GDSI - Wafer Dicing & Grinding Company San Jose

Backgrinding is a necessary process step to reduce wafer thickness prior to dicing and final assembly. By utilizing fully automated grinders staffed by highly qualified engineers, GDSI's grinding procedures produce unsurpassed precision and repeatability. Capabilities. Individual chip grinding. Wafer rounds up to 12" or 300MM.

Wafer Thickness, TTV, Bow and Warp Measurement | Non ...

Non-Contact Bow Measurement. ASTM F534 3.1.2: The deviation of the center point of the median surface of a free, unclamped wafer from the median surface reference plane established by three points equally spaced on a circle with a diameter a specified amount …

3D Optical Profilers | Bruker

Fast, Non-Contact 3D Optical Profiling. Bruker is the worldwide leader in 3D surface measurement and inspection, offering fast, non-contact analyses for samples ranging in size from microscopic MEMS to entire engine blocks. Our optical profilometers are the culmination of ten generations of proprietary Wyko® Technology advances that provide ...

(PDF) On-Line Non-Contact System for Grinding Wheel …

An on-line non-contact method for measuring the wear of a form grinding wheel is presented. A CCD (charge coupled device) camera with a selected optical lens and a frame grabber was used to ...

CNC Optical Grinding Machines | OptiPro

CNC Optical Grinding Machines. Improve the quality of your surfaces along with your bottom line. In the world of precision grinding, accuracy, speed, and ease-of-use can coexist. Save time and money with fast job setups, optimal cycle times, and quick turnaround times. Make life easy with state-of-the-art motion control components and ...

Non-contact measurement of grinding pins by means of a 2D ...

The present work proposes the use of a 2D laser micrometer to perform on-machine macrogeometric measurement and analysis of grinding pins in order to overcome non-productive time with a fast, precise and reasonably economical inspection equipment, which is easy to integrate in a CNC grinding machine.

Non-contact measurement of grinding pins by means of …

The present work proposes the use of a 2D laser micrometer to perform on-machine macrogeometric measurement and analysis of grinding pins in order to overcome non-productive time with a fast, precise and reasonably economical inspection equipment, which is easy to integrate in a CNC grinding machine.

MAXMaxphotonics Co.,Ltd.

Laser cleaning has the characteristics of no grinding, non-contact, no thermal effect and suitable for objects of various materials, and is considered to be the most reliable and effective solution. At the same time, laser cleaning can solve problems that cannot be solved by traditional cleaning methods.

US7207866B2 - Pressure feed grinding of AMLCD substrate ...

US7207866B2 US11/333,730 US33373006A US7207866B2 US 7207866 B2 US7207866 B2 US 7207866B2 US 33373006 A US33373006 A US 33373006A US 7207866 B2 US7207866 B2 US 7207866B2 Authority US United States Prior art keywords edge grinding grinding wheel glass substrate predetermined Prior art date Legal status (The legal status is an assumption and is not a …

Safety Switches | Non-Contact Magnetic Safety Switches

Non-contact magnetic safety switches provide a wide (>10mm) sensing distance and a high tolerance to misalignment after sensing. These non-coded switches are designed to conform to IEC 6 and be used as directed by EN1088, EN ISO12100 and EN 60204-1. The non-contact switches are available with plastic and stainless steel housings.

Online dressing of profile grinding wheels | SpringerLink

Improving the dressing accuracy and efficiency of profile grinding wheels has been increasingly demanded. The significance is addressed in the practical application of precision engineering. In this study, an online dressing system of profile grinding wheels is introduced. A special feature of the system is the application of the non-contact image measuring method used to evaluate …

Solutions for thinning, dicing and packaging of power ...

Ultrasonic grinding unit 11 DISCO continue testing the advantage of US grinding Ultrasonic wheel with built-in oscillator Non contact power supply Generate oscillation Normal spindle Ultrasonic oscilR ating Ultrasonic wheel circuit, power Control software Main component parts for unit Non contact power supply US Grinding Unit

(PDF) On-Line Non-Contact System for Grinding Wheel Wear ...

An on-line non-contact method for measuring the wear of a form grinding wheel is presented. A CCD (charge coupled device) camera with a selected optical lens and a frame grabber was used to ...

Hi-Precision Grinding : Deltronic – Plug Gages, Thread ...

Keyence IM, non-contact inspection system CMM, Brown & Sharpe, Gage 2000. Taylor Hobson, TR565H, Roundness Measuring Equipment Taylor Hobson, Talysurf Intra with Ultra Software for Surface Finish. Mahr Federal, Pocket Surf – Portable Surface Finish Tester. Gage Block Comparators (Numerous). Arodel non-contact laser micrometer (5 each). Supermicrometers – Pratt and Whitney …

Rui Hachimura does limited, non-contact work at Go-Go ...

Hachimura didn't do any live portion of practice and the drills were non-contact, but it was a step in the right direction for a return to game action. R. "Rui didn't do any of the contact stuff," coach Wes Unseld Jr. said before Monday's game against the Hornets. "Davis was out there in the scrimmage and looked really good.

Mechanism and Experiment Study of Non-Contact …

Ultrasonic-assisted grinding processing can effectively reduce the surface roughness and enhance the processing efficiency in the processing of hard and brittle materials. However, the most common ultrasonic assisted grinding is a type of contact ultrasonic grinding where the grinding tool directly contacts the workpiece, which means that it is necessary to accurately control the pre …

Surface Roughness Chart: Understanding Surface Finishes ...

Surface finish refers to the process of altering a metal's surface that involves removing, adding, or reshaping. It is a measure of the complete texture of a product's surface that is defined by three characteristics of surface roughness, waviness, and lay. The surface roughness is the measure of the total spaced irregularities on the surface.

Contact and Non-contact Measurements of Grinding Pins ...

The paper presents the results of contact and non-contact measurements of external profiles of selected grinding pins. The measurements were conducted in order to choose the appropriate measuring technique in the case of the considered measurement task. In the case of contact measurements the coordinate measuring machine ACCURA II was applied.

Neoteck Auto Ranging Digital Multimeter + Non-Contact ...

【Non-Contact Voltage Tester with Wide Testing Range】 This Non-Contact Voltage Tester Voltage within 12-1000V AC, All Electric Appliances in Your Family can be Tested by it 【Safe and Convenient】 The Voltage Pen Tester Detectes Voltage in a Non-Contact Way, So Do Not Worry about There Could be any Possibility of being Shocked by the ...

Laser dressing of arc-shaped resin-bonded diamond grinding ...

An environmentally friendly, non-contact dressing technology. ... The arc-shaped resin-bonded diamond grinding wheel has been a common tool for grinding spherical, aspherical and free-form surfaces of hard and brittle materials such as optical glass and engineering ceramics. A workman must first sharpen his tools if he is to do his work well.

Outercourse - A Guide to Non Penetrative (NPS)

Outercourse - A Guide to Non Penetrative (NPS) The first thing that has to be established when talking about outercourse is what it actually is. When I deal with outercourse, I refer to it as an alternative to intercourse that does not involve vaginal penetration. It is also known as Non-Penetrative (NPS).

MAX

Laser cleaning has the characteristics of no grinding, non-contact, no thermal effect and suitable for objects of various materials, and is considered to be the most reliable and effective solution. At the same time, laser cleaning can solve problems that cannot be solved by traditional cleaning methods.

Sabres' Casey Mittelstadt: Practices in non-contact jersey ...

Mittelstadt (upper body) was on the ice for Wednesday's game-day skate in a non-contact sweater, Mike Harrington of The Buffalo News reports. Mittelstadt has …

Grinding and Finishing - IIT Bombay

Grinding – Ex. 1-1 • You are grinding a steel, which has a specific grinding energy (u) of 35 W-s/mm3. • The grinding wheel rotates at 3600 rpm, has a diameter (D) of 150 mm, thickness (b) of 25 mm, and (c) 5 grains per mm2. The motor has a power of 2 kW. • The work piece moves (v) at 1.5 m/min. The chip thickness ratio (r) is 10.

On-Line Non-Contact System for Grinding Wheel Wear ...

An on-line non-contact method for measuring the wear of a form grinding wheel is presented. A CCD (charge coupled device) camera with a selected optical lens and a frame grabber was used to capture the image of a grinding wheel. The analogue signals of the image were transformed into corresponding digital grey level values.

QUALITY - Aggressive Grinding Service, Inc.

Contact Aggressive Grinding Service, Inc. 4413 Route 982 South Latrobe, PA 15650

Understanding Surface Roughness Symbols | Introduction To ...

Roughness affects various part characteristics, including the amount of wear, the ability to form a seal when the part makes contact with something, and the ability to coat the part. KEYENCE's Introduction to "Roughness" website introduces parameters and case studies related to such surface measurements.

Machining Processes – ADTW Learn

IntroductionThe electrochemical machining process is a nontraditional machining process used for machining metal or ceramics which cannot be machined by using the traditional machining processes.In the electrochemical machining process, both electrical and chemical energy is used for machining a workpiece.This process is a non-contact type ...

Surface generation and materials removal mechanism in ...

The grinding contact points between workpiece and diamond wheel show dynamic changes on the section circular arc of the diamond grinding wheel, which can effectively suppress the wear of grinding wheel and improves the profile accuracy of machined surface. ... (France, STIL, CCS, non-contact) was utilised to examine the profile accuracy and ...

Radiometry: advancing cement process control

Radiometric process control provides a non-contact and non-intrusive technique to carry out continuous level measurement, detect cyclone blockages in the preheater, measure bulk flow on the conveyor and moisture measurement. By Berthold Technologies, Germany. Radiometric process control is the perfect solution when conventional measurement ...

LaserLinc - Measurement & Control Solutions

EXPERT ADVICE. LaserLinc understands how critical your in-process and off-line measurements are, for outside diameter, ovality, wall thickness, concentricity, eccentricity, profile and more. We support a full range of in-process and off-line non-contact and sample measurement solutions for medical, wire & cable, automotive, industrial ...

Development and evaluation of non-contact automatic tool ...

It is a challenge for grinding internal screw threads due to the narrow space limitation. This paper proposes an automatic tool setting method for grinding internal screw threads with non-contact proximity switch, which can be effectively applied into realistic situation with low cost.

Applications of active thermography in non-destructive ...

Non-contact NDT of weld- and solder-joints. Non-contact NDT of adhesive joints. Non-contact wear pattern detection on gears. Thermal stress analysis (TSA) Electronic parts testing. Coating and grinding burn testing. Thermal process control. Thermography NDT systems for many different applications.