Claims
- 1. A work holder in a wire bonding machine, comprising:
a bottom plate having a first rail guide at a first side and a second, parallel rail guide at a second side; a first side rail and a second side rail, said first side rail engaging said first rail guide and said second side rail engaging said second rail guide, said second side rail defining a precisor plate receiving opening therethough; a top plate having a bottom surface received on said first and second side rails; a vertical slide positioned proximate said second side rail; a precisor plate attached to said vertical slide and extending through said precisor plate receiving opening; and a heat block attached to said precisor plate having a top surface positioned below to said bottom surface of said top plate.
- 2. A heat block for a wire bonding machine having a precisor plate attached thereto, comprising:
a heat block having an attachment surface defining at least one precisor alignment member receiving portion and an abutment surface for abutting a surface of the precisor plate.
- 3. A kit for a precisor plate used in a wire bonding machine, comprising:
a precisor plate having a heat block attachment portion thereon; a heat block for attaching to said heat block attachment portion; and a pair of alignment pins to be fixedly attached to said precisor plate and spaced to engage tooling holes in a lead frame.
- 4. A method of wire bonding a first plurality of lead frames and a second plurality of lead frames, each having indexing holes therein, comprising:
wire bonding a first plurality of lead frames with a wire bonding machine having a precisor plate in a first position, the precisor plate having at least two alignment pins attached thereto; changing the position of the precisor plate by loosening the precisor plate from the wire bonding machine so that the precisor plate can be moved relative to the slider; raising the precisor plate until the at least two alignment pins of the precisor plate engage the indexing holes of the lead frame; moving the precisor plate relative to the lead frame until the at least two alignment pins precisely engage the indexing holes of the lead frame without substantial contact with the lead frame; fastening the precisor plate to the wire bonding machine; and wire bonding a second plurality of lead frames.
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of application Ser. No. 09/862,238, filed May 22, 2001, pending, which is a continuation of application Ser. No. 09/333,080, filed Jun. 14, 1999, now U.S. Pat. No. 6,237,830, issued May 29, 2001, which is a divisional of application Ser. No. 08/794,877, filed Feb. 5, 1997, now U.S. Pat. No. 5,971,256, issued Oct. 26, 1999.
Divisions (1)
|
Number |
Date |
Country |
Parent |
08794877 |
Feb 1997 |
US |
Child |
09333080 |
Jun 1999 |
US |
Continuations (2)
|
Number |
Date |
Country |
Parent |
09862238 |
May 2001 |
US |
Child |
10139430 |
May 2002 |
US |
Parent |
09333080 |
Jun 1999 |
US |
Child |
09862238 |
May 2001 |
US |