How to Ensure Your CMP Roughness Pad Is Optimal and Extend Its Lifetime

cmp1

In the semiconductor and optics world there is a very important process known as CMP – Chemical Mechanical Planarization. One of the key players in this process is the roughness pad (A.K.A polishing pad) which is used in the following way:

Read More

When Should I Use an HD Sensor?

hd1

When choosing an optical displacement sensor for 2D or 3D scans there are many parameters which need to be taken into account for best results. If you approach an optical distance sensor distributor or manufacturer for a solution to your problem, he will ask you two main questions:

  1. What type of material do you need to scan?
  2. What level of accuracy is needed?
Read More

The Best Way to Scan Coin Reliefs for Minting Perfect Coins

mint

The accuracy of a coin is completely dependent on how well the reliefs or molds are created.

If this isn’t done just right, you risk:

  • Poor quality coins
  • Coins that are not all identical
  • Enabling counterfeiting

Clearly official mints are under a lot of pressure to create measured and traceable mints.

Measuring Coins and Minting Reliefs

Here’s how to they turn a coin relief into digital data.

Read More

The Best Way to Keep Your Laser Focused on its Work Piece

focused_on_work

Take laser marking, for example.

If your laser isn’t properly focused on the work piece, the marking will be the wrong shade or even completely ineffective.

However, keeping your laser in the correct focus is easier said than done.  For instance, if the work piece isn’t totally flat the laser must be programmed to a different z-distance all along the work piece.

Read More

Electroplating: How to Save Time and Increase Your Yield

1

The electroplating process is costly in both raw materials and time investment.
On top of that, the yield is quite low: a 30% yield is typical.
We used Optimet sensors to both increase the yield and save hours in production.

Read More

Optimet Innovations at Control Stuttgart 2016

ConoLine

This year Optimet™ introduces ConoLine-100, non-contact laser line distance sensor for measuring complex geometries & undercuts at Control 2016.

Read More

Diffusive Lenses Radii Measurement

Diffusive Lenses Radii Measurement

One of the challenges of the optical manufacturer is measuring a lens curvature and its radius. Producing a lens has a long process from the raw material stage until the final product is created, which is polished and curved, either spherical or aspherical.

Measuring a polished and transparent flat lens is possible, albeit challenging. Measuring a polished and transparent lens which is curved is even more challenging since the signal back-reflection has to go inside the detector in order to get a measurement. The angular coverage of a laser sensor over glass is very limited and stands over a few degrees only.
Along the lens manufacturing process there is a stage where the lens is still diffusive after its grinding, and before polished. Such condition is perfectly suitable for measuring by a non-contact laser sensor. Other technologies which are also used today are manual spherometer and a touch probe. Both are relatively slow process and a non-contact sensor can make the measurement much faster.

Read More

Screen Scratch Inspection

Screen Scratches Inspection

Nowadays a lot of glass screen manufacturers have to monitor their process constantly. Among the different measurements are glass thickness, glass coating thickness and scratch inspection.

Many products such as computer touch screens, phone screens and LCDs have those needs. Most of the tests are done today in Far-East countries such as Korea, China and Japan, but not exclusively. Many of them use vision equipment in order to cover large areas, and combine this with high-resolution laser sensors over local detected “suspicious areas.”

Read More

Optical Measurement of Narrow Holes

Optical Measurement of Narrow Holes

Measuring deep, narrow holes with a ratio of 1:5 (diameter: height) has always been a difficult and largely unsolved problem. It gets worse when we consider that not only the bottom surface needs to be scanned, but also the side walls which are characterized with steep angles that sometimes exceed 75°. This often causes multiple reflections from the side walls, which ruin the signal.

Read More

High Speed Tire & Rubber Inspection

conopoint tire scan

Tire manufacturers need to inspect their tire grooves with its sharp angles and hard geometry. High quality tires are usually made out of black rubber which is more challenging to measure due to its low reflection signal. The problem becomes even more challenging when there are paint marks on the tire which are a different color, with a different back signal. The Optimet sensors provide both SNR parameter and also “Total”, which is the amount of light used by the detector on every surface. Both in R&D sections and on the manufacturing floor, engineers are using sensors to monitor the tire erosion, and to better understand the effects of sipes geometry on the tire’s performance.

Read More
1 2