# US 7,612,333 B2 · Imaging apparatus and photoelectric conversion element package retaining unit

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- Number: US 7,612,333 B2
- Document ID: US7612333B2
- Status: Granted
- Kind: B2
- Application number: 12/196,912
- Filed: 2008-08-22
- Published: 2009-02-26
- Granted: 2009-11-03
- Earliest claimed: 2007-08-24
- Assignees: Canon Kabushiki Kaisha
- Inventors: Koji Ishikawa
- Web page: https://patentgrep.com/patent/US7612333B2

## CPC

- H04N 23/54: Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A photoelectric conversion element package retaining unit includes a photoelectric conversion element package having electrodes formed on a rear surface of a light-receiving surface, a printed circuit board electrically connected to the electrodes, and a retaining member configured to retain the photoelectric conversion element package. The printed circuit board includes a first opening formed in an area corresponding to an inside of the electrodes. The retaining member includes a positioning unit configured to position the photoelectric conversion element package in an axial direction orthogonal to the light-receiving surface by abutting on the photoelectric conversion element package outside the electrodes, and a second opening formed to pour an adhesive into the area corresponding to the inside of the electrodes.

## Claims

### Claim 1

A photoelectric conversion element package retaining unit comprising:
a photoelectric conversion element package including electrodes formed on a rear surface of a light-receiving surface;
a printed circuit board electrically connected to the electrodes of the photoelectric conversion element package, wherein the printed circuit board has a first opening formed in an area corresponding to an inside of the electrodes of the photoelectric conversion element package; and
a retaining member configured to retain the photoelectric conversion element package, wherein the retaining member includes:
a positioning unit configured to position the photoelectric conversion element package in an axial direction orthogonal to the light-receiving surface by abutting on the photoelectric conversion element package outside the electrodes of the photoelectric conversion element package; and
a second opening formed to pour an adhesive into the area corresponding to the inside of the electrodes of the photoelectric conversion element package.

### Claim 2 (depends on 1)

The photoelectric conversion element package retaining unit according to claim 1, wherein the second opening is smaller than the first opening.

### Claim 3 (depends on 1)

The photoelectric conversion element package retaining unit according to claim 1, wherein the electrodes of the photoelectric conversion element package are arranged on the rear surface of the light-receiving surface in a doughnut shape.

### Claim 4 (depends on 1)

The photoelectric conversion element package retaining unit according to claim 1, wherein the photoelectric conversion element package is a ball grid array (BGA) type package.

### Claim 5 (depends on 1)

The photoelectric conversion element package retaining unit according to claim 1, wherein the photoelectric conversion element package is a land grid array (LGA) type package.

### Claim 6

An imaging apparatus comprising:
a photographic lens barrel unit including a photographic lens optical system;
a photoelectric conversion element package including electrodes formed on a rear surface of a light-receiving surface;
a printed circuit board electrically connected to the electrodes of the photoelectric conversion element package, wherein a first opening is formed in an area corresponding to an inside of the electrodes of the photoelectric conversion element package in the printed circuit board; and
a retaining member configured to retain the photoelectric conversion element package so that the light-receiving surface of the photoelectric conversion element package is arranged perpendicular to an optical axis of the photographic lens optical system, wherein the retaining member includes:
a positioning unit configured to position the photoelectric conversion element package in an axial direction orthogonal to the light-receiving surface by abutting on the photoelectric conversion element package outside the electrodes of the photoelectric conversion element package; and
a second opening formed to pour an adhesive into the area corresponding to the inside of the electrodes of the photoelectric conversion element package.

### Claim 7 (depends on 6)

The imaging apparatus according to claim 6, wherein the second opening is smaller than the first opening.

### Claim 8 (depends on 6)

The imaging apparatus according to claim 6, wherein the electrodes of the photoelectric conversion element package are arranged on the rear surface of the light-receiving surface in a doughnut shape.

### Claim 9 (depends on 6)

The imaging apparatus according to claim 6, wherein the photoelectric conversion element package is a ball grid array (BGA) type package.

### Claim 10 (depends on 6)

The imaging apparatus unit according to claim 6, wherein the photoelectric conversion element package is a land grid array (LGA) type package.