monolithic integrated circuits by preventing parasitic latch up with other integrated circuit elements

---

Abstract

---

A protective circuit for connecting contacts of monolithic integrated circuits, particularly CMOS input/output stages. The protective circuit has a four-layer device (ta, ts) with a defined switching threshold in the area of each connecting contact (A) and a low-resistivity current path (sa) from the connecting contact (A) to a supply terminal (VSS, VDD). The protective circuit also contains devices (zw2, z5) which prevent or provide a bypass for any undesired flow of current (i3, i4) between at least parts of the four-layer device and triggerable circuit regions (W2).

---

 

---

Description

---

Claims

---

Claims data not available

---

Legal Events

 

• STCH2006
• LAPS2006
• FP2006
• REMI2006
• REMI2002
• FPAY2002
• FPAY1998
• FEPP1996
• I1994
• F1992
• AS1992
• PD1991

Date	Code	Event	Description
Aug 02, 2006	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Aug 02, 2006	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES	free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Jul 05, 2006	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Jul 05, 2006
Jan 18, 2006	REMI	MAINTENANCE FEE REMINDER MAILED
Jan 30, 2002	REMI	MAINTENANCE FEE REMINDER MAILED
Jan 04, 2002	FPAY	FEE PAYMENT	year of fee payment: 8
Jan 02, 1998	FPAY	FEE PAYMENT	year of fee payment: 4
Nov 02, 1996	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Jul 05, 1994	I	Issuance
Oct 02, 1992	F	Filing
Sep 18, 1992	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:GIEBEL, BURKHARD;GEHRIG, WILFRIED WERNER;REEL/FRAME:006342/0195 Owner name: DEUTSCHE ITT INDUSTRIES GMBH, GERMANY Effective Date: Sep 18, 1992
Oct 22, 1991	PD	Priority Date