Claims
- 1. A method of making a pyroelectric detector comprising the steps of:
- (a) providing a supporting means having a supporting surface;
- (b) providing at least one elongated link element having a shape like an arch on said supporting means by securing the two ends of the arch-like link to spaced locations on said supporting surface in a manner providing an area of contact between each end of said link element and said supporting surface at least several times smaller than said supporting surface and disposing the link so as to extend outwardly from said supporting means;
- (c) providing a sensing element of pyroelectric material in the form of a wafer having a first surface portion adapted to be disposed toward incident radiant energy, another surface portion and means on said sensing element for collecting electric charge indicative of energy absorbed by said sensing element; and
- (d) placing said sensing element on said link and securing said other surface portion of said sensing element to the outer portion of said link whereby said sensing element is held by said link in spaced relation to said supporting means.
- 2. A method according to claim 1, wherein said two ends of said link are secured to said spaced locations on said supporting surface in a manner providing substantially point contact between each end of said link and said supporting surface.
- 3. A method according to claim 1 further including providing a plurality of said link elements on said supporting means and disposing said link elements to extend outwardly in the same direction from said supporting means.
- 4. A method of making a pyroelectric detector comprising the steps of:
- (a) providing a supporting means having a supporting surface;
- (b) providing at least one elongated link element having a shape like an arch on said supporting surface by securing the two ends of the arch-like link to spaced locations on said supporting means in a manner providing an area of contact between each end of said link element and said supporting surface at least several times smaller than said supporting surface and disposing the link so as to extend outwardly from said supporting means;
- (c) providing a sensing element of pyroelectric material in the form of a wafer having a first surface portion adapted to be disposed toward incident radiant energy, another surface portion, and means on said sensing element for collecting electric charge indicative of energy absorbed by said sensing element; and
- (d) placing said sensing element on said link and securing said other surface portion of said sensing element to the outer portion of said link whereby said sensing element is held by said link in spaced relation to said supporting means;
- (e) said step of providing said link element on said supporting means comprising providing a thin length of metal wire, bonding a portion of the length of said wire to said supporting means at a first location thereon, directing an adjacent portion of the length of said wire along a path first away from said supporting means and then toward said supporting means in a manner defining said arch-like shape and returning a portion of the wire to said supporting means, and bonding the portion of said wire returned to said supporting means at a second location thereon spaced from said first location.
- 5. A method according to claim 4, wherein said steps of bonding are performed by ultrasonic bonding.
- 6. A method according to claim 4, wherein said steps of bonding are performed by thermocompression bonding.
Parent Case Info
This is a continuation of application Ser. No. 925,991 filed July 10, 1978, now U.S. Pat. No. 4,218,620.
US Referenced Citations (4)
Foreign Referenced Citations (5)
Number |
Date |
Country |
620411 |
Mar 1949 |
GBX |
790318 |
|
GBX |
992588 |
May 1965 |
GBX |
1233565 |
|
GBX |
1290990 |
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GBX |
Continuations (1)
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Number |
Date |
Country |
Parent |
925991 |
Jul 1978 |
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