1
Bernard M Kulwicki: Fine-grain pyroelectric detector material and method. Texas Instruments Incorporated, Brian A Carlson, James C Kesterson, Richard L Donaldson, July 18, 1995: US05434410 (65 worldwide citation)

An improved pyroelectric material comprises a polycrystalline material doped with at least one donor element such that the polycrystalline material has a grain size less than 10 .mu.m (or 5 .mu.m) and a Figure of Merit greater than 90 nC/(cm.sup.2* K). In the preferred embodiments the polycrystallin ...


2
Robert Tsu, Bernard M Kulwicki: Method of making barium strontium titanate (BST) thin film by erbium donor doping. Texas Instruments Incorporated, James E Harris, Richard A Stoltz, Richard L Donaldson, March 24, 1998: US05731220 (34 worldwide citation)

A semiconductor device and process for making the same are disclosed which incorporate a relatively large percentage of erbium dopant (1 to 5%) into a BST dielectric film 24 with small grain size (e.g. 10 nm to 50 nm). Dielectric film 24 is preferably disposed between electrodes 18 and 26 (which pre ...


3
Bernard M Kulwicki, Robert Tsu: Barium strontium titanate (BST) thin films using boron. Texas Instruments Incorporated, James E Harris, Richard A Stoltz, Richard L Donaldson, April 1, 1997: US05617290 (28 worldwide citation)

A semiconductor device and process for making the same are disclosed which incorporate boron, which has been found to be substantially insoluble in BST, into a BST dielectric film 24. Dielectric film 24 is preferably disposed between electrodes 18 and 26 (which preferably have a Pt layer contacting ...


4
Bernard M Kulwicki, Norman P St Martin: Ceramic semiconductors. Texas Instruments Incorporated, James P McAndrews, John A Haug, July 18, 1978: US04101454 (26 worldwide citation)

Ceramic semiconductor materials of positive temperature coefficient of resistivity characterized by low room temperature resistivity, by very high peak resistivity and by excellent voltage sensitivity properties are economically produced by sintering in air. Barium and other titanate, stannate and z ...


5
Robert Tsu, Bernard M Kulwicki: Barium strontium titanate (BST) thin films by erbium donor doping. Texas Instruments Incorporated, James E Harris, Richard A Stoltz, Richard L Donaldson, June 3, 1997: US05635741 (23 worldwide citation)

A semiconductor device and process for making the same are disclosed which incorporate a relatively large percentage of erbium dopant (1 to 5%) into a BST dielectric film 24 with small grain size (e.g. 10 nm to 50 nm). Dielectric film 24 is preferably disposed between electrodes 18 and 26 (which pre ...


6
Robert Tsu, Bernard M Kulwicki: Barium strontium titanate (BST) thin films by holmium donor doping. Texas Instruments Incorporated, Richard A Stoltz, Richard A Donaldson, Willieam E Hiller, September 26, 1995: US05453908 (17 worldwide citation)

A semiconductor device and process for making the same are disclosed which incorporate a relatively large percentage of holmium dopant (0.5 to 5%) into a BST dielectric film 24 with small grain size (e.g. 10 nm to 50 nm). Dielectric film 24 is preferably disposed between electrodes 18 and 26 (which ...


7
Peter G Berg, Leo Marcoux, Bernard M Kulwicki: Multipassage, multiphase electrical heater. Texas Instruments Incorporated, John A Haug, James P McAndrews, Melvin Sharp, January 5, 1988: US04717813 (15 worldwide citation)

A resistor particularly useful as a multiphase, self-regulating fluid heater has passages extending through a body of ceramic resistance material of positive temperature coefficient of resistivity (PTC) for heating fluid adapted to pass therethrough. Several embodiments are provided with electricall ...


8
Bernard M Kulwicki: Fine-grain pyroelectric detector material and method. Texas Instruments Incorporated, Richard A Stoltz, James C Kesterson, Richard L Donaldson, May 24, 1994: US05314651 (13 worldwide citation)

An improved pyroelectric material comprises a polycrystalline material doped with at least one donor element such that the polycrystalline material has a grain size less than 10 .mu.m (or 5 .mu.m) and a Figure of Merit greater than 90 nC/(cm.sup.2.K). In the preferred embodiments the polycrystalline ...


9
Bernard M Kulwicki, David F Lynch, Stanley J Lukasiewicz: Method for producing titanate powder and product made thereby. Texas Instruments Incorporated, Russell E Baumann, Richard L Donaldson, Rene E Grossman, November 29, 1994: US05368834 (11 worldwide citation)

Titanate ceramic materials are made by forming a common solution (10) of barium acetate, strontium acetate, isopropyl titanate, lactic acid and water, forming a mist of particles of approximately 50 um or smaller, directing a carrier stream of gas (14) through the mist into a reaction zone in a furn ...


10
Peter G Berg, Vishwa Shukla, Bernard M Kulwicki, Thomas C Conlan: Heat-exchanger. Texas Instruments Incorporated, James P McAndrews, John A Haug, Melvin Sharp, December 30, 1986: US04633069 (8 worldwide citation)

A body comprising a ceramic electrical resistance material of positive temperature coefficient of resistivity adapted to display a sharp increase in resistivity when heated to a selected temperature has passages extending through the body between opposite ends of the body for passing fluid through t ...