X-fab Semiconductor Foundries Ag

X-fab Semiconductor Foundries Gmbh

Melexis Technologies Sa

Hartmut Liebing

Bruno Boury

Andreas Ott

Stefan Eisenbrandt

Klaus Heinrich

Valeri Ivanov

Andreas Roth

A high-voltage sensing device providing full galvanic isolation between a high-voltage domain and a low-voltage domain, wherein the circuit topology of the device resembles that of a Wheatstone bridge, the Wheatstone bridge employing at least one voltage-controlled semiconductor resistor, wherein the circuit also comprises a reference source connected directly to the Wheatstone bridge and the device comprises a number of shielding structures to electrically isolate the high-voltage domain from the low-voltage domain.

Semiconductor circuits, devices and methods

The invention concerns semiconductor latches capable of memorizing any programmed information even after power supply has been removed. Used is a &#x3bc;m BiCMOS EPROM process but it is applicable in any other process having hot electron injection devices like EPROM, Flash EEPROM. Suggested is a bi-stable latch circuit having a pair of cross-coupled branches (I,II), each branch including a complementary driver and a load connected between a drain line and a source line and a non-volatile memory cell having a program transistor and a read transistor, at least one of said drivers and loads including said read transistor, said driver and load of said branch connected in series at a respective output node, said read transistor and program transistor having a common floating gate and separate control gates, said control gate of said program transistor connected to a program voltage, the drain of said program transistor connected to a respective input node, said control gate of said read transistor in said branch connected to said output node of the other branch (II).

Non-volatile semiconductor latch using hot-electron injection devices

Growing community of inventors

Erfurt, Germany

Hartmut Liebing