Method of making a photoelectric converter element. This includes a step that forms a layer containing organic material and particles on a piece of metal with a photoelectric portion followed by an action that smooths the surface of the layer by dry etching.

1. Field of the Invention

The invention concerns a photoelectric converter element and manufacturing processes for the element.

2. Description of Related Art

Pixel arrays are a part of a photoelectric conversion component that, where photodiodes are organized, comprises regions that are lit and also light-shielded areas. Every light-shielded area is called an optical black region (OB) and is used to generate a signal to be used as a reference to the image sensor. Some regions with light shielding have unevenness on their surfaces. Japanese Patent Laid-Open No. 2012-204402 discloses a technique of creating an uneven surface by etching a region over a light-shielded area simultaneously with the etching of the entire surface of an image sensor to allow the formation of openings in pad portions to allow interconnection. Japanese Patent Laid Open No. 2012-204402, as the surface of the light-shielded area is constructed from the same material used in the microlens portion, it has been difficult to determine the right conditions for etching to create unevenness through etching. The number of steps required to produce unevenness on the surface through etching increases. This includes the making of a resist mask to form a microlens section. This prolongs the etching process.

The present invention can provide a photoelectric conversion element which reduces the influence of the reflection of light by the surface of a layer above the photoelectric conversion element and a method of manufacturing the photoelectricconversion element.

A method of manufacturing an element for converting photoelectric energy according to a particular aspect of the invention comprises the process of forming a layer of organic material composed of particles and then spreads it on a member having a photoelectric portion followed by a step that roughens the surface of the layer with dry etching.

Additional features of the present invention will become apparent from the description below of exemplary embodiments, including the drawings attached.

Click here to view the patent on USPTO website.


Get Patents with PatentPC

What is a patent?

A patent is granted by the government to safeguard an invention patents give the inventor with exclusive rights to use, create to sell, and promote the invention? society is benefited when a brand new technology is introduced to the market. The benefits can be realized directly when people can accomplish feats previously unattainable and indirectly by the economic opportunities which innovation can bring (business growth, jobs).

Many pharmaceutical companies and researchers at universities seek patent protection to protect their research and development. Patents are granted for products, processes, or method of making new materials. Patent protection is granted to an invention that is useful unique, innovative, and not already known by others in the same area.

Patents recognize and give inventors a reward for commercially profitable inventions. They act as a motivator for inventors to invent. Small companies and inventors can rest certain that they will receive the most return from their investment in technology advancement through patents. It means that they can earn money from their work.

Businesses that have the capacity to:

Protect your innovative products and services.

Increase the visibility and value of your product’s presence on the market

Make your brand stand out from the competition.

Get technical and business information.

Beware of the possibility of accidentally using third-party proprietary content or losing valuable information, innovative outputs, or any other innovative output.

Patents transform the knowledge of inventors into a marketable asset, that opens new avenues to create jobs by licensing joint ventures and joint ventures.

Small companies that have patent protection are more attractive to investors in the commercialization and development of technology.

Patenting may lead to the development of fresh ideas and innovative inventions. This information could be protected by patents.

Patents can be used to prevent untrustworthy third parties from profiting through the work of inventions.

Patent-protected technology revenue that is commercially profitable can be used to finance research and development (R&D) which can increase the chance of a better technology in the near future.

Intellectual property ownership is a way to convince investors and lenders that there are real chances to commercialize your product. One powerful patent may lead to numerous financing options. You can use patents and other IP assets as collateral or security for financing. Investors are also able to view your patent assets to increase their company valuation. Forbes and other publications have reported that each patent can increase anywhere from $500,000 to 1 million dollars to your company’s valuation.

A well-constructed business plan is essential for start-ups. It must be based on IP and show the way your product or service stands out. Investors will be amazed if your IP rights are secure or are in the process of becoming secure, and if they agree with your business plan.

It is vital to protect an invention prior to filing a patent application. Making an invention public before it is filed can frequently degrade its originality and make it ineligible for patent protection. Therefore, pre-filing disclosures (e.g., for test-marketing, investors, or other business partners) should only be filed following the signing of a confidentiality agreement.

There are a variety of patents and knowing the different types is crucial to protect your invention. Utility patents cover new techniques and machines. Design patents cover ornamental designs. Utility patents are best and protect the owner against competitors and copycats. Most often, utility patents are issued for improvements or modifications on existing inventions. Utility patents can also be used to cover improvements and modifications in existing inventions. A process patent could describe the methods or actions of performing a particular act. But, a chemical composition will include the combination of components.

What is the length of time a patent will last? Utility patents last 20 years from the initial filing dates, but their expirations may be extended because of patent office delays for instance.

Do you want to protect your idea? As patents are only granted for first-to-file applicants and you must start filing quickly. Call PatentPC to speak with a patent attorney PatentPC to file your invention now!

When drafting a patent application, you should do an internet search for patents, since the search will give you an insight into the other applicants’ thoughts. You’ll be able reduce the scope of your invention. Furthermore, you’ll discover the latest art in your area of invention. This will allow you to understand the scope of your invention and prepare for the filing of your patent application.

How to Search for Patents

The first step in getting your patent is to do the patent search. You can do a google patent search or do a USPTO search. After the patent application has been filed, the product covered by the application can be called patent-pending, and you can find the patent application on a public pair. When the patent office approves the patent application, you are able to conduct a patent number search to find the patent issued, and your product will now be patented. You can also utilize the USPTO search engine. Check out the following article for more information. You can get help from an attorney who is a patent or patent attorney. Patents granted in the United States are granted by the US trademark and patent office, or the United States patent office. This office also reviews trademark applications.

Are you interested in similar patents? Here are the steps to follow:

1. Think of terms to describe your invention, based on the purpose, composition and use.

Write down a short, but precise explanation of your invention. Do not use generic terms such as “device,” “process,” and “system.” Instead, think about synonyms for the terms you chose initially. Also, make note of key technical terms and key words.

To help you identify keywords and concepts, use the questions below.

  • What is the goal of the invention? Is it a utilitarian device or an ornamental design?
  • Is the invention a method of creating something or performing a function? Does it constitute a product?
  • What is the purpose and composition of the invention? What is the invention’s physical structure?
  • What’s the purpose of the invention?
  • What are technical terms and keywords that describe the nature of an invention? A technical dictionary can help you locate the right phrases.

2. These terms enable you to search for pertinent Cooperative Patent Classifications on the Classification Search Tool. To find the most appropriate classification for your invention, look through the class scheme of the classification (class schedules). If you don’t get any results using the Classification Text Search, you might want to think about substituting the words that describe your invention with synonyms.

3. Check the CPC Classification Definition to verify the accuracy of the CPC classification you found. The hyperlink to the CPC classification definition will be available if the chosen classification title is a blue square with a “D” to the left. CPC classification definitions can help determine the scope of the classification which is why you can be sure to select the most pertinent. These definitions may also include search tips or other suggestions that could be helpful for further study.

4. Retrieve patent documents with the CPC classification from the Patents Full-Text and Image Database. By focusing your search on abstracts and representative drawings, you can narrow down your search for the relevant patent documents.

5. Take advantage of this list of most relevant patent publications to examine each one in depth for any similarity to your invention. Pay close attention to the specifications and claims. Contact the applicant as well as the patent examiner for additional patents.

6. You can find patent applications published in the past that fit the CPC classification you selected in Step 3. You can apply the same strategy of searching as in Step 4. You can narrow your results down to the relevant patent applications by examining the abstract and illustrations on every page. After that, take a close look at the published patent applications, paying particular attention to the claims as well as additional drawings.

7. Locate other US patent publications by keyword searching in PatFT or AppFT databases, searching for classification of non-U.S. patents using the below, and searching for non-patent publications of inventions with web search engines. Here are some examples:

  • Add keywords to your search. Keyword searches may turn up documents that are not well-categorized or have missed classifications during Step 2. For example, US patent examiners often supplement their classification searches with keyword searches. Think about the use of technical engineering terminology rather than everyday words.
  • Search for foreign patents using the CPC classification. Then, re-run the search using international patent office search engines such as Espacenet, the European Patent Office’s worldwide patent publication database of over 130 million patent publications. Other national databases include:
  • Search non-patent literature. Inventions can be made public in many non-patent publications. It is recommended that you search journals, books, websites, technical catalogs, conference proceedings, and other print and electronic publications.

To review your search, you can hire a registered patent attorney to assist. A preliminary search will help one better prepare to talk about their invention and other related inventions with a professional patent attorney. In addition, the attorney will not spend too much time or money on patenting basics.