Rong Fong Huang

US Patent:

6648999, Nov 18, 2003

Filed:

Aug 27, 2001

Appl. No.:

09/940291

Inventors:

Jeremy W. Burdon - Scottsdale AZ
Rong Fong Huang - Fremont CA

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01G 400

US Classification:

156 8912, 1563082, 427 96

Abstract:

An intermediate low-pressure laminated ceramic device is formed from a plurality of layers of unfired ceramic material each including ceramic particles in an organic binder. A polymer interfacial layer having a glass transition temperature such that it flows at a temperature below a temperature required for the unfired ceramic layers to substantially deform, is deposited on one surface of each of the unfired ceramic layers. The unfired ceramic layers are stacked with an interfacial layer positioned between adjacent unfired ceramic layers in the stack. The stack is heated to a temperature greater than the glass transition temperature of the interfacial layers and a pressure is applied to the heated stack below approximately 1200 psi to fixedly bond the plurality of layers in the stack together.

US Patent:

20030047849, Mar 13, 2003

Filed:

Sep 11, 2001

Appl. No.:

09/952784

Inventors:

Rong Huang - Fremont CA, US

Assignee:

Motorola, Inc.

International Classification:

C04B033/32

US Classification:

264/681000, 264/614000

Abstract:

A method to fabricate a printed circuit board with a low temperature coefficient of resonant frequency comprising the steps of mixing a volume of glass particles, a volume of filler material, and a volume of finely modifier powder. The function of the finely modifier powder is to adjust the low temperature of resonant frequency. The mixture is sintered at a temperature to form a low temperature cofired ceramic which will have a low temperature coefficient of resonant frequency that is approximately zero.

US Patent:

62423762, Jun 5, 2001

Filed:

Sep 21, 1999

Appl. No.:

9/399978

Inventors:

Jeffrey Richard Jacquin - Albuquerque NM
Rong Fong Huang - Tempe AZ
Randy Elvin Rose - Rio Rancho NM

Assignee:

CTS Corporation - Elkhart IN

International Classification:

C04B 35478

US Classification:

501134

Abstract:

An alumina based dielectric ceramic composition comprising a base material and an additive material. The base material is represented by the general formula (x) Al. sub. 2 O. sub. 3 +(y) TiO. sub. 2 wherein x and y are percentages of the total weight of the base material, and x is in the range of about 60 to about 96, more preferably about 94 to about 96, and y is in the range of about 4 to about 40, more preferably about 4 to about 6. In one embodiment the additive material comprises Nb. sub. 2 O. sub. 5. In a second embodiment the additive material further comprises at least one additional component selected from the group consisting of BaCO. sub. 3, SnO. sub. 2, Mn. sub. 2 O. sub. 3, MnCO. sub. 3, Mg(OH). sub. 2, and Y. sub. 2 O. sub. 3. The composition requires a relatively lower peak soak temperature (as compared to conventional alumina ceramics) of about 1320 to about 1400. degree. C. , more optimally about 1350 to about 1370. degree. C.

US Patent:

54317185, Jul 11, 1995

Filed:

Jul 5, 1994

Appl. No.:

8/270339

Inventors:

James H. Lombard - Albuquerque NM
Rong F. Huang - Albuquerque NM

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

C23C 1808

US Classification:

106 114

Abstract:

A high adhesion strength, co-fireable, solderable silver metallization material for use with low-fire ceramics is provided. The metallization material includes the metallization powder as well as a binder vehicle, and an adhesion promoting agent. The combination of elements allows a metallization material which can be cofired at relatively low temperatures necessary for firing ceramic substrate materials while providing an adequate base for soldering subsequent circuit components to the ceramic substrate.

US Patent:

48720860, Oct 3, 1989

Filed:

Oct 20, 1988

Appl. No.:

7/260548

Inventors:

Rong F. Huang - Albuquerque NM
Wei-Yean Howng - Albuquerque NM

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01G 410

US Classification:

361321

Abstract:

Ceramic dielectric substrates, calcium titanate, bismuth titanate and strontium titanate, used with superconductor, Ytrium Barium Copper Oxide, or YBC, as an electrode, produce a superconducting electrical device, useable as a filter or capacitor. The electrical device formed by using one of the dielectrics taught herein in combination with YBC, is mechanically stable in comparison to prior art ceramic dielectrics that used YBC for an electrode material, in that the YBC is substantially free of microcracks and remains bonded to the substrates.

US Patent:

49978128, Mar 5, 1991

Filed:

Sep 12, 1988

Appl. No.:

7/242993

Inventors:

Rong F. Huang - Albuquerque NM

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

B32B 300

US Classification:

505 1

Abstract:

An Ytrium Barium Copper Oxide-based thick-film paste is disclosed, which when deposited on an alumina substrate is superconducting above the termperature of liquid nitrogen and substantially free of mechanical defects such as cracking or peeling. A method of applying the paste, including the curing process, insures that the YBC superconductor is boned to the substrate.

US Patent:

58183132, Oct 6, 1998

Filed:

Jan 31, 1997

Appl. No.:

8/792588

Inventors:

John C. Estes - Albuquerque NM
Richard Kommrusch - Albuquerque NM
Rong Fong Huang - Albuquerque NM

Assignee:

Motorola Inc. - Schaumburg IL

International Classification:

H01P 120
H03H 701

US Classification:

333262

Abstract:

A laminated lowpass filter (100) is disclosed. The filter (100) has: a stack of dielectric substrates (301-312) having a ground via (118); a pi network coupled between an input (202) and an output (202'); a first leg comprising a first transmission line (608) and a first capacitance (C1) connected to a top ground plane (GP1); a second leg comprising a second transmission line (608') and a second capacitance (C2) connected to a bottom ground plane (GP2); a middle leg including a transmission line (606) is between the first and second leg; the single point ground plane configuration prevents ground loops and minimizes the passage of stray signals through the laminated lowpass filter (100).

US Patent:

58669221, Feb 2, 1999

Filed:

Dec 23, 1996

Appl. No.:

8/772448

Inventors:

Rong Ting Huang - Gilbert AZ
Phil Wright - Scottsdale AZ
Paige M. Holm - Phoenix AZ
Song Q. Shi - Phoenix AZ

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01L 3300
H05B 3300
H05B 3306

US Classification:

257 93

Abstract:

An integrated matrix of light emitting devices includes a plurality of isolated semiconductor LEDs positioned in a matrix of rows and columns on the surface of a substrate. A plurality of column buses, one each positioned adjacent each column of semiconductor LEDs, is provided with each of the column buses being connected to a first terminal of each semiconductor LED in the adjacent column of semiconductor LEDs and each of the column buses providing an exposed planar surface. A plurality of OEDs is positioned on the exposed planar surface of each column bus with a first terminal of each OED connected to the column bus.